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lvm2-clvm.15869
lvm.conf
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File lvm.conf of Package lvm2-clvm.15869
# This is an example configuration file for the LVM2 system. # It contains the default settings that would be used if there was no # /etc/lvm/lvm.conf file. # # Refer to 'man lvm.conf' for further information including the file layout. # # Refer to 'man lvm.conf' for information about how settings configured in # this file are combined with built-in values and command line options to # arrive at the final values used by LVM. # # Refer to 'man lvmconfig' for information about displaying the built-in # and configured values used by LVM. # # If a default value is set in this file (not commented out), then a # new version of LVM using this file will continue using that value, # even if the new version of LVM changes the built-in default value. # # To put this file in a different directory and override /etc/lvm set # the environment variable LVM_SYSTEM_DIR before running the tools. # # N.B. Take care that each setting only appears once if uncommenting # example settings in this file. # Configuration section config. # How LVM configuration settings are handled. config { # Configuration option config/checks. # If enabled, any LVM configuration mismatch is reported. # This implies checking that the configuration key is understood by # LVM and that the value of the key is the proper type. If disabled, # any configuration mismatch is ignored and the default value is used # without any warning (a message about the configuration key not being # found is issued in verbose mode only). checks = 1 # Configuration option config/abort_on_errors. # Abort the LVM process if a configuration mismatch is found. abort_on_errors = 0 # Configuration option config/profile_dir. # Directory where LVM looks for configuration profiles. profile_dir = "/etc/lvm/profile" } # Configuration section devices. # How LVM uses block devices. devices { # Configuration option devices/dir. # Directory in which to create volume group device nodes. # Commands also accept this as a prefix on volume group names. # This configuration option is advanced. dir = "/dev" # Configuration option devices/scan. # Directories containing device nodes to use with LVM. # This configuration option is advanced. scan = [ "/dev" ] # Configuration option devices/obtain_device_list_from_udev. # Obtain the list of available devices from udev. # This avoids opening or using any inapplicable non-block devices or # subdirectories found in the udev directory. Any device node or # symlink not managed by udev in the udev directory is ignored. This # setting applies only to the udev-managed device directory; other # directories will be scanned fully. LVM needs to be compiled with # udev support for this setting to apply. obtain_device_list_from_udev = 1 # Configuration option devices/external_device_info_source. # Select an external device information source. # Some information may already be available in the system and LVM can # use this information to determine the exact type or use of devices it # processes. Using an existing external device information source can # speed up device processing as LVM does not need to run its own native # routines to acquire this information. For example, this information # is used to drive LVM filtering like MD component detection, multipath # component detection, partition detection and others. # # Accepted values: # none # No external device information source is used. # udev # Reuse existing udev database records. Applicable only if LVM is # compiled with udev support. # external_device_info_source = "none" # Configuration option devices/preferred_names. # Select which path name to display for a block device. # If multiple path names exist for a block device, and LVM needs to # display a name for the device, the path names are matched against # each item in this list of regular expressions. The first match is # used. Try to avoid using undescriptive /dev/dm-N names, if present. # If no preferred name matches, or if preferred_names are not defined, # the following built-in preferences are applied in order until one # produces a preferred name: # Prefer names with path prefixes in the order of: # /dev/mapper, /dev/disk, /dev/dm-*, /dev/block. # Prefer the name with the least number of slashes. # Prefer a name that is a symlink. # Prefer the path with least value in lexicographical order. # # Example # preferred_names = [ "^/dev/mpath/", "^/dev/mapper/mpath", "^/dev/[hs]d" ] # preferred_names = [ "^/dev/mpath/", "^/dev/mapper/mpath", "^/dev/[hs]d" ] # Configuration option devices/filter. # Limit the block devices that are used by LVM commands. # This is a list of regular expressions used to accept or reject block # device path names. Each regex is delimited by a vertical bar '|' # (or any character) and is preceded by 'a' to accept the path, or # by 'r' to reject the path. The first regex in the list to match the # path is used, producing the 'a' or 'r' result for the device. # When multiple path names exist for a block device, if any path name # matches an 'a' pattern before an 'r' pattern, then the device is # accepted. If all the path names match an 'r' pattern first, then the # device is rejected. Unmatching path names do not affect the accept # or reject decision. If no path names for a device match a pattern, # then the device is accepted. Be careful mixing 'a' and 'r' patterns, # as the combination might produce unexpected results (test changes.) # Run vgscan after changing the filter to regenerate the cache. # See the use_lvmetad comment for a special case regarding filters. # # Example # Accept every block device: # filter = [ "a|.*/|" ] # Reject the cdrom drive: # filter = [ "r|/dev/cdrom|" ] # Work with just loopback devices, e.g. for testing: # filter = [ "a|loop|", "r|.*|" ] # Accept all loop devices and ide drives except hdc: # filter = [ "a|loop|", "r|/dev/hdc|", "a|/dev/ide|", "r|.*|" ] # Use anchors to be very specific: # filter = [ "a|^/dev/hda8$|", "r|.*/|" ] # # This configuration option has an automatic default value. # filter = [ "a|.*/|" ] filter = [ "r|/dev/.*/by-path/.*|", "r|/dev/.*/by-id/.*|", "r|/dev/fd.*|", "r|/dev/cdrom|", "a/.*/" ] # Configuration option devices/global_filter_compat # Limit the block devices that are used by LVM system components. # This config item global_filter_compat is SUSE special. # The default value is 1, which means the devices/global_filter # behaviour is same as before. When the value is 0, user should # use global_filter to control system-wide software, e.g. # udev and lvmetad # global_filter_compat = 1 # Configuration option devices/global_filter. # Limit the block devices that are used by LVM system components. # Because devices/filter may be overridden from the command line, it is # not suitable for system-wide device filtering, e.g. udev and lvmetad. # Use global_filter to hide devices from these LVM system components. # The syntax is the same as devices/filter. Devices rejected by # global_filter are not opened by LVM. # This configuration option has an automatic default value. # global_filter = [ "a|.*/|" ] # Configuration option devices/cache_dir. # Directory in which to store the device cache file. # The results of filtering are cached on disk to avoid rescanning dud # devices (which can take a very long time). By default this cache is # stored in a file named .cache. It is safe to delete this file; the # tools regenerate it. If obtain_device_list_from_udev is enabled, the # list of devices is obtained from udev and any existing .cache file # is removed. cache_dir = "/etc/lvm/cache" # Configuration option devices/cache_file_prefix. # A prefix used before the .cache file name. See devices/cache_dir. cache_file_prefix = "" # Configuration option devices/write_cache_state. # Enable/disable writing the cache file. See devices/cache_dir. write_cache_state = 1 # Configuration option devices/types. # List of additional acceptable block device types. # These are of device type names from /proc/devices, followed by the # maximum number of partitions. # # Example # types = [ "fd", 16 ] # # This configuration option is advanced. # This configuration option does not have a default value defined. # Configuration option devices/sysfs_scan. # Restrict device scanning to block devices appearing in sysfs. # This is a quick way of filtering out block devices that are not # present on the system. sysfs must be part of the kernel and mounted.) sysfs_scan = 1 # Configuration option devices/multipath_component_detection. # Ignore devices that are components of DM multipath devices. multipath_component_detection = 1 # Configuration option devices/md_component_detection. # Ignore devices that are components of software RAID (md) devices. md_component_detection = 1 # Configuration option devices/fw_raid_component_detection. # Ignore devices that are components of firmware RAID devices. # LVM must use an external_device_info_source other than none for this # detection to execute. fw_raid_component_detection = 0 # Configuration option devices/md_chunk_alignment. # Align PV data blocks with md device's stripe-width. # This applies if a PV is placed directly on an md device. md_chunk_alignment = 1 # Configuration option devices/default_data_alignment. # Default alignment of the start of a PV data area in MB. # If set to 0, a value of 64KiB will be used. # Set to 1 for 1MiB, 2 for 2MiB, etc. # This configuration option has an automatic default value. # default_data_alignment = 1 # Configuration option devices/data_alignment_detection. # Detect PV data alignment based on sysfs device information. # The start of a PV data area will be a multiple of minimum_io_size or # optimal_io_size exposed in sysfs. minimum_io_size is the smallest # request the device can perform without incurring a read-modify-write # penalty, e.g. MD chunk size. optimal_io_size is the device's # preferred unit of receiving I/O, e.g. MD stripe width. # minimum_io_size is used if optimal_io_size is undefined (0). # If md_chunk_alignment is enabled, that detects the optimal_io_size. # This setting takes precedence over md_chunk_alignment. data_alignment_detection = 1 # Configuration option devices/data_alignment. # Alignment of the start of a PV data area in KiB. # If a PV is placed directly on an md device and md_chunk_alignment or # data_alignment_detection are enabled, then this setting is ignored. # Otherwise, md_chunk_alignment and data_alignment_detection are # disabled if this is set. Set to 0 to use the default alignment or the # page size, if larger. data_alignment = 0 # Configuration option devices/data_alignment_offset_detection. # Detect PV data alignment offset based on sysfs device information. # The start of a PV aligned data area will be shifted by the # alignment_offset exposed in sysfs. This offset is often 0, but may # be non-zero. Certain 4KiB sector drives that compensate for windows # partitioning will have an alignment_offset of 3584 bytes (sector 7 # is the lowest aligned logical block, the 4KiB sectors start at # LBA -1, and consequently sector 63 is aligned on a 4KiB boundary). # pvcreate --dataalignmentoffset will skip this detection. data_alignment_offset_detection = 1 # Configuration option devices/ignore_suspended_devices. # Ignore DM devices that have I/O suspended while scanning devices. # Otherwise, LVM waits for a suspended device to become accessible. # This should