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LVDISPLAY(8)                         System Manager's Manual                         LVDISPLAY(8)

NAME
       lvdisplay - Display information about a logical volume

SYNOPSIS
       lvdisplay
           [ option_args ]
           [ position_args ]

DESCRIPTION
       lvdisplay shows the attributes of LVs, like size, read/write status, snapshot information,
       etc.

       lvs(8) is a preferred alternative that shows the same information and more, using  a  more
       compact and configurable output format.

USAGE
       lvdisplay
           [ -a|--all ]
           [ -c|--colon ]
           [ -C|--columns ]
           [ -H|--history ]
           [ -m|--maps ]
           [ -o|--options String ]
           [ -O|--sort String ]
           [ -S|--select String ]
           [    --aligned ]
           [    --binary ]
           [    --configreport log|vg|lv|pv|pvseg|seg ]
           [    --foreign ]
           [    --ignorelockingfailure ]
           [    --logonly ]
           [    --noheadings ]
           [    --nosuffix ]
           [    --readonly ]
           [    --reportformat basic|json ]
           [    --segments ]
           [    --separator String ]
           [    --shared ]
           [    --unbuffered ]
           [    --units r|R|h|H|b|B|s|S|k|K|m|M|g|G|t|T|p|P|e|E ]
           [ COMMON_OPTIONS ]
           [ VG|LV|Tag ... ]

       Common options for lvm:
           [ -d|--debug ]
           [ -h|--help ]
           [ -q|--quiet ]
           [ -t|--test ]
           [ -v|--verbose ]
           [ -y|--yes ]
           [    --commandprofile String ]
           [    --config String ]
           [    --driverloaded y|n ]
           [    --lockopt String ]
           [    --longhelp ]
           [    --nolocking ]
           [    --profile String ]
           [    --version ]

OPTIONS
       --aligned
              Use with --separator to align the output columns

       -a|--all
              Show information about internal LVs.  These are components of normal LVs, such as
              mirrors, which are not independently accessible, e.g. not mountable.

       --binary
              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 de-
              notes that the value could not be determined).

       -c|--colon
              Generate colon separated output for easier parsing in scripts or programs.  Also
              see vgs(8) which provides considerably more control over the output.

       -C|--columns
              Display output in columns, the equivalent of vgs(8).  Options listed are the same
              as options given in vgs(8).

       --commandprofile String
              The command profile to use for command configuration.  See lvm.conf(5) for more in-
              formation about profiles.

       --config String
              Config settings for the command. These override lvm.conf settings.  The String arg
              uses the same format as lvm.conf, or may use section/field syntax.  See lvm.conf(5)
              for more information about config.

       --configreport log|vg|lv|pv|pvseg|seg
              See lvmreport(7).

       -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).

       --driverloaded y|n
              If set to no, the command will not attempt to use device-mapper.  For testing and
              debugging.

       --foreign
              Report/display foreign VGs that would otherwise be skipped.  See lvmsystemid(7) for
              more information about foreign VGs.

       -h|--help
              Display help text.

       -H|--history
              Include historical LVs in the output.  (This has no effect unless LVs were removed
              while lvm.conf metadata/record_lvs_history was enabled.

       --ignorelockingfailure
              Allows a command to continue with read-only metadata operations after locking fail-
              ures.

       --lockopt String
              Used to pass options for special cases to lvmlockd.  See lvmlockd(8) for more in-
              formation.

       --logonly
              Suppress command report and display only log report.

       --longhelp
              Display long help text.

       -m|--maps
              Display the mapping of logical extents to PVs and physical extents.  To map physi-
              cal extents to logical extents use: pvs --segments -o+lv_name,seg_start_pe,segtype

       --noheadings
              Suppress the headings line that is normally the first line of output.  Useful if
              grepping the output.

       --nolocking
              Disable locking.

       --nosuffix
              Suppress the suffix on output sizes. Use with --units (except h and H) if process-
              ing the output.

       -o|--options String
              Comma-separated, ordered list of fields to display in columns.  String arg syntax
              is: [+|-|#]Field1[,Field2 ...]  The prefix + will append the specified fields to
              the default fields, - will remove the specified fields from the default fields, and
              # will compact specified fields (removing them when empty for all rows.)  Use -o
              help to view the list of all available fields.  Use separate lists of fields to
              add, remove or compact by repeating the -o option: -o+field1,field2 -o-
              field3,field4 -o#field5.  These lists are evaluated from left to right.  Use field
              name lv_all to view all LV fields, vg_all all VG fields, pv_all all PV fields,
              pvseg_all all PV segment fields, seg_all all LV segment fields, and pvseg_all all
              PV segment columns.  See the lvm.conf report section for more config options.  See
              lvmreport(7) for more information about reporting.

