NAME
pvck — Check metadata on physical volumesSYNOPSIS
pvck option_args position_args[ option_args ]
--commandprofile String
--config String
-d|--debug
--devices PV
--devicesfile String
--driverloaded y|n
--dump headers|metadata|metadata_all|metadata_search
-f|--file String
-h|--help
--journal String
--labelsector Number
--lockopt String
--longhelp
--nohints
--nolocking
--profile String
--[pv]metadatacopies 0|1|2
-q|--quiet
--repair
--repairtype pv_header|metadata|label_header
--settings String
-t|--test
-v|--verbose
--version
-y|--yes
DESCRIPTION
pvck checks and repairs LVM metadata on PVs.Dump options
headersRepair options
--repairSettings
The --settings option controls or overrides certain dump or repair behaviors. All offset and size values in settings are in bytes (units are not recognized.) These settings are subject to change. mda_num=1|2USAGE
Check for metadata on a device[ COMMON_OPTIONS ]
—
Check and print LVM headers and metadata on a device
[ -f|--file String ]
[ --settings String ]
[ --[pv]metadatacopies 0|1|2 ]
[ COMMON_OPTIONS ]
—
Repair LVM headers or metadata on a device
[ -f|--file String ]
[ --settings String ]
[ COMMON_OPTIONS ]
—
Repair LVM headers and metadata on a device
[ --settings String ]
[ COMMON_OPTIONS ]
—
Common options for command:
[ --labelsector Number ]
Common options for lvm:
[ -d|--debug ]
[ -h|--help ]
[ -q|--quiet ]
[ -t|--test ]
[ -v|--verbose ]
[ -y|--yes ]
[ --commandprofile String ]
[ --config String ]
[ --devices PV ]
[ --devicesfile String ]
[ --driverloaded y|n ]
[ --journal String ]
[ --lockopt String ]
[ --longhelp ]
[ --nohints ]
[ --nolocking ]
[ --profile String ]
[ --version ]
OPTIONS
--commandprofile
String
The command profile to use for command configuration. See lvm.conf(5) for
more information about profiles.
--config
String
Config settings for the command. These override lvm.conf(5) settings. The
String arg uses the same format as lvm.conf(5), or may use
section/field syntax. See lvm.conf(5) for more information about
config.
-d|--debug
...
Set debug level. Repeat from 1 to 6 times to increase the detail of messages
sent to the log file and/or syslog (if configured).
--devices
PV
Restricts the devices that are visible and accessible to the command. Devices
not listed will appear to be missing. This option can be repeated, or accepts
a comma separated list of devices. This overrides the devices file.
--devicesfile
String
A file listing devices that LVM should use. The file must exist in
/etc/lvm/devices/ and is managed with the lvmdevices(8) command.
This overrides the lvm.conf(5) devices/devicesfile and
devices/use_devicesfile settings.
--driverloaded
y|n
If set to no, the command will not attempt to use device-mapper. For testing and
debugging.
--dump
headers|metadata|metadata_all|metadata_search
Dump headers and metadata from a PV for debugging and repair. Option values
include: headers to print and check LVM headers, metadata to
print or save the current text metadata, metadata_all to list or save
all versions of metadata, metadata_search to list or save all versions
of metadata, searching standard locations in case of damaged headers,
metadata_area to save an entire text metadata area to a file.
-f|--file
String
Metadata file to read or write.
-h|--help
Display help text.
--journal
String
Record information in the systemd journal. This information is in addition to
information enabled by the lvm.conf log/journal setting. command: record
information about the command. output: record the default command output.
debug: record full command debugging.
--labelsector
Number
By default the PV is labelled with an LVM2 identifier in its second sector
(sector 1). This lets you use a different sector near the start of the disk
(between 0 and 3 inclusive - see LABEL_SCAN_SECTORS in the source). Use with
care.
--lockopt
String
Used to pass options for special cases to lvmlockd. See lvmlockd(8) for
more information.
--longhelp
Display long help text.
--nohints
Do not use the hints file to locate devices for PVs. A command may read more
devices to find PVs when hints are not used. The command will still perform
standard hint file invalidation where appropriate.
--nolocking
Disable locking. Use with caution, concurrent commands may produce incorrect
results.
--profile
String
An alias for --commandprofile or --metadataprofile, depending on the
command.
--[pv]metadatacopies
0|1|2
The number of metadata areas to set aside on a PV for storing VG metadata. When
2, one copy of the VG metadata is stored at the front of the PV and a second
copy is stored at the end. When 1, one copy of the VG metadata is stored at
the front of the PV. When 0, no copies of the VG metadata are stored on the
given PV. This may be useful in VGs containing many PVs (this places
limitations on the ability to use vgsplit later.)
-q|--quiet
...
Suppress output and log messages. Overrides --debug and --verbose. Repeat once
to also suppress any prompts with answer 'no'.
--repair
Repair headers and metadata on a PV.
--repairtype
pv_header|metadata|label_header
Repair headers and metadata on a PV. See command description.
--settings
String
Specifies command specific settings in "Key = Value" form. Combine
multiple settings in quotes, or repeat the settings option for each.
-t|--test
Run in test mode. Commands will not update metadata. This is implemented by
disabling all metadata writing but nevertheless returning success to the
calling function. This may lead to unusual error messages in multi-stage
operations if a tool relies on reading back metadata it believes has changed
but hasn't.
-v|--verbose
...
Set verbose level. Repeat from 1 to 4 times to increase the detail of messages
sent to stdout and stderr.
--version
Display version information.
-y|--yes
Do not prompt for confirmation interactively but always assume the answer yes.
Use with extreme caution. (For automatic no, see -qq.)
VARIABLES
- PV
- Physical Volume name, a device path under /dev. For commands managing physical extents, a PV positional arg generally accepts a suffix indicating a range (or multiple ranges) of physical extents (PEs). When the first PE is omitted, it defaults to the start of the device, and when the last PE is omitted it defaults to end. Start and end range (inclusive): PV[:PE-PE]... Start and length range (counting from 0): PV[:PE+PE]...
- String
- See the option description for information about the string content.
- Size[UNIT]
- Size is an input number that accepts an optional unit. Input units are always treated as base two values, regardless of capitalization, e.g. 'k' and 'K' both refer to 1024. The default input unit is specified by letter, followed by |UNIT. UNIT represents other possible input units: b|B is bytes, s|S is sectors of 512 bytes, k|K is KiB, m|M is MiB, g|G is GiB, t|T is TiB, p|P is PiB, e|E is EiB. (This should not be confused with the output control --units, where capital letters mean multiple of 1000.)
ENVIRONMENT VARIABLES
See lvm(8) for information about environment variables used by lvm. For example, LVM_VG_NAME can generally be substituted for a required VG parameter.EXAMPLES
If the partition table is corrupted or lost on /dev/sda, and you suspect there was an LVM partition at approximately 100 MiB, then this area of the disk can be scanned using the --labelsector parameter with a value of 204800 (100 * 1024 * 1024 / 512 = 204800).SEE ALSO
lvm(8), lvm.conf(5), lvmconfig(8), lvmdevices(8), pvchange(8), , pvcreate(8), pvdisplay(8), pvmove(8), pvremove(8), pvresize(8), pvs(8), pvscan(8), vgcfgbackup(8), vgcfgrestore(8), vgchange(8), vgck(8), vgcreate(8), vgconvert(8), vgdisplay(8), vgexport(8), vgextend(8), vgimport(8), vgimportclone(8), vgimportdevices(8), vgmerge(8), vgmknodes(8), vgreduce(8), vgremove(8), vgrename(8), vgs(8), vgscan(8), vgsplit(8), lvcreate(8), lvchange(8), lvconvert(8), lvdisplay(8), lvextend(8), lvreduce(8), lvremove(8), lvrename(8), lvresize(8), lvs(8), lvscan(8), lvm-fullreport(8), lvm-lvpoll(8), blkdeactivate(8), lvmdump(8), dmeventd(8), lvmpolld(8), lvmlockd(8), lvmlockctl(8), cmirrord(8), lvmdbusd(8), fsadm(8), lvmsystemid(7), lvmreport(7), lvmraid(7), lvmthin(7), lvmcache(7)LVM TOOLS 2.03.16(2) (2022-05-18) | Red Hat, Inc. |