forked from brl/citadel
Bruce Leidl
7bf4c57437
This is now found in a separate package called systemd-extra-utils Some related recipes have been updated: * libblockdev 2.24 * cryptsetup 2.3.4 * lvm 2.03.06
327 lines
12 KiB
Plaintext
327 lines
12 KiB
Plaintext
# This is an example configuration file for the LVM2 system.
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# It contains the default settings that would be used if there was no
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# /etc/lvm/lvm.conf file.
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#
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# Refer to 'man lvm.conf' for further information including the file layout.
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#
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# To put this file in a different directory and override /etc/lvm set
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# the environment variable LVM_SYSTEM_DIR before running the tools.
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# This section allows you to configure which block devices should
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# be used by the LVM system.
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devices {
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# Where do you want your volume groups to appear ?
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dir = "/dev"
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# An array of directories that contain the device nodes you wish
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# to use with LVM2.
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scan = [ "/dev" ]
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# A filter that tells LVM2 to only use a restricted set of devices.
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# The filter consists of an array of regular expressions. These
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# expressions can be delimited by a character of your choice, and
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# prefixed with either an 'a' (for accept) or 'r' (for reject).
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# The first expression found to match a device name determines if
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# the device will be accepted or rejected (ignored). Devices that
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# don't match any patterns are accepted.
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# Be careful if there there are symbolic links or multiple filesystem
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# entries for the same device as each name is checked separately against
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# the list of patterns. The effect is that if any name matches any 'a'
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# pattern, the device is accepted; otherwise if any name matches any 'r'
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# pattern it is rejected; otherwise it is accepted.
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# Don't have more than one filter line active at once: only one gets used.
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# Run vgscan after you change this parameter to ensure that
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# the cache file gets regenerated (see below).
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# If it doesn't do what you expect, check the output of 'vgscan -vvvv'.
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# By default we accept every block device:
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filter = [ "a/.*/" ]
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# Exclude the cdrom drive
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# filter = [ "r|/dev/cdrom|" ]
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# When testing I like to work with just loopback devices:
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# filter = [ "a/loop/", "r/.*/" ]
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# Or maybe all loops and ide drives except hdc:
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# filter =[ "a|loop|", "r|/dev/hdc|", "a|/dev/ide|", "r|.*|" ]
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# Use anchors if you want to be really specific
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# filter = [ "a|^/dev/hda8$|", "r/.*/" ]
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# The results of the filtering are cached on disk to avoid
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# rescanning dud devices (which can take a very long time). By
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# default this cache file is hidden in the /etc/lvm directory.
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# It is safe to delete this file: the tools regenerate it.
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cache = "/etc/lvm/.cache"
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# You can turn off writing this cache file by setting this to 0.
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write_cache_state = 1
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# Advanced settings.
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# List of pairs of additional acceptable block device types found
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# in /proc/devices with maximum (non-zero) number of partitions.
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# types = [ "fd", 16 ]
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# If sysfs is mounted (2.6 kernels) restrict device scanning to
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# the block devices it believes are valid.
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# 1 enables; 0 disables.
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sysfs_scan = 1
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# By default, LVM2 will ignore devices used as components of
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# software RAID (md) devices by looking for md superblocks.
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# 1 enables; 0 disables.
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md_component_detection = 1
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}
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# This section that allows you to configure the nature of the
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# information that LVM2 reports.
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log {
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# Controls the messages sent to stdout or stderr.
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# There are three levels of verbosity, 3 being the most verbose.
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verbose = 0
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# Should we send log messages through syslog?
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# 1 is yes; 0 is no.
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syslog = 1
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# Should we log error and debug messages to a file?
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# By default there is no log file.
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#file = "/var/log/lvm2.log"
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# Should we overwrite the log file each time the program is run?
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# By default we append.
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overwrite = 0
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# What level of log messages should we send to the log file and/or syslog?
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# There are 6 syslog-like log levels currently in use - 2 to 7 inclusive.
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# 7 is the most verbose (LOG_DEBUG).
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level = 0
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# Format of output messages
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# Whether or not (1 or 0) to indent messages according to their severity
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indent = 1
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# Whether or not (1 or 0) to display the command name on each line output
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command_names = 0
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# A prefix to use before the message text (but after the command name,
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# if selected). Default is two spaces, so you can see/grep the severity
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# of each message.
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prefix = " "
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# To make the messages look similar to the original LVM tools use:
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# indent = 0
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# command_names = 1
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# prefix = " -- "
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# Set this if you want log messages during activation.
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# Don't use this in low memory situations (can deadlock).
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# activation = 0
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}
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# Configuration of metadata backups and archiving. In LVM2 when we
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# talk about a 'backup' we mean making a copy of the metadata for the
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# *current* system. The 'archive' contains old metadata configurations.
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# Backups are stored in a human readeable text format.
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backup {
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# Should we maintain a backup of the current metadata configuration ?
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# Use 1 for Yes; 0 for No.
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# Think very hard before turning this off!
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backup = 1
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# Where shall we keep it ?
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# Remember to back up this directory regularly!
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backup_dir = "/etc/lvm/backup"
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# Should we maintain an archive of old metadata configurations.
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# Use 1 for Yes; 0 for No.
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# On by default. Think very hard before turning this off.
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archive = 1
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# Where should archived files go ?
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# Remember to back up this directory regularly!
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archive_dir = "/etc/lvm/archive"
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# What is the minimum number of archive files you wish to keep ?
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retain_min = 10
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# What is the minimum time you wish to keep an archive file for ?
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retain_days = 30
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}
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# Settings for the running LVM2 in shell (readline) mode.