only be needed in recovery situations. ignore_suspended_devices = 0 # Configuration option devices/ignore_lvm_mirrors. # Do not scan 'mirror' LVs to avoid possible deadlocks. # This avoids possible deadlocks when using the 'mirror' segment type. # This setting determines whether LVs using the 'mirror' segment type # are scanned for LVM labels. This affects the ability of mirrors to # be used as physical volumes. If this setting is enabled, it is # impossible to create VGs on top of mirror LVs, i.e. to stack VGs on # mirror LVs. If this setting is disabled, allowing mirror LVs to be # scanned, it may cause LVM processes and I/O to the mirror to become # blocked. This is due to the way that the mirror segment type handles # failures. In order for the hang to occur, an LVM command must be run # just after a failure and before the automatic LVM repair process # takes place, or there must be failures in multiple mirrors in the # same VG at the same time with write failures occurring moments before # a scan of the mirror's labels. The 'mirror' scanning problems do not # apply to LVM RAID types like 'raid1' which handle failures in a # different way, making them a better choice for VG stacking. ignore_lvm_mirrors = 1 # Configuration option devices/disable_after_error_count. # Number of I/O errors after which a device is skipped. # During each LVM operation, errors received from each device are # counted. If the counter of a device exceeds the limit set here, # no further I/O is sent to that device for the remainder of the # operation. Setting this to 0 disables the counters altogether. disable_after_error_count = 0 # Configuration option devices/require_restorefile_with_uuid. # Allow use of pvcreate --uuid without requiring --restorefile. require_restorefile_with_uuid = 1 # Configuration option devices/pv_min_size. # Minimum size in KiB of block devices which can be used as PVs. # In a clustered environment all nodes must use the same value. # Any value smaller than 512KiB is ignored. The previous built-in # value was 512. pv_min_size = 2048 # Configuration option devices/issue_discards. # Issue discards to PVs that are no longer used by an LV. # Discards are sent to an LV's underlying physical volumes when the LV # is no longer using the physical volumes' space, e.g. lvremove, # lvreduce. Discards inform the storage that a region is no longer # used. Storage that supports discards advertise the protocol-specific # way discards should be issued by the kernel (TRIM, UNMAP, or # WRITE SAME with UNMAP bit set). Not all storage will support or # benefit from discards, but SSDs and thinly provisioned LUNs # generally do. If enabled, discards will only be issued if both the # storage and kernel provide support. issue_discards = 0 # Configuration option devices/allow_changes_with_duplicate_pvs. # Allow VG modification while a PV appears on multiple devices. # When a PV appears on multiple devices, LVM attempts to choose the # best device to use for the PV. If the devices represent the same # underlying storage, the choice has minimal consequence. If the # devices represent different underlying storage, the wrong choice # can result in data loss if the VG is modified. Disabling this # setting is the safest option because it prevents modifying a VG # or activating LVs in it while a PV appears on multiple devices. # Enabling this setting allows the VG to be used as usual even with # uncertain devices. allow_changes_with_duplicate_pvs = 0 # Configuration option devices/allow_mixed_block_sizes. # Allow PVs in the same VG with different logical block sizes. # When allowed, the user is responsible to ensure that an LV is # using PVs with matching block sizes when necessary. allow_mixed_block_sizes = 0 } # Configuration section allocation. # How LVM selects space and applies properties to LVs. allocation { # Configuration option allocation/cling_tag_list. # Advise LVM which PVs to use when searching for new space. # When searching for free space to extend an LV, the 'cling' allocation # policy will choose space on the same PVs as the last segment of the # existing LV. If there is insufficient space and a list of tags is # defined here, it will check whether any of them are attached to the # PVs concerned and then seek to match those PV tags between existing # extents and new extents. # # Example # Use the special tag "@*" as a wildcard to match any PV tag: # cling_tag_list = [ "@*" ] # LVs are mirrored between two sites within a single VG, and # PVs are tagged with either @site1 or @site2 to indicate where # they are situated: # cling_tag_list = [ "@site1", "@site2" ] # # This configuration option does not have a default value defined. # Configuration option allocation/maximise_cling. # Use a previous allocation algorithm. # Changes made in version 2.02.85 extended the reach of the 'cling' # policies to detect more situations where data can be grouped onto # the same disks. This setting can be used to disable the changes # and revert to the previous algorithm. maximise_cling = 1 # Configuration option allocation/use_blkid_wiping. # Use blkid to detect existing signatures on new PVs and LVs. # The blkid library can detect more signatures than the native LVM # detection code, but may take longer. LVM needs to be compiled with # blkid wiping support for this setting to apply. LVM native detection # code is currently able to recognize: MD device signatures, # swap signature, and LUKS signatures. To see the list of signatures # recognized by blkid, check the output of the 'blkid -k' command. use_blkid_wiping = 1 # Configuration option allocation/wipe_signatures_when_zeroing_new_lvs. # Look for and erase any signatures while zeroing a new LV. # The --wipesignatures option overrides this setting. # Zeroing is controlled by the -Z/--zero option, and if not specified, # zeroing is used by default if possible. Zeroing simply overwrites the # first 4KiB of a new LV with zeroes and does no signature detection or # wiping. Signature wiping goes beyond zeroing and detects exact types # and positions of signatures within the whole LV. It provides a # cleaner LV after creation as all known signatures are wiped. The LV # is not claimed incorrectly by other tools because of old signatures # from previous use. The number of signatures that LVM can detect # depends on the detection code that is selected (see # use_blkid_wiping.) Wiping each detected signature must be confirmed. # When this setting is disabled, signatures on new LVs are not detected # or erased unless the --wipesignatures option is used directly. wipe_signatures_when_zeroing_new_lvs = 1 # Configuration option allocation/mirror_logs_require_separate_pvs. # Mirror logs and images will always use different PVs. # The default setting changed in version 2.02.85. mirror_logs_require_separate_pvs = 0 # Configuration option allocation/raid_stripe_all_devices. # Stripe across all PVs when RAID stripes are not specified. # If enabled, all PVs in the VG or on the command line are used for # raid0/4/5/6/10 when the command does not specify the number of # stripes to use. # This was the default behaviour until release 2.02.162. # This configuration option has an automatic default value. # raid_stripe_all_devices = 0 # Configuration option allocation/cache_pool_metadata_require_separate_pvs. # Cache pool metadata and data will always use different PVs. cache_pool_metadata_require_separate_pvs = 0 # Configuration option allocation/cache_metadata_format. # Sets default metadata format for new cache. # # Accepted values: # 0 Automatically detected best available format # 1 Original format # 2 Improved 2nd. generation format # # This configuration option has an automatic default value. # cache_metadata_format = 0 # Configuration option allocation/cache_mode. # The default cache mode used for new cache. # # Accepted values: # writethrough # Data blocks are immediately written from the cache to disk. # writeback # Data blocks are written from the cache back to disk after some # delay to improve performance. # # This setting replaces allocation/cache_pool_cachemode. # This configuration option has an automatic default value. # cache_mode = "writethrough" # Configuration option allocation/cache_policy. # The default cache policy used for new cache volume. # Since kernel 4.2 the default policy is smq (Stochastic multiqueue), # otherwise the older mq (Multiqueue) policy is selected. # This configuration option does not have a default value defined. # Configuration section allocation/cache_settings. # Settings for the cache policy. # See documentation for individual cache policies for more info. # This configuration section has an automatic default value. # cache_settings { # } # Configuration option allocation/cache_pool_chunk_size. # The minimal chunk size in KiB for cache pool volumes. # Using a chunk_size that is too large can result in wasteful use of # the cache, where small reads and writes can cause large sections of # an LV to be mapped into the cache. However, choosing a chunk_size # that is too small can result in more overhead trying to manage the # numerous chunks that become mapped into the cache. The former is # more of a problem than the latter in most cases, so the default is # on the smaller end of the spectrum. Supported values range from # 32KiB to 1GiB in multiples of 32. # This configuration option does not have a default value defined. # Configuration option allocation/cache_pool_max_chunks. # The maximum number of chunks in a cache pool. # For cache target v1.9 the recommended maximumm is 1000000 chunks. # Using cache pool with more chunks may degrade cache performance. # This configuration option does not have a default value defined. # Configuration option allocation/thin_pool_metadata_require_separate_pvs. # Thin pool metdata and data will always use different PVs. thin_pool_metadata_require_separate_pvs = 0 # Configuration option allocation/thin_pool_zero. # Thin pool data chunks are zeroed before they are first used. # Zeroing with a larger thin pool chunk size reduces performance. # This configuration option has an automatic default value. # thin_pool_zero = 1 # Configuration option allocation/thin_pool_discards. # The discards behaviour of thin pool volumes. # # Accepted values: # ignore # nopassdown # passdown # # This configuration option has an automatic default value. # thin_pool_discards = "passdown" # Configuration option allocation/thin_pool_chunk_size_policy. # The chunk size calculation policy for thin pool volumes. # # Accepted values: # generic # If thin_pool_chunk_size is defined, use it. Otherwise, calculate # the chunk size based on estimation and device hints exposed in # sysfs - the minimum_io_size. The chunk size is always at least # 64KiB. # performance # If thin_pool_chunk_size is defined, use it. Otherwise, calculate # the chunk size for performance based on device hints exposed in # sysfs - the optimal_io_size. The chunk size is always at least # 512KiB. # # This configuration option has an automatic default value. # thin_pool_chunk_size_policy = "generic" # Configuration option allocation/thin_pool_chunk_size. # The minimal chunk size in KiB for thin pool volumes. # Larger chunk sizes may improve performance for plain thin volumes, # however using them for snapshot volumes is less efficient, as it # consumes more space and takes extra time for copying. When unset, # lvm tries to estimate chunk size starting from 64KiB. Supported # values are in the range 64KiB to 1GiB. # This