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

NAME
       lvscan - List all logical volumes in all volume groups
SYNOPSIS
       lvscan option_args
           [ option_args ]
           [ position_args ]
DESCRIPTION
       lvscan  scans  all VGs or all supported LVM block devices in the system
       for LVs. The output consists of one line for each LV indicating whether
       or  not  it is active, a snapshot or origin, the size of the device and
       its allocation policy. Use lvs(8) or lvdisplay(8) to obtain  more  com-
       prehensive information about LVs.
USAGE
       lvscan
           [ -a|--all ]
           [ COMMON_OPTIONS ]
       lvscan --cache
           [ COMMON_OPTIONS ]
           [ LV ... ]
       Common options for command:
           [ -b|--blockdevice ]
           [    --ignorelockingfailure ]
           [    --readonly ]
           [    --reportformat basic|json ]
       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 ]
           [    --profile String ]
           [    --version ]
OPTIONS
       -a|--all
              Show information about internal LVs.  These are components of
              normal LVs, such as mirrors, which are not independently acces-
              sible, e.g. not mountable.
       -b|--blockdevice
              No longer used.
       --cache
              Scan the devices used by an LV and send the metadata to lvmetad.
       --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 set-
              tings.  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.
       -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.
       -h|--help
              Display help text.
       --ignorelockingfailure
              Allows a command to continue with read-only metadata operations
              after locking failures.
       --lockopt String
              Used to pass options for special cases to lvmlockd.  See lvm-
              lockd(8) for more information.
       --longhelp
              Display long help text.
       --profile String
              An alias for --commandprofile or --metadataprofile, depending on
              the command.
       -q|--quiet ...
              Suppress output and log messages. Overrides --debug and --ver-
              bose.  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.  It can also be used to
              peek inside the metadata of clustered VGs when clustered locking
              is not configured or running. No attempt will be made to commu-
              nicate 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 report/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 format. See lvmreport(7) for more information.
       -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
       LV
              Logical Volume name.  See lvm(8) for valid names.  An  LV  posi-
              tional  arg  generally  includes  the  VG name and LV name, e.g.
              VG/LV.
       String
              See the option description for information about the string con-
              tent.
       Size[UNIT]
              Size  is  an  input number that accepts an optional unit.  Input
              units are always treated as base two values, regardless of capi-
              talization,  e.g.  'k'  and 'K' both refer to 1024.  The default
              input unit is specified by letter, followed by |UNIT.  UNIT rep-
              resents  other  possible  input units: bBsSkKmMgGtTpPeE.  b|B is
              bytes, s|S is sectors of 512 bytes, k|K  is  kilobytes,  m|M  is
              megabytes, g|G is gigabytes, t|T is terabytes, p|P is petabytes,
              e|E is exabytes.  (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) pvscan(8)
       vgcfgbackup(8) vgcfgrestore(8) vgchange(8) vgck(8)  vgcreate(8)  vgcon-
       vert(8)  vgdisplay(8)  vgexport(8)  vgextend(8)  vgimport(8)  vgimport-
       clone(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) lvre-
       duce(8) lvremove(8) lvrename(8) lvresize(8) lvs(8) lvscan(8)
       lvm-fullreport(8) lvm-lvpoll(8) lvm2-activation-generator(8) blkdeacti-
       vate(8) lvmdump(8)
       dmeventd(8)  lvmetad(8)