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shell {
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# Number of lines of history to store in ~/.lvm_history
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history_size = 100
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}
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# Miscellaneous global LVM2 settings
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global {
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# The file creation mask for any files and directories created.
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# Interpreted as octal if the first digit is zero.
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umask = 077
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# Allow other users to read the files
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#umask = 022
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# Enabling test mode means that no changes to the on disk metadata
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# will be made. Equivalent to having the -t option on every
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# command. Defaults to off.
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test = 0
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# Whether or not to communicate with the kernel device-mapper.
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# Set to 0 if you want to use the tools to manipulate LVM metadata
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# without activating any logical volumes.
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# If the device-mapper kernel driver is not present in your kernel
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# setting this to 0 should suppress the error messages.
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activation = 1
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# If we can't communicate with device-mapper, should we try running
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# the LVM1 tools?
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# This option only applies to 2.4 kernels and is provided to help you
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# switch between device-mapper kernels and LVM1 kernels.
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# The LVM1 tools need to be installed with .lvm1 suffices
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# e.g. vgscan.lvm1 and they will stop working after you start using
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# the new lvm2 on-disk metadata format.
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# The default value is set when the tools are built.
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# fallback_to_lvm1 = 0
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# The default metadata format that commands should use - "lvm1" or "lvm2".
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# The command line override is -M1 or -M2.
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# Defaults to "lvm1" if compiled in, else "lvm2".
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# format = "lvm1"
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# Location of proc filesystem
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proc = "/proc"
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# Type of locking to use. Defaults to file-based locking (1).
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# Turn locking off by setting to 0 (dangerous: risks metadata corruption
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# if LVM2 commands get run concurrently).
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locking_type = 1
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# Local non-LV directory that holds file-based locks while commands are
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# in progress. A directory like /tmp that may get wiped on reboot is OK.
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locking_dir = "/tmp/lock/lvm"
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# Other entries can go here to allow you to load shared libraries
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# e.g. if support for LVM1 metadata was compiled as a shared library use
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# format_libraries = "liblvm2format1.so"
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# Full pathnames can be given.
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# Search this directory first for shared libraries.
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# library_dir = "/lib"
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}
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activation {
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# Device used in place of missing stripes if activating incomplete volume.
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# For now, you need to set this up yourself first (e.g. with 'dmsetup')
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# For example, you could make it return I/O errors using the 'error'
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# target or make it return zeros.
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missing_stripe_filler = "/dev/ioerror"
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# Size (in KB) of each copy operation when mirroring
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mirror_region_size = 512
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# How much stack (in KB) to reserve for use while devices suspended
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reserved_stack = 256
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# How much memory (in KB) to reserve for use while devices suspended
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reserved_memory = 8192
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# Nice value used while devices suspended
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process_priority = -18
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# If volume_list is defined, each LV is only activated if there is a
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# match against the list.
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# "vgname" and "vgname/lvname" are matched exactly.
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# "@tag" matches any tag set in the LV or VG.
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# "@*" matches if any tag defined on the host is also set in the LV or VG
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#
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# volume_list = [ "vg1", "vg2/lvol1", "@tag1", "@*" ]
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}
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####################
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# Advanced section #
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####################
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# Metadata settings
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#
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# metadata {
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# Default number of copies of metadata to hold on each PV. 0, 1 or 2.
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# You might want to override it from the command line with 0
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# when running pvcreate on new PVs which are to be added to large VGs.
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# pvmetadatacopies = 1
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# Approximate default size of on-disk metadata areas in sectors.
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# You should increase this if you have large volume groups or
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# you want to retain a large on-disk history of your metadata changes.
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# pvmetadatasize = 255
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# List of directories holding live copies of text format metadata.
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# These directories must not be on logical volumes!
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# It's possible to use LVM2 with a couple of directories here,
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# preferably on different (non-LV) filesystems, and with no other
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# on-disk metadata (pvmetadatacopies = 0). Or this can be in
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# addition to on-disk metadata areas.
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# The feature was originally added to simplify testing and is not
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# supported under low memory situations - the machine could lock up.
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#
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# Never edit any files in these directories by hand unless you
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# you are absolutely sure you know what you are doing! Use
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# the supplied toolset to make changes (e.g. vgcfgrestore).
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# dirs = [ "/etc/lvm/metadata", "/mnt/disk2/lvm/metadata2" ]
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#}
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# Event daemon
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#
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dmeventd {
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# mirror_library is the library used when monitoring a mirror device.
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#
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# "libdevmapper-event-lvm2mirror.so" attempts to recover from
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# failures. It removes failed devices from a volume group and
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# reconfigures a mirror as necessary. If no mirror library is
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# provided, mirrors are not monitored through dmeventd.
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mirror_library = "@libdir@/device-mapper/libdevmapper-event-lvm2mirror.so"
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# snapshot_library is the library used when monitoring a snapshot device.
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#
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# "libdevmapper-event-lvm2snapshot.so" monitors the filling of
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# snapshots and emits a warning through syslog when the use of
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# the snapshot exceeds 80%. The warning is repeated when 85%, 90% and
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# 95% of the snapshot is filled.
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snapshot_library = "@libdir@/device-mapper/libdevmapper-event-lvm2snapshot.so"
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# thin_library is the library used when monitoring a thin device.
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#
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# "libdevmapper-event-lvm2thin.so" monitors the filling of
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# pool and emits a warning through syslog when the use of
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# the pool exceeds 80%. The warning is repeated when 85%, 90% and
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# 95% of the pool is filled.
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thin_library = "@libdir@/device-mapper/libdevmapper-event-lvm2thin.so"
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# Full path of the dmeventd binary.
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#
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# executable = "@DMEVENTD_PATH@"
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}
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