lvdisplay(8) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | USAGE | OPTIONS | VARIABLES | ENVIRONMENT VARIABLES | SEE ALSO | COLOPHON

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

NAME         top

       lvdisplay — Display information about a logical volume

SYNOPSIS         top

       lvdisplay
           [ option_args ]
           [ position_args ]

DESCRIPTION         top

       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         top

       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 ]
           [    --segments ]
           [    --separator String ]
           [    --shared ]
           [    --unbuffered ]
           [    --units [Number]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 ]
           [    --devices PV ]
           [    --devicesfile String ]
           [    --driverloaded y|n ]
           [    --journal String ]
           [    --lockopt String ]
           [    --longhelp ]
           [    --nohints ]
           [    --nolocking ]
           [    --profile String ]
           [    --version ]

OPTIONS         top


       --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 independent‐
              ly accessible, e.g. not mountable.

       --binary
              Use binary values "0" or "1" instead of descriptive liter‐
              al  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).

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

       -C|--columns
              Display  output in columns, the equivalent of vgs(8).  Op‐
              tions 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 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.

       --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).

       --devices PV
              Devices that the command can use. This option can  be  re‐
              peated  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) de‐
              vices/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.

       --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(5)   metada‐
              ta/record_lvs_history was enabled.

       --ignorelockingfailure
              Allows a command to continue with read-only metadata oper‐
              ations after locking failures.

       --journal String
              Record  information in the systemd journal.  This informa‐
              tion 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.

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

       --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 physical 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.

       --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.

       --nosuffix
              Suppress the suffix on output sizes. Use with --units (ex‐
              cept h and H) if processing 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  de‐
              fault  fields, - will remove the specified fields from the
              default fields, and # will compact specified  fields  (re‐
              moving 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  op‐
              tion:  -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(5) report section for more con‐
              fig  options.  See lvmreport(7) for more information about
              reporting.

       --profile String
              An alias for --commandprofile  or  --metadataprofile,  de‐
              pending 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 without 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 at‐
              tempt  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.

       --segments

       -S|--select String
              Select objects for processing and reporting based on spec‐
              ified criteria.  The criteria syntax is described by --se‐
              lect  help  and lvmreport(7).  For reporting commands, one
              row is displayed for each object  matching  the  criteria.
              See --options help for selectable object fields.  Rows can
              be  displayed  with an additional "selected" field (-o se‐
              lected) showing 1 if the row matches the selection  and  0
              otherwise.   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  being  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.  Re‐
              places  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 disabling all metadata writing but  nev‐
              ertheless  returning success to the calling function. This
              may lead to unusual error messages in  multi-stage  opera‐
              tions  if  a  tool  relies on reading back metadata it be‐
              lieves has changed but hasn't.

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

       --units [Number]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)ec‐
              tors,  (k)ilobytes, (m)egabytes, (g)igabytes, (t)erabytes,
              (p)etabytes, (e)xabytes.  Capitalise to use  multiples  of
              1000  (S.I.)  instead of 1024.  Custom units can be speci‐
              fied, 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 au‐
              tomatic no, see -qq.)

VARIABLES         top

       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, regard‐
              less of capitalization, e.g. 'k' and 'K' both refer to
              1024.  The default input unit is specified by letter, fol‐
              lowed 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 con‐
              trol --units, where capital letters mean multiple of
              1000.)

ENVIRONMENT VARIABLES         top

       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         top

       lvm(8), lvm.conf(5), lvmconfig(8), lvmdevices(8),

       pvchange(8), pvck(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), lvmcache(7), lvmraid(7),
       lvmthin(7), lvmvdo(7), lvmautoactivation(7)

COLOPHON         top

       This page is part of the lvm2 (Logical Volume Manager 2) project.
       Information about the project can be found at 
       ⟨http://www.sourceware.org/lvm2/⟩.  If you have a bug report for
       this manual page, see ⟨https://github.com/lvmteam/lvm2/issues⟩.
       This page was obtained from the project's upstream Git repository
       ⟨git://sourceware.org/git/lvm2.git⟩ on 2024-06-14.  (At that
       time, the date of the most recent commit that was found in the
       repository was 2024-06-11.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there
       is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to
       man-pages@man7.org

Red Hat, Inc.     LVM TOOLS 2.03.25(2)-git (2024-05-16)     LVDISPLAY(8)

Pages that refer to this page: lvmcache(7)lvchange(8)lvconvert(8)lvcreate(8)lvdisplay(8)lvextend(8)lvm(8)lvmconfig(8)lvmdevices(8)lvmdiskscan(8)lvm-fullreport(8)lvm-lvpoll(8)lvreduce(8)lvremove(8)lvrename(8)lvresize(8)lvs(8)lvscan(8)pvchange(8)pvck(8)pvcreate(8)pvdisplay(8)pvmove(8)pvremove(8)pvresize(8)pvs(8)pvscan(8)vgcfgbackup(8)vgcfgrestore(8)vgchange(8)vgck(8)vgconvert(8)vgcreate(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)