configuration option does not have a default value defined. # Configuration option allocation/physical_extent_size. # Default physical extent size in KiB to use for new VGs. # This configuration option has an automatic default value. # physical_extent_size = 4096 } # Configuration section log. # How LVM log information is reported. log { # Configuration option log/report_command_log. # Enable or disable LVM log reporting. # If enabled, LVM will collect a log of operations, messages, # per-object return codes with object identification and associated # error numbers (errnos) during LVM command processing. Then the # log is either reported solely or in addition to any existing # reports, depending on LVM command used. If it is a reporting command # (e.g. pvs, vgs, lvs, lvm fullreport), then the log is reported in # addition to any existing reports. Otherwise, there's only log report # on output. For all applicable LVM commands, you can request that # the output has only log report by using --logonly command line # option. Use log/command_log_cols and log/command_log_sort settings # to define fields to display and sort fields for the log report. # You can also use log/command_log_selection to define selection # criteria used each time the log is reported. # This configuration option has an automatic default value. # report_command_log = 0 # Configuration option log/command_log_sort. # List of columns to sort by when reporting command log. # See <lvm command> --logonly --configreport log -o help # for the list of possible fields. # This configuration option has an automatic default value. # command_log_sort = "log_seq_num" # Configuration option log/command_log_cols. # List of columns to report when reporting command log. # See <lvm command> --logonly --configreport log -o help # for the list of possible fields. # This configuration option has an automatic default value. # command_log_cols = "log_seq_num,log_type,log_context,log_object_type,log_object_name,log_object_id,log_object_group,log_object_group_id,log_message,log_errno,log_ret_code" # Configuration option log/command_log_selection. # Selection criteria used when reporting command log. # You can define selection criteria that are applied each # time log is reported. This way, it is possible to control the # amount of log that is displayed on output and you can select # only parts of the log that are important for you. To define # selection criteria, use fields from log report. See also # <lvm command> --logonly --configreport log -S help for the # list of possible fields and selection operators. You can also # define selection criteria for log report on command line directly # using <lvm command> --configreport log -S <selection criteria> # which has precedence over log/command_log_selection setting. # For more information about selection criteria in general, see # lvm(8) man page. # This configuration option has an automatic default value. # command_log_selection = "!(log_type=status && message=success)" # Configuration option log/verbose. # Controls the messages sent to stdout or stderr. verbose = 0 # Configuration option log/silent. # Suppress all non-essential messages from stdout. # This has the same effect as -qq. When enabled, the following commands # still produce output: dumpconfig, lvdisplay, lvmdiskscan, lvs, pvck, # pvdisplay, pvs, version, vgcfgrestore -l, vgdisplay, vgs. # Non-essential messages are shifted from log level 4 to log level 5 # for syslog and lvm2_log_fn purposes. # Any 'yes' or 'no' questions not overridden by other arguments are # suppressed and default to 'no'. silent = 0 # Configuration option log/syslog. # Send log messages through syslog. syslog = 1 # Configuration option log/file. # Write error and debug log messages to a file specified here. # This configuration option does not have a default value defined. # file = "/var/log/lvm2.log" # Configuration option log/overwrite. # Overwrite the log file each time the program is run. overwrite = 0 # Configuration option log/level. # The level of log messages that are sent to the log file or syslog. # There are 6 syslog-like log levels currently in use: 2 to 7 inclusive. # 7 is the most verbose (LOG_DEBUG). level = 0 # Configuration option log/indent. # Indent messages according to their severity. indent = 1 # Configuration option log/command_names. # Display the command name on each line of output. command_names = 0 # Configuration option log/prefix. # A prefix to use before the log message text. # (After the command name, if selected). # Two spaces allows you to see/grep the severity of each message. # To make the messages look similar to the original LVM tools use: # indent = 0, command_names = 1, prefix = " -- " prefix = " " # Configuration option log/activation. # Log messages during activation. # Don't use this in low memory situations (can deadlock). activation = 0 # Configuration option log/debug_classes. # Select log messages by class. # Some debugging messages are assigned to a class and only appear in # debug output if the class is listed here. Classes currently # available: memory, devices, activation, allocation, lvmetad, # metadata, cache, locking, lvmpolld. Use "all" to see everything. debug_classes = [ "memory", "devices", "activation", "allocation", "lvmetad", "metadata", "cache", "locking", "lvmpolld", "dbus" ] } # Configuration section backup. # How LVM metadata is backed up and archived. # In LVM, a 'backup' is a copy of the metadata for the current system, # and an 'archive' contains old metadata configurations. They are # stored in a human readable text format. backup { # Configuration option backup/backup. # Maintain a backup of the current metadata configuration. # Think very hard before turning this off! backup = 1 # Configuration option backup/backup_dir. # Location of the metadata backup files. # Remember to back up this directory regularly! backup_dir = "/etc/lvm/backup" # Configuration option backup/archive. # Maintain an archive of old metadata configurations. # Think very hard before turning this off. archive = 1 # Configuration option backup/archive_dir. # Location of the metdata archive files. # Remember to back up this directory regularly! archive_dir = "/etc/lvm/archive" # Configuration option backup/retain_min. # Minimum number of archives to keep. retain_min = 10 # Configuration option backup/retain_days. # Minimum number of days to keep archive files. retain_days = 30 } # Configuration section shell. # Settings for running LVM in shell (readline) mode. shell { # Configuration option shell/history_size. # Number of lines of history to store in ~/.lvm_history. history_size = 100 } # Configuration section global. # Miscellaneous global LVM settings. global { # Configuration option global/umask. # The file creation mask for any files and directories created. # Interpreted as octal if the first digit is zero. umask = 077 # Configuration option global/test. # No on-disk metadata changes will be made in test mode. # Equivalent to having the -t option on every command. test = 0 # Configuration option global/units. # Default value for --units argument. units = "h" # Configuration option global/si_unit_consistency. # Distinguish between powers of 1024 and 1000 bytes. # The LVM commands distinguish between powers of 1024 bytes, # e.g. KiB, MiB, GiB, and powers of 1000 bytes, e.g. KB, MB, GB. # If scripts depend on the old behaviour, disable this setting # temporarily until they are updated. si_unit_consistency = 1 # Configuration option global/suffix. # Display unit suffix for sizes. # This setting has no effect if the units are in human-readable form # (global/units = "h") in which case the suffix is always displayed. suffix = 1 # Configuration option global/activation. # Enable/disable communication with the kernel device-mapper. # Disable to use the tools to manipulate LVM metadata without # activating any logical volumes. If the device-mapper driver # is not present in the kernel, disabling this should suppress # the error messages. activation = 1 # Configuration option global/fallback_to_lvm1. # Try running LVM1 tools if LVM cannot communicate with DM. # This option only applies to 2.4 kernels and is provided to help # switch between device-mapper kernels and LVM1 kernels. The LVM1 # tools need to be installed with .lvm1 suffices, e.g. vgscan.lvm1. # They will stop working once the lvm2 on-disk metadata format is used. # This configuration option has an automatic default value. # fallback_to_lvm1 = 1 # Configuration option global/format. # The default metadata format that commands should use. # The -M 1|2 option overrides this setting. # # Accepted values: # lvm1 # lvm2 # # This configuration option has an automatic default value. # format = "lvm2" # Configuration option global/format_libraries. # Shared libraries that process different metadata formats. # If support for LVM1 metadata was compiled as a shared library use # format_libraries = "liblvm2format1.so" # This configuration option does not have a default value defined. # Configuration option global/segment_libraries. # This configuration option does not have a default value defined. # Configuration option global/proc. # Location of proc filesystem. # This configuration option is advanced. proc = "/proc" # Configuration option global/etc. # Location of /etc system configuration directory. etc = "/etc" # Configuration option global/locking_type. # Type of locking to use. # # Accepted values: # 0 # Turns off locking. Warning: this risks metadata corruption if # commands run concurrently. # 1 # LVM uses local file-based locking, the standard mode. # 2 # LVM uses the external shared library locking_library. # 3 # LVM uses built-in clustered locking with clvmd. # This is incompatible with lvmetad. If use_lvmetad is enabled, # LVM prints a warning and disables lvmetad use. # 4 # LVM uses read-only locking which forbids any operations that # might change metadata. # 5 # Offers dummy locking for tools that do not need any locks. # You should not need to set this directly; the tools will select # when to use it instead of the configured locking_type. # Do not use lvmetad or the kernel device-mapper driver with this # locking type. It is used by the --readonly option that offers # read-only access to Volume Group metadata that cannot be locked # safely because it belongs to an inaccessible domain and might be # in use, for example a virtual machine image or a disk that is # shared by a clustered machine. # locking_type = 1 # Configuration option global/wait_for_locks. # When disabled, fail if a lock request would block. wait_for_locks = 1 # Configuration option global/fallback_to_clustered_locking. # Attempt to use built-in cluster locking if locking_type 2 fails. # If using external locking (type 2) and initialisation fails, with # this enabled, an attempt will be made to use the built-in clustered # locking. Disable this if using a customised locking_library. fallback_to_clustered_locking = 1 # Configuration option global/fallback_to_local_locking. # Use locking_type 1 (local) if locking_type 2 or 3 fail. # If an attempt to initialise type 2 or type 3 locking failed, perhaps # because cluster components such as clvmd are not running, with this # enabled, an attempt will be made to use local file-based locking # (type 1). If this succeeds, only commands against local VGs will # proceed. VGs marked as clustered will be ignored. fallback_to_local_locking = 1 # Configuration option global/locking_dir. # Directory to use for LVM command file locks. # Local non-LV directory that holds file-based locks while commands are # in progress. A directory like /tmp that may get wiped on reboot is OK. locking_dir = "/run/lock/lvm" # Configuration option global/prioritise_write_locks. # Allow quicker VG write access during high volume read access. # When there are competing read-only and read-write access requests for # a volume group's metadata, instead of always granting the read-only # requests immediately, delay them to allow the read-write requests to # be serviced. Without this setting, write access may be stalled by a # high volume of read-only requests. This option only affects # locking_type 1 viz. local file-based locking. prioritise_write_locks = 1 # Configuration option global/library_dir. # Search this directory first for shared libraries. # This configuration option does not have a default value defined. # Configuration option global/locking_library. # The external locking library to use for locking_type 2. # This configuration option has an automatic default value. # locking_library = "liblvm2clusterlock.so" # Configuration option global/abort_on_internal_errors. # Abort a command that encounters an internal error. # Treat any internal errors as fatal errors, aborting the process that # encountered the internal error. Please only enable for debugging. abort_on_internal_errors = 0 # Configuration option global/detect_internal_vg_cache_corruption. # Internal verification of VG structures. # Check if CRC matches when a parsed VG is used multiple times. This # is useful to catch unexpected changes to cached VG structures. # Please only enable for debugging. detect_internal_vg_cache_corruption = 0 # Configuration option global/metadata_read_only. # No operations that change on-disk metadata are permitted. # Additionally, read-only commands that encounter metadata in need of # repair will still be allowed to proceed exactly as if the repair had # been performed (except for the unchanged vg_seqno). Inappropriate # use could mess up your system, so seek advice first! metadata_read_only = 0 # Configuration option global/mirror_segtype_default. # The segment type used by the short mirroring option -m. # The --type mirror|raid1 option overrides this setting. # # Accepted values: # mirror # The original RAID1 implementation from LVM/DM. It is # characterized by a flexible log solution (core, disk, mirrored), # and by the necessity to block I/O while handling a failure. # There is an inherent race in the dmeventd failure handling logic # with snapshots of devices using this type of RAID1 that in the # worst case could cause a deadlock. (Also see # devices/ignore_lvm_mirrors.) # raid1 # This is a newer RAID1 implementation using the MD RAID1 # personality through device-mapper. It is characterized by a # lack of log options. (A log is always allocated for every # device and they are placed on the same device as the image, # so no separate devices are required.) This mirror # implementation does not require I/O to be blocked while # handling a failure. This mirror implementation is not # cluster-aware and cannot be used in a shared (active/active) # fashion in a cluster. # mirror_segtype_default = "raid1" # Configuration option global/raid10_segtype_default. # The segment type used by the -i -m combination. # The --type raid10|mirror option overrides this setting. # The --stripes/-i and --mirrors/-m options can both be specified # during the creation of a logical volume to use both striping and # mirroring for the LV. There are two different implementations. # # Accepted values: # raid10 # LVM uses MD's RAID10 personality through DM. This is the # preferred option. # mirror # LVM layers the 'mirror' and 'stripe' segment types. The layering # is done by creating a mirror LV on top of striped sub-LVs, # effectively creating a RAID 0+1 array. The layering is suboptimal # in terms of providing redundancy and performance. # raid10_segtype_default = "raid10" # Configuration option global/sparse_segtype_default. # The segment type used by the -V -L combination. # The --type snapshot|thin option overrides this setting. # The combination of -V and -L options creates a sparse LV. There are # two different implementations. # # Accepted values: # snapshot # The original snapshot implementation from LVM/DM. It uses an old # snapshot that mixes data and metadata within a single COW # storage volume and performs poorly when the size of stored data # passes hundreds of MB. # thin # A newer implementation that uses thin provisioning. It has a # bigger minimal chunk size (64KiB) and uses a separate volume for # metadata. It has better performance, especially when more data # is used. It also supports full snapshots. # sparse_segtype_default = "thin" # Configuration option global/lvdisplay_shows_full_device_path. # Enable this to reinstate the previous lvdisplay name format. # The default format for displaying LV names in lvdisplay was changed # in version 2.02.89 to show the LV name and path separately. # Previously this was always shown as /dev/vgname/lvname even when that # was never a valid path in the /dev filesystem. # This configuration option has an automatic default value. # lvdisplay_shows_full_device_path = 0 # Configuration option global/use_aio. # Use async I/O when reading and writing devices. # This configuration option has an automatic default value. # use_aio = 1 # Configuration option global/use_lvmetad. # Use lvmetad to cache metadata and reduce disk scanning. # When enabled (and running), lvmetad provides LVM commands with VG # metadata and PV state. LVM commands then avoid reading this # information from disks which can be slow. When disabled (or not # running), LVM commands fall back to scanning disks to obtain VG # metadata. lvmetad is kept updated via udev rules which must be set # up for LVM to work correctly. (The udev rules should be installed # by default.) Without a proper udev setup, changes in the system's # block device configuration will be unknown to LVM, and ignored # until a manual 'pvscan --cache' is run. If lvmetad was running # while use_lvmetad was disabled, it must be stopped, use_lvmetad # enabled, and then started. When using lvmetad, LV activation is # switched to an automatic, event-based mode. In this mode, LVs are # activated based on incoming udev events that inform lvmetad when # PVs appear on the system. When a VG is complete (all PVs present), # it is auto-activated. The auto_activation_volume_list setting # controls which LVs are auto-activated (all by default.) # When lvmetad is updated (automatically by udev events, or directly # by pvscan --cache), devices/filter is ignored and all devices are # scanned by default. lvmetad always keeps unfiltered information # which is provided to LVM commands. Each LVM command then filters # based on devices/filter. This does not apply to other, non-regexp, # filtering settings: component filters such as multipath and MD # are checked during pvscan --cache. To filter a device and prevent # scanning from the LVM system entirely, including lvmetad, use # devices/global_filter. use_lvmetad = 1 # Configuration option global/lvmetad_update_wait_time. # Number of seconds a command will wait for lvmetad update to finish. # After waiting for this period, a command will not use lvmetad, and # will revert to disk scanning. # This configuration option has an automatic default value. # lvmetad_update_wait_time = 10 # Configuration option global/use_lvmlockd. # Use lvmlockd for locking among hosts using LVM on shared storage. # Applicable only if LVM is compiled with lockd support in which # case there is also lvmlockd(8) man page available for more # information. use_lvmlockd = 0 # Configuration option global/lvmlockd_lock_retries. # Retry lvmlockd lock requests this many times. # Applicable only if LVM is compiled with lockd support # This configuration option has an automatic default value. # lvmlockd_lock_retries = 3 # Configuration option global/sanlock_lv_extend. # Size in MiB to extend the internal LV holding sanlock locks. # The internal LV holds locks for each LV in the VG, and after enough # LVs have been created, the internal LV needs to be extended. lvcreate # will automatically extend the internal LV when needed by the amount # specified here. Setting this to 0 disables the automatic extension # and can cause lvcreate to fail. Applicable only if LVM is compiled # with lockd support # This configuration option has an automatic default value. # sanlock_lv_extend = 256 # Configuration option global/thin_check_executable. # The full path to the thin_check command. # LVM uses this command to check that a thin metadata device is in a # usable state. When a thin pool is activated and after it is # deactivated, this command is run. Activation will only proceed if # the command has an exit status of 0. Set to "" to skip this check. # (Not recommended.) Also see thin_check_options. # (See package device-mapper-persistent-data or thin-provisioning-tools) # This configuration option has an automatic default value. # thin_check_executable = "/usr/sbin/thin_check" # Configuration option global/thin_dump_executable. # The full path to the thin_dump command. # LVM uses this command to dump thin pool metadata. # (See package device-mapper-persistent-data or thin-provisioning-tools) # This configuration option has an automatic default value. # thin_dump_executable = "/usr/sbin/thin_dump" # Configuration option global/thin_repair_executable. # The full path to the thin_repair command. # LVM uses this command to repair a thin metadata device if it is in # an unusable state. Also see thin_repair_options. # (See package device-mapper-persistent-data or thin-provisioning-tools) # This configuration option has an automatic default value. # thin_repair_executable = "/usr/sbin/thin_repair" # Configuration option global/thin_check_options. # List of options passed to the thin_check command. # With thin_check version 2.1 or newer you can add the option # --ignore-non-fatal-errors to let it pass through ignorable errors # and fix them later. With thin_check version 3.2 or newer you should # include the option --clear-needs-check-flag. # This configuration option has an automatic default value. # thin_check_options = [ "-q", "--clear-needs-check-flag" ] # Configuration option global/thin_repair_options. # List of options passed to the thin_repair command. # This configuration option has an automatic default value. # thin_repair_options = [ "" ] # Configuration option global/thin_disabled_features. # Features to not use in the thin driver. # This can be helpful for testing, or to avoid using a feature that is # causing problems. Features include: block_size, discards, # discards_non_power_2, external_origin, metadata_resize, # external_origin_extend, error_if_no_space. # # Example # thin_disabled_features = [ "discards", "block_size" ] # # This configuration option does not have a default value defined. # Configuration option global/cache_disabled_features. # Features to not use in the cache driver. # This can be helpful for testing, or to avoid using a feature that is # causing problems. Features include: policy_mq, policy_smq, metadata2. # # Example # cache_disabled_features = [ "policy_smq" ] # # This configuration option does not have a default value defined. # Configuration option global/cache_check_executable. # The full path to the cache_check command. # LVM uses this command to check that a cache metadata device is in a # usable state. When a cached LV is activated and after it is # deactivated, this command is run. Activation will only proceed if the # command has an exit status of 0. Set to "" to skip this check. # (Not recommended.) Also see cache_check_options. # (See package device-mapper-persistent-data or thin-provisioning-tools) # This configuration option has an automatic default value. # cache_check_executable = "/usr/sbin/cache_check" # Configuration option global/cache_dump_executable. # The full path to the cache_dump command. # LVM uses this command to dump cache pool metadata. # (See package device-mapper-persistent-data or thin-provisioning-tools) # This configuration option has an automatic default value. # cache_dump_executable = "/usr/sbin/cache_dump" # Configuration option global/cache_repair_executable. # The full path to the cache_repair command. # LVM uses this command to repair a cache metadata device if it is in # an unusable state. Also see cache_repair_options. # (See package device-mapper-persistent-data or thin-provisioning-tools) # This configuration option has an automatic default value. # cache_repair_executable = "/usr/sbin/cache_repair" # Configuration option global/cache_check_options. # List of options passed to the cache_check command. # With cache_check version 5.0 or newer you should include the option # --clear-needs-check-flag. # This configuration option has an automatic default value. # cache_check_options = [ "-q", "--clear-needs-check-flag" ] # Configuration option global/cache_repair_options. # List of options passed to the cache_repair command. # This configuration option has an automatic default value. # cache_repair_options = [ "" ] # Configuration option global/fsadm_executable. # The full path to the fsadm command. # LVM uses this command to help with lvresize -r operations. # This configuration option has an automatic default value. # fsadm_executable = "/usr/sbin/fsadm" # Configuration option global/system_id_source. # The method LVM uses to set the local system ID. # Volume Groups can also be given a system ID (by vgcreate, vgchange, # or vgimport.) A VG on shared storage devices is accessible only to # the host with a matching system ID. See 'man lvmsystemid' for # information on limitations and correct usage. # # Accepted values: # none # The host has no system ID. # lvmlocal # Obtain the system ID from the system_id setting in the 'local' # section of an lvm configuration file, e.g. lvmlocal.conf. # uname # Set the system ID from the hostname (uname) of the system. # System IDs beginning localhost are not permitted. # machineid # Use the contents of the machine-id file to set the system ID. # Some systems create this file at installation time. # See 'man machine-id' and global/etc. # file # Use the contents of another file (system_id_file) to set the # system ID. # system_id_source = "none" # Configuration option global/system_id_file. # The full path to the file containing a system ID. # This is used when system_id_source is set to 'file'. # Comments starting with the character # are ignored. # This configuration option does not have a default value defined. # Configuration option global/use_lvmpolld. # Use lvmpolld to supervise long running LVM commands. # When enabled, control of long running LVM commands is transferred # from the original LVM command to the lvmpolld daemon. This allows # the operation to continue independent of the original LVM command. # After lvmpolld takes over, the LVM command displays the progress # of the ongoing operation. lvmpolld itself runs LVM commands to # manage the progress of ongoing operations. lvmpolld can be used as # a native systemd service, which allows it to be started on demand, # and to use its own control group. When this option is disabled, LVM # commands will supervise long running operations by forking themselves. # Applicable only if LVM is compiled with lvmpolld support. use_lvmpolld = 1 # Configuration option global/notify_dbus. # Enable D-Bus notification from LVM commands. # When enabled, an LVM command that changes PVs, changes VG metadata, # or changes the activation state of an LV will send a notification. notify_dbus = 1 } # Configuration section activation. activation { # Configuration option activation/checks. # Perform internal checks of libdevmapper operations. # Useful for debugging problems with activation. Some of the checks may # be expensive, so it's best to use this only when there seems to be a # problem. checks = 0 # Configuration option activation/udev_sync. # Use udev notifications to synchronize udev and LVM. # The --nodevsync option overrides this setting. # When disabled, LVM commands will not wait for notifications from # udev, but continue irrespective of any possible udev processing in # the background. Only use this if udev is not running or has rules # that ignore the devices LVM creates. If enabled when udev is not # running, and LVM processes are waiting for udev, run the command # 'dmsetup udevcomplete_all' to wake them up. udev_sync = 1 # Configuration option activation/udev_rules. # Use udev rules to manage LV device nodes and symlinks. # When disabled, LVM will manage the device nodes and symlinks for # active LVs itself. Manual intervention may be required if this # setting is changed while LVs are active. udev_rules = 1 # Configuration option activation/verify_udev_operations. # Use extra checks in LVM to verify udev operations. # This enables additional checks (and if necessary, repairs) on entries # in the device directory after udev has completed processing its # events. Useful for diagnosing problems with LVM/udev interactions. verify_udev_operations = 0 # Configuration option activation/retry_deactivation. # Retry failed LV deactivation. # If LV deactivation fails, LVM will retry for a few seconds before # failing. This may happen because a process run from a quick udev rule # temporarily opened the device. retry_deactivation = 1 # Configuration option activation/missing_stripe_filler. # Method to fill missing stripes when activating an incomplete LV. # Using 'error' will make inaccessible parts of the device return I/O # errors on access. Using 'zero' will return success (and zero) on I/O # You can instead use a device path, in which case, # that device will be used in place of missing stripes. Using anything # other than 'error' with mirrored or snapshotted volumes is likely to # result in data corruption. # This configuration option is advanced. missing_stripe_filler = "error" # Configuration option activation/use_linear_target. # Use the linear target to optimize single stripe LVs. # When disabled, the striped target is used. The linear target is an # optimised version of the striped target that only handles a single # stripe. use_linear_target = 1 # Configuration option activation/reserved_stack. # Stack size in KiB to reserve for use while devices are suspended. # Insufficent reserve risks I/O deadlock during device suspension. reserved_stack = 64 # Configuration option activation/reserved_memory. # Memory size in KiB to reserve for use while devices are suspended. # Insufficent reserve risks I/O deadlock during device suspension. reserved_memory = 8192 # Configuration option activation/process_priority. # Nice value used while devices are suspended. # Use a high priority so that LVs are suspended # for the shortest possible time. process_priority = -18 # Configuration option activation/volume_list. # Only LVs selected by this list are activated. # If this list is defined, an LV is only activated if it matches an # entry in this list. If this list is undefined, it imposes no limits # on LV activation (all are allowed). # # Accepted values: # vgname # The VG name is matched exactly and selects all LVs in the VG. # vgname/lvname # The VG name and LV name are matched exactly and selects the LV. # @tag # Selects an LV if the specified tag matches a tag set on the LV # or VG. # @* # Selects an LV if a tag defined on the host is also set on the LV # or VG. See tags/hosttags. If any host tags exist but volume_list # is not defined, a default single-entry list containing '@*' # is assumed. # # Example # volume_list = [ "vg1", "vg2/lvol1", "@tag1", "@*" ] # # This configuration option does not have a default value defined. # Configuration option activation/auto_activation_volume_list. # Only LVs selected by this list are auto-activated. # This list works like volume_list, but it is used only by # auto-activation commands. It does not apply to direct activation # commands. If this list is defined, an LV is only auto-activated # if it matches an entry in this list. If this list is undefined, it # imposes no limits on LV auto-activation (all are allowed.) If this # list is defined and empty, i.e. "[]", then no LVs are selected for # auto-activation. An LV that is selected by this list for # auto-activation, must also be selected by volume_list (if defined) # before it is activated. Auto-activation is an activation command that # includes the 'a' argument: --activate ay or -a ay. The 'a' (auto) # argument for auto-activation is meant to be used by activation # commands that are run automatically by the system, as opposed to LVM # commands run directly by a user. A user may also use the 'a' flag # directly to perform auto-activation. Also see pvscan(8) for more # information about auto-activation. # # Accepted values: # vgname # The VG name is matched exactly and selects all LVs in the VG. # vgname/lvname # The VG name and LV name are matched exactly and selects the LV. # @tag # Selects an LV if the specified tag matches a tag set on the LV # or VG. # @* # Selects an LV if a tag defined on the host is also set on the LV # or VG. See tags/hosttags. If any host tags exist but volume_list # is not defined, a default single-entry list containing '@*' # is assumed. # # Example # auto_activation_volume_list = [ "vg1", "vg2/lvol1", "@tag1", "@*" ] # # This configuration option does not have a default value defined. # Configuration option activation/read_only_volume_list. # LVs in this list are activated in read-only mode. # If this list is defined, each LV that is to be activated is checked # against this list, and if it matches, it is activated in read-only # mode. This overrides the permission setting stored in the metadata, # e.g. from --permission rw. # # Accepted values: # vgname # The VG name is matched exactly and selects all LVs in the VG. # vgname/lvname # The VG name and LV name are matched exactly and selects the LV. # @tag # Selects an LV if the specified tag matches a tag set on the LV # or VG. # @* # Selects an LV if a tag defined on the host is also set on the LV # or VG. See tags/hosttags. If any host tags exist but volume_list # is not defined, a default single-entry list containing '@*' # is assumed. # # Example # read_only_volume_list = [ "vg1", "vg2/lvol1", "@tag1", "@*" ] # # This configuration option does not have a default value defined. # Configuration option activation/raid_region_size. # Size in KiB of each raid or mirror synchronization region. # The clean/dirty state of data is tracked for each region. # The value is rounded down to a power of two if necessary, and # is ignored if it is not a multiple of the machine memory page size. raid_region_size = 2048 # Configuration option activation/error_when_full. # Return errors if a thin pool runs out of space. # The --errorwhenfull option overrides this setting. # When enabled, writes to thin LVs immediately return an error if the # thin pool is out of data space. When disabled, writes to thin LVs # are queued if the thin pool is out of space, and processed when the # thin pool data space is extended. New thin pools are assigned the # behavior defined here. # This configuration option has an automatic default value. # error_when_full = 0 # Configuration option activation/readahead. # Setting to use when there is no readahead setting in metadata. # # Accepted values: # none # Disable readahead. # auto # Use default value chosen by kernel. # readahead = "auto" # Configuration option activation/raid_fault_policy. # Defines how a device failure in a RAID LV is handled. # This includes LVs that have the following segment types: # raid1, raid4, raid5*, and raid6*. # If a device in the LV fails, the policy determines the steps # performed by dmeventd automatically, and the steps perfomed by the # manual command lvconvert --repair --use-policies. # Automatic handling requires dmeventd to be monitoring the LV. # # Accepted values: # warn # Use the system log to warn the user that a device in the RAID LV # has failed. It is left to the user to run lvconvert --repair # manually to remove or replace the failed device. As long as the # number of failed devices does not exceed the redundancy of the LV # (1 device for raid4/5, 2 for raid6), the LV will remain usable. # allocate # Attempt to use any extra physical volumes in the VG as spares and # replace faulty devices. # raid_fault_policy = "warn" # Configuration option activation/mirror_image_fault_policy. # Defines how a device failure in a 'mirror' LV is handled. # An LV with the 'mirror' segment type is composed of mirror images # (copies) and a mirror log. A disk log ensures that a mirror LV does # not need to be re-synced (all copies made the same) every time a # machine reboots or crashes. If a device in the LV fails, this policy # determines the steps perfomed by dmeventd automatically, and the steps # performed by the manual command lvconvert --repair --use-policies. # Automatic handling requires dmeventd to be monitoring the LV. # # Accepted values: # remove # Simply remove the faulty device and run without it. If the log # device fails, the mirror would convert to using an in-memory log. # This means the mirror will not remember its sync status across # crashes/reboots and the entire mirror will be re-synced. If a # mirror image fails, the mirror will convert to a non-mirrored # device if there is only one remaining good copy. # allocate # Remove the faulty device and try to allocate space on a new # device to be a replacement for the failed device. Using this # policy for the log is fast and maintains the ability to remember # sync state through crashes/reboots. Using this policy for a # mirror device is slow, as it requires the mirror to resynchronize # the devices, but it will preserve the mirror characteristic of # the device. This policy acts like 'remove' if no suitable device # and space can be allocated for the replacement. # allocate_anywhere # Not yet implemented. Useful to place the log device temporarily # on the same physical volume as one of the mirror images. This # policy is not recommended for mirror devices since it would break # the redundant nature of the mirror. This policy acts like # 'remove' if no suitable device and space can be allocated for the # replacement. # mirror_image_fault_policy = "remove" # Configuration option activation/mirror_log_fault_policy. # Defines how a device failure in a 'mirror' log LV is handled. # The mirror_image_fault_policy description for mirrored LVs also # applies to mirrored log LVs. mirror_log_fault_policy = "allocate" # Configuration option activation/snapshot_autoextend_threshold. # Auto-extend a snapshot when its usage exceeds this percent. # Setting this to 100 disables automatic extension. # The minimum value is 50 (a smaller value is treated as 50.) # Also see snapshot_autoextend_percent. # Automatic extension requires dmeventd to be monitoring the LV. # # Example # Using 70% autoextend threshold and 20% autoextend size, when a 1G # snapshot exceeds 700M, it is extended to 1.2G, and when it exceeds # 840M, it is extended to 1.44G: # snapshot_autoextend_threshold = 70 # snapshot_autoextend_threshold = 100 # Configuration option activation/snapshot_autoextend_percent. # Auto-extending a snapshot adds this percent extra space. # The amount of additional space added to a snapshot is this # percent of its current size. # # Example # Using 70% autoextend threshold and 20% autoextend size, when a 1G # snapshot exceeds 700M, it is extended to 1.2G, and when it exceeds # 840M, it is extended to 1.44G: # snapshot_autoextend_percent = 20 # snapshot_autoextend_percent = 20 # Configuration option activation/thin_pool_autoextend_threshold. # Auto-extend a thin pool when its usage exceeds this percent. # Setting this to 100 disables automatic extension. # The minimum value is 50 (a smaller value is treated as 50.) # Also see thin_pool_autoextend_percent. # Automatic extension requires dmeventd to be monitoring the LV. # # Example # Using 70% autoextend threshold and 20% autoextend size, when a 1G # thin pool exceeds 700M, it is extended to 1.2G, and when it exceeds # 840M, it is extended to 1.44G: # thin_pool_autoextend_threshold = 70 # thin_pool_autoextend_threshold = 100 # Configuration option activation/thin_pool_autoextend_percent. # Auto-extending a thin pool adds this percent extra space. # The amount of additional space added to a thin pool is this # percent of its current size. # # Example # Using 70% autoextend threshold and 20% autoextend size, when a 1G # thin pool exceeds 700M, it is extended to 1.2G, and when it exceeds # 840M, it is extended to 1.44G: # thin_pool_autoextend_percent = 20 # thin_pool_autoextend_percent = 20 # Configuration option activation/mlock_filter. # Do not mlock these memory areas. # While activating devices, I/O to devices being (re)configured is # suspended. As a precaution against deadlocks, LVM pins memory it is # using so it is not paged out, and will not require I/O to reread. # Groups of pages that are known not to be accessed during activation # do not need to be pinned into memory. Each string listed in this # setting is compared against each line in /proc/self/maps, and the # pages corresponding to lines that match are not pinned. On some # systems, locale-archive was found to make up over 80% of the memory # used by the process. # # Example # mlock_filter = [ "locale/locale-archive", "gconv/gconv-modules.cache" ] # # This configuration option is advanced. # This configuration option does not have a default value defined. # Configuration option activation/use_mlockall. # Use the old behavior of mlockall to pin all memory. # Prior to version 2.02.62, LVM used mlockall() to pin the whole # process's memory while activating devices. use_mlockall = 0 # Configuration option activation/monitoring. # Monitor LVs that are activated. # The --ignoremonitoring option overrides this setting. # When enabled, LVM will ask dmeventd to monitor activated LVs. monitoring = 1 # Configuration option activation/polling_interval. # Check pvmove or lvconvert progress at this interval (seconds). # When pvmove or lvconvert must wait for the kernel to finish # synchronising or merging data, they check and report progress at # intervals of this number of seconds. If this is set to 0 and there # is only one thing to wait for, there are no progress reports, but # the process is awoken immediately once the operation is complete. polling_interval = 15 # Configuration option activation/auto_set_activation_skip. # Set the activation skip flag on new thin snapshot LVs. # The --setactivationskip option overrides this setting. # An LV can have a persistent 'activation skip' flag. The flag causes # the LV to be skipped during normal activation. The lvchange/vgchange # -K option is required to activate LVs that have the activation skip # flag set. When this setting is enabled, the activation skip flag is # set on new thin snapshot LVs. # This configuration option has an automatic default value. # auto_set_activation_skip = 1 # Configuration option activation/activation_mode. # How LVs with missing devices are activated. # The --activationmode option overrides this setting. # # Accepted values: # complete # Only allow activation of an LV if all of the Physical Volumes it # uses are present. Other PVs in the Volume Group may be missing. # degraded # Like complete, but additionally RAID LVs of segment type raid1, # raid4, raid5, radid6 and raid10 will be activated if there is no # data loss, i.e. they have sufficient redundancy to present the # entire addressable range of the Logical Volume. # partial # Allows the activation of any LV even if a missing or failed PV # could cause data loss with a portion of the LV inaccessible. # This setting should not normally be used, but may sometimes # assist with data recovery. # activation_mode = "degraded" # Configuration option activation/lock_start_list. # Locking is started only for VGs selected by this list. # The rules are the same as those for volume_list. # This configuration option does not have a default value defined. # Configuration option activation/auto_lock_start_list. # Locking is auto-started only for VGs selected by this list. # The rules are the same as those for auto_activation_volume_list. # This configuration option does not have a default value defined. } # Configuration section metadata. # This configuration section has an automatic default value. # metadata { # Configuration option metadata/check_pv_device_sizes. # Check device sizes are not smaller than corresponding PV sizes. # If device size is less than corresponding PV size found in metadata, # there is always a risk of data loss. If this option is set, then LVM # issues a warning message each time it finds that the device size is # less than corresponding PV size. You should not disable this unless # you are absolutely sure about what you are doing! # This configuration option is advanced. # This configuration option has an automatic default value. # check_pv_device_sizes = 1 # Configuration option metadata/record_lvs_history. # When enabled, LVM keeps history records about removed LVs in # metadata. The information that is recorded in metadata for # historical LVs is reduced when compared to original # information kept in metadata for live LVs. Currently, this # feature is supported for thin and thin snapshot LVs only. # This configuration option has an automatic default value. # record_lvs_history = 0 # Configuration option metadata/lvs_history_retention_time. # Retention time in seconds after which a record about individual # historical logical volume is automatically destroyed. # A value of 0 disables this feature. # This configuration option has an automatic default value. # lvs_history_retention_time = 0 # Configuration option metadata/pvmetadatacopies. # Number of copies of metadata to store on each PV. # The --pvmetadatacopies option overrides this setting. # # Accepted values: # 2 # Two copies of the VG metadata are stored on the PV, one at the # front of the PV, and one at the end. # 1 # One copy of VG metadata is stored at the front of the PV. # 0 # No copies of VG metadata are stored on the PV. This may be # useful for VGs containing large numbers of PVs. # # This configuration option is advanced. # This configuration option has an automatic default value. # pvmetadatacopies = 1 # Configuration option metadata/vgmetadatacopies. # Number of copies of metadata to maintain for each VG. # The --vgmetadatacopies option overrides this setting. # If set to a non-zero value, LVM automatically chooses which of the # available metadata areas to use to achieve the requested number of # copies of the VG metadata. If you set a value larger than the the # total number of metadata areas available, then metadata is stored in # them all. The value 0 (unmanaged) disables this automatic management # and allows you to control which metadata areas are used at the # individual PV level using pvchange --metadataignore y|n. # This configuration option has an automatic default value. # vgmetadatacopies = 0 # Configuration option metadata/pvmetadatasize. # Approximate number of sectors to use for each metadata copy. # VGs with large numbers of PVs or LVs, or VGs containing complex LV # structures, may need additional space for VG metadata. The metadata # areas are treated as circular buffers, so unused space becomes filled # with an archive of the most recent previous versions of the metadata. # This configuration option has an automatic default value. # pvmetadatasize = 255 # Configuration option metadata/pvmetadataignore. # Ignore metadata areas on a new PV. # The --metadataignore option overrides this setting. # If metadata areas on a PV are ignored, LVM will not store metadata # in them. # This configuration option is advanced. # This configuration option has an automatic default value. # pvmetadataignore = 0 # Configuration option metadata/stripesize. # This configuration option is advanced. # This configuration option has an automatic default value. # stripesize = 64 # Configuration option metadata/dirs. # Directories holding live copies of text format metadata. # These directories must not be on logical volumes! # It's possible to use LVM with a couple of directories here, # preferably on different (non-LV) filesystems, and with no other # on-disk metadata (pvmetadatacopies = 0). Or this can be in addition # to on-disk metadata areas. The feature was originally added to # simplify testing and is not supported under low memory situations - # the machine could lock up. Never edit any files in these directories # by hand unless you are absolutely sure you know what you are doing! # Use the supplied toolset to make changes (e.g. vgcfgrestore). # # Example # dirs = [ "/etc/lvm/metadata", "/mnt/disk2/lvm/metadata2" ] # # This configuration option is advanced. # This configuration option does not have a default value defined. # } # Configuration section report. # LVM report command output formatting. # This configuration section has an automatic default value. # report { # Configuration option report/output_format. # Format of LVM command's report output. # If there is more than one report per command, then the format # is applied for all reports. You can also change output format # directly on command line using --reportformat option which # has precedence over log/output_format setting. # Accepted values: # basic # Original format with columns and rows. If there is more than # one report per command, each report is prefixed with report's # name for identification. # json # JSON format. # This configuration option has an automatic default value. # output_format = "basic" # Configuration option report/compact_output. # Do not print empty values for all report fields. # If enabled, all fields that don't have a value set for any of the # rows reported are skipped and not printed. Compact output is # applicable only if report/buffered is enabled. If you need to # compact only specified fields, use compact_output=0 and define # report/compact_output_cols configuration setting instead. # This configuration option has an automatic default value. # compact_output = 0 # Configuration option report/compact_output_cols. # Do not print empty values for specified report fields. # If defined, specified fields that don't have a value set for any # of the rows reported are skipped and not printed. Compact output # is applicable only if report/buffered is enabled. If you need to # compact all fields, use compact_output=1 instead in which case # the compact_output_cols setting is then ignored. # This configuration option has an automatic default value. # compact_output_cols = "" # Configuration option report/aligned. # Align columns in report output. # This configuration option has an automatic default value. # aligned = 1 # Configuration option report/buffered. # Buffer report output. # When buffered reporting is used, the report's content is appended # incrementally to include each object being reported until the report # is flushed to output which normally happens at the end of command # execution. Otherwise, if buffering is not used, each object is # reported as soon as its processing is finished. # This configuration option has an automatic default value. # buffered = 1 # Configuration option report/headings. # Show headings for columns on report. # This configuration option has an automatic default value. # headings = 1 # Configuration option report/separator. # A separator to use on report after each field. # This configuration option has an automatic default value. # separator = " " # Configuration option report/list_item_separator. # A separator to use for list items when reported. # This configuration option has an automatic default value. # list_item_separator = "," # Configuration option report/prefixes. # Use a field name prefix for each field reported. # This configuration option has an automatic default value. # prefixes = 0 # Configuration option report/quoted. # Quote field values when using field name prefixes. # This configuration option has an automatic default value. # quoted = 1 # Configuration option report/columns_as_rows. # Output each column as a row. # If set, this also implies report/prefixes=1. # This configuration option has an automatic default value. # columns_as_rows = 0 # Configuration option report/binary_values_as_numeric. # Use binary values 0 or 1 instead of descriptive literal values. # For columns that have exactly two valid values to report # (not counting the 'unknown' value which denotes that the # value could not be determined). # This configuration option has an automatic default value. # binary_values_as_numeric = 0 # Configuration option report/time_format. # Set time format for fields reporting time values. # Format specification is a string which may contain special character # sequences and ordinary character sequences. Ordinary character # sequences are copied verbatim. Each special character sequence is # introduced by the '%' character and such sequence is then # substituted with a value as described below. # # Accepted values: # %a # The abbreviated name of the day of the week according to the # current locale. # %A # The full name of the day of the week according to the current # locale. # %b # The abbreviated month name according to the current locale. # %B # The full month name according to the current locale. # %c # The preferred date and time representation for the current # locale (alt E) # %C # The century number (year/100) as a 2-digit integer. (alt E) # %d # The day of the month as a decimal number (range 01 to 31). # (alt O) # %D # Equivalent to %m/%d/%y. (For Americans only. Americans should # note that in other countries%d/%m/%y is rather common. This # means that in international context this format is ambiguous and # should not be used. # %e # Like %d, the day of the month as a decimal number, but a leading # zero is replaced by a space. (alt O) # %E # Modifier: use alternative local-dependent representation if # available. # %F # Equivalent to %Y-%m-%d (the ISO 8601 date format). # %G # The ISO 8601 week-based year with century as adecimal number. # The 4-digit year corresponding to the ISO week number (see %V). # This has the same format and value as %Y, except that if the # ISO week number belongs to the previous or next year, that year # is used instead. # %g # Like %G, but without century, that is, with a 2-digit year # (00-99). # %h # Equivalent to %b. # %H # The hour as a decimal number using a 24-hour clock # (range 00 to 23). (alt O) # %I # The hour as a decimal number using a 12-hour clock # (range 01 to 12). (alt O) # %j # The day of the year as a decimal number (range 001 to 366). # %k # The hour (24-hour clock) as a decimal number (range 0 to 23); # single digits are preceded by a blank. (See also %H.) # %l # The hour (12-hour clock) as a decimal number (range 1 to 12); # single digits are preceded by a blank. (See also %I.) # %m # The month as a decimal number (range 01 to 12). (alt O) # %M # The minute as a decimal number (range 00 to 59). (alt O) # %O # Modifier: use alternative numeric symbols. # %p # Either "AM" or "PM" according to the given time value, # or the corresponding strings for the current locale. Noon is # treated as "PM" and midnight as "AM". # %P # Like %p but in lowercase: "am" or "pm" or a corresponding # string for the current locale. # %r # The time in a.m. or p.m. notation. In the POSIX locale this is # equivalent to %I:%M:%S %p. # %R # The time in 24-hour notation (%H:%M). For a version including # the seconds, see %T below. # %s # The number of seconds since the Epoch, # 1970-01-01 00:00:00 +0000 (UTC) # %S # The second as a decimal number (range 00 to 60). (The range is # up to 60 to allow for occasional leap seconds.) (alt O) # %t # A tab character. # %T # The time in 24-hour notation (%H:%M:%S). # %u # The day of the week as a decimal, range 1 to 7, Monday being 1. # See also %w. (alt O) # %U # The week number of the current year as a decimal number, # range 00 to 53, starting with the first Sunday as the first # day of week 01. See also %V and %W. (alt O) # %V # The ISO 8601 week number of the current year as a decimal number, # range 01 to 53, where week 1 is the first week that has at least # 4 days in the new year. See also %U and %W. (alt O) # %w # The day of the week as a decimal, range 0 to 6, Sunday being 0. # See also %u. (alt O) # %W # The week number of the current year as a decimal number, # range 00 to 53, starting with the first Monday as the first day # of week 01. (alt O) # %x # The preferred date representation for the current locale without # the time. (alt E) # %X # The preferred time representation for the current locale without # the date. (alt E) # %y # The year as a decimal number without a century (range 00 to 99). # (alt E, alt O) # %Y # The year as a decimal number including the century. (alt E) # %z # The +hhmm or -hhmm numeric timezone (that is, the hour and minute # offset from UTC). # %Z # The timezone name or abbreviation. # %% # A literal '%' character. # # This configuration option has an automatic default value. # time_format = "%Y-%m-%d %T %z" # Configuration option report/devtypes_sort. # List of columns to sort by when reporting 'lvm devtypes' command. # See 'lvm devtypes -o help' for the list of possible fields. # This configuration option has an automatic default value. # devtypes_sort = "devtype_name" # Configuration option report/devtypes_cols. # List of columns to report for 'lvm devtypes' command. # See 'lvm devtypes -o help' for the list of possible fields. # This configuration option has an automatic default value. # devtypes_cols = "devtype_name,devtype_max_partitions,devtype_description" # Configuration option report/devtypes_cols_verbose. # List of columns to report for 'lvm devtypes' command in verbose mode. # See 'lvm devtypes -o help' for the list of possible fields. # This configuration option has an automatic default value. # devtypes_cols_verbose = "devtype_name,devtype_max_partitions,devtype_description" # Configuration option report/lvs_sort. # List of columns to sort by when reporting 'lvs' command. # See 'lvs -o help' for the list of possible fields. # This configuration option has an automatic default value. # lvs_sort = "vg_name,lv_name" # Configuration option report/lvs_cols. # List of columns to report for 'lvs' command. # See 'lvs -o help' for the list of possible fields. # This configuration option has an automatic default value. # lvs_cols = "lv_name,vg_name,lv_attr,lv_size,pool_lv,origin,data_percent,metadata_percent,move_pv,mirror_log,copy_percent,convert_lv" # Configuration option report/lvs_cols_verbose. # List of columns to report for 'lvs' command in verbose mode. # See 'lvs -o help' for the list of possible fields. # This configuration option has an automatic default value. # lvs_cols_verbose = "lv_name,vg_name,seg_count,lv_attr,lv_size,lv_major,lv_minor,lv_kernel_major,lv_kernel_minor,pool_lv,origin,data_percent,metadata_percent,move_pv,copy_percent,mirror_log,convert_lv,lv_uuid,lv_profile" # Configuration option report/vgs_sort. # List of columns to sort by when reporting 'vgs' command. # See 'vgs -o help' for the list of possible fields. # This configuration option has an automatic default value. # vgs_sort = "vg_name" # Configuration option report/vgs_cols. # List of columns to report for 'vgs' command. # See 'vgs -o help' for the list of possible fields. # This configuration option has an automatic default value. # vgs_cols = "vg_name,pv_count,lv_count,snap_count,vg_attr,vg_size,vg_free" # Configuration option report/vgs_cols_verbose. # List of columns to report for 'vgs' command in verbose mode. # See 'vgs -o help' for the list of possible fields. # This configuration option has an automatic default value. # vgs_cols_verbose = "vg_name,vg_attr,vg_extent_size,pv_count,lv_count,snap_count,vg_size,vg_free,vg_uuid,vg_profile" # Configuration option report/pvs_sort. # List of columns to sort by when reporting 'pvs' command. # See 'pvs -o help' for the list of possible fields. # This configuration option has an automatic default value. # pvs_sort = "pv_name" # Configuration option report/pvs_cols. # List of columns to report for 'pvs' command. # See 'pvs -o help' for the list of possible fields. # This configuration option has an automatic default value. # pvs_cols = "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free" # Configuration option report/pvs_cols_verbose. # List of columns to report for 'pvs' command in verbose mode. # See 'pvs -o help' for the list of possible fields. # This configuration option has an automatic default value. # pvs_cols_verbose = "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free,dev_size,pv_uuid" # Configuration option report/segs_sort. # List of columns to sort by when reporting 'lvs --segments' command. # See 'lvs --segments -o help' for the list of possible fields. # This configuration option has an automatic default value. # segs_sort = "vg_name,lv_name,seg_start" # Configuration option report/segs_cols. # List of columns to report for 'lvs --segments' command. # See 'lvs --segments -o help' for the list of possible fields. # This configuration option has an automatic default value. # segs_cols = "lv_name,vg_name,lv_attr,stripes,segtype,seg_size" # Configuration option report/segs_cols_verbose. # List of columns to report for 'lvs --segments' command in verbose mode. # See 'lvs --segments -o help' for the list of possible fields. # This configuration option has an automatic default value. # segs_cols_verbose = "lv_name,vg_name,lv_attr,seg_start,seg_size,stripes,segtype,stripesize,chunksize" # Configuration option report/pvsegs_sort. # List of columns to sort by when reporting 'pvs --segments' command. # See 'pvs --segments -o help' for the list of possible fields. # This configuration option has an automatic default value. # pvsegs_sort = "pv_name,pvseg_start" # Configuration option report/pvsegs_cols. # List of columns to sort by when reporting 'pvs --segments' command. # See 'pvs --segments -o help' for the list of possible fields. # This configuration option has an automatic default value. # pvsegs_cols = "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free,pvseg_start,pvseg_size" # Configuration option report/pvsegs_cols_verbose. # List of columns to sort by when reporting 'pvs --segments' command in verbose mode. # See 'pvs --segments -o help' for the list of possible fields. # This configuration option has an automatic default value. # pvsegs_cols_verbose = "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free,pvseg_start,pvseg_size,lv_name,seg_start_pe,segtype,seg_pe_ranges" # Configuration option report/vgs_cols_full. # List of columns to report for lvm fullreport's 'vgs' subreport. # See 'vgs -o help' for the list of possible fields. # This configuration option has an automatic default value. # vgs_cols_full = "vg_all" # Configuration option report/pvs_cols_full. # List of columns to report for lvm fullreport's 'vgs' subreport. # See 'pvs -o help' for the list of possible fields. # This configuration option has an automatic default value. # pvs_cols_full = "pv_all" # Configuration option report/lvs_cols_full. # List of columns to report for lvm fullreport's 'lvs' subreport. # See 'lvs -o help' for the list of possible fields. # This configuration option has an automatic default value. # lvs_cols_full = "lv_all" # Configuration option report/pvsegs_cols_full. # List of columns to report for lvm fullreport's 'pvseg' subreport. # See 'pvs --segments -o help' for the list of possible fields. # This configuration option has an automatic default value. # pvsegs_cols_full = "pvseg_all,pv_uuid,lv_uuid" # Configuration option report/segs_cols_full. # List of columns to report for lvm fullreport's 'seg' subreport. # See 'lvs --segments -o help' for the list of possible fields. # This configuration option has an automatic default value. # segs_cols_full = "seg_all,lv_uuid" # Configuration option report/vgs_sort_full. # List of columns to sort by when reporting lvm fullreport's 'vgs' subreport. # See 'vgs -o help' for the list of possible fields. # This configuration option has an automatic default value. # vgs_sort_full = "vg_name" # Configuration option report/pvs_sort_full. # List of columns to sort by when reporting lvm fullreport's 'vgs' subreport. # See 'pvs -o help' for the list of possible fields. # This configuration option has an automatic default value. # pvs_sort_full = "pv_name" # Configuration option report/lvs_sort_full. # List of columns to sort by when reporting lvm fullreport's 'lvs' subreport. # See 'lvs -o help' for the list of possible fields. # This configuration option has an automatic default value. # lvs_sort_full = "vg_name,lv_name" # Configuration option report/pvsegs_sort_full. # List of columns to sort by when reporting for lvm fullreport's 'pvseg' subreport. # See 'pvs --segments -o help' for the list of possible fields. # This configuration option has an automatic default value. # pvsegs_sort_full = "pv_uuid,pvseg_start" # Configuration option report/segs_sort_full. # List of columns to sort by when reporting lvm fullreport's 'seg' subreport. # See 'lvs --segments -o help' for the list of possible fields. # This configuration option has an automatic default value. # segs_sort_full = "lv_uuid,seg_start" # Configuration option report/mark_hidden_devices. # Use brackets [] to mark hidden devices. # This configuration option has an automatic default value. # mark_hidden_devices = 1 # Configuration option report/two_word_unknown_device. # Use the two words 'unknown device' in place of '[unknown]'. # This is displayed when the device for a PV is not known. # This configuration option has an automatic default value. # two_word_unknown_device = 0 # } # Configuration section dmeventd. # Settings for the LVM event daemon. dmeventd { # Configuration option dmeventd/mirror_library. # The library dmeventd uses when monitoring a mirror device. # libdevmapper-event-lvm2mirror.so attempts to recover from # failures. It removes failed devices from a volume group and # reconfigures a mirror as necessary. If no mirror library is # provided, mirrors are not monitored through dmeventd. mirror_library = "libdevmapper-event-lvm2mirror.so" # Configuration option dmeventd/raid_library. # This configuration option has an automatic default value. # raid_library = "libdevmapper-event-lvm2raid.so" # Configuration option dmeventd/snapshot_library. # The library dmeventd uses when monitoring a snapshot device. # libdevmapper-event-lvm2snapshot.so monitors the filling of snapshots # and emits a warning through syslog when the usage exceeds 80%. The # warning is repeated when 85%, 90% and 95% of the snapshot is filled. snapshot_library = "libdevmapper-event-lvm2snapshot.so" # Configuration option dmeventd/thin_library. # The library dmeventd uses when monitoring a thin device. # libdevmapper-event-lvm2thin.so monitors the filling of a pool # and emits a warning through syslog when the usage exceeds 80%. The # warning is repeated when 85%, 90% and 95% of the pool is filled. thin_library = "libdevmapper-event-lvm2thin.so" # Configuration option dmeventd/thin_command. # The plugin runs command with each 5% increment when thin-pool data volume # or metadata volume gets above 50%. # Command which starts with 'lvm ' prefix is internal lvm command. # You can write your own handler to customise behaviour in more details. # User handler is specified with the full path starting with '/'. # This configuration option has an automatic default value. # thin_command = "lvm lvextend --use-policies" # Configuration option dmeventd/executable. # The full path to the dmeventd binary. # This configuration option has an automatic default value. # executable = "/usr/sbin/dmeventd" } # Configuration section tags. # Host tag settings. # This configuration section has an automatic default value. # tags { # Configuration option tags/hosttags. # Create a host tag using the machine name. # The machine name is nodename returned by uname(2). # This configuration option has an automatic default value. # hosttags = 0 # Configuration section tags/<tag>. # Replace this subsection name with a custom tag name. # Multiple subsections like this can be created. The '@' prefix for # tags is optional. This subsection can contain host_list, which is a # list of machine names. If the name of the local machine is found in # host_list, then the name of this subsection is used as a tag and is # applied to the local machine as a 'host tag'. If this subsection is # empty (has no host_list), then the subsection name is always applied # as a 'host tag'. # # Example # The host tag foo is given to all hosts, and the host tag # bar is given to the hosts named machine1 and machine2. # tags { foo { } bar { host_list = [ "machine1", "machine2" ] } } # # This configuration section has variable name. # This configuration section has an automatic default value. # tag { # Configuration option tags/<tag>/host_list. # A list of machine names. # These machine names are compared to the nodename returned # by uname(2). If the local machine name matches an entry in # this list, the name of the subsection is applied to the # machine as a 'host tag'. # This configuration option does not have a default value defined. # } # }
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