       --profile String
              An alias for --commandprofile or --metadataprofile, depending on the command.

       -q|--quiet ...
              Suppress output and log messages. Overrides --debug and --verbose.  Repeat once to
              also suppress any prompts with answer 'no'.

       --readonly
              Run the command in a special read-only mode which will read on-disk metadata with-
              out needing to take any locks. This can be used to peek inside metadata used by a
              virtual machine image while the virtual machine is running. No attempt will be made
              to communicate with the device-mapper kernel driver, so this option is unable to
              report whether or not LVs are actually in use.

       --reportformat basic|json
              Overrides current output format for reports which is defined globally by the re-
              port/output_format setting in lvm.conf.  basic is the original format with columns
              and rows.  If there is more than one report per command, each report is prefixed
              with the report name for identification. json produces report output in JSON for-
              mat. See lvmreport(7) for more information.

       --segments

       -S|--select String
              Select objects for processing and reporting based on specified criteria.  The cri-
              teria syntax is described by --select help and lvmreport(7).  For reporting com-
              mands, one row is displayed for each object matching the criteria.  See --options
              help for selectable object fields.  Rows can be displayed with an additional "se-
              lected" field (-o selected) showing 1 if the row matches the selection and 0 other-
              wise.  For non-reporting commands which process LVM entities, the selection is used
              to choose items to process.

       --separator String
              String to use to separate each column. Useful if grepping the output.

       --shared
              Report/display shared VGs that would otherwise be skipped when lvmlockd is not be-
              ing used on the host.  See lvmlockd(8) for more information about shared VGs.

       -O|--sort String
              Comma-separated ordered list of columns to sort by. Replaces the default selection.
              Precede any column with - for a reverse sort on that column.

       -t|--test
              Run in test mode. Commands will not update metadata.  This is implemented by dis-
              abling all metadata writing but nevertheless returning success to the calling func-
              tion. 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.

       --unbuffered
              Produce output immediately without sorting or aligning the columns properly.

       --units r|R|h|H|b|B|s|S|k|K|m|M|g|G|t|T|p|P|e|E
              All sizes are output in these units: human-(r)eadable with '<' rounding indicator,
              (h)uman-readable, (b)ytes, (s)ectors, (k)ilobytes, (m)egabytes, (g)igabytes, (t)er-
              abytes, (p)etabytes, (e)xabytes.  Capitalise to use multiples of 1000 (S.I.) in-
              stead of 1024.  Custom units can be specified, e.g. --units 3M.

       -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
       VG
              Volume Group name.  See lvm(8) for valid names.

       LV
              Logical  Volume  name.  See lvm(8) for valid names.  An LV positional arg generally
              includes the VG name and LV name, e.g. VG/LV.

       Tag
              Tag name.  See lvm(8) for information about tag names and using tags in place of  a
              VG, LV or PV.

       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 re-
              fer  to  1024.   The  default input unit is specified by letter, followed by |UNIT.
              UNIT represents other possible input units: bBsSkKmMgGtTpPeE.  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.

SEE ALSO
       lvm(8) lvm.conf(5) lvmconfig(8)

       pvchange(8) pvck(8) pvcreate(8) pvdisplay(8) pvmove(8) pvremove(8) pvresize(8) pvs(8) pvs-
       can(8)

       vgcfgbackup(8)  vgcfgrestore(8)  vgchange(8) vgck(8) vgcreate(8) vgconvert(8) vgdisplay(8)
       vgexport(8) vgextend(8) vgimport(8) vgimportclone(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) lvm2-activation-generator(8) blkdeactivate(8) lvmdump(8)

       dmeventd(8) lvmpolld(8) lvmlockd(8) lvmlockctl(8) cmirrord(8) lvmdbusd(8)

       lvmsystemid(7) lvmreport(7) lvmraid(7) lvmthin(7) lvmcache(7)

Red Hat, Inc.                   LVM TOOLS 2.03.11(2) (2021-01-08)                    LVDISPLAY(8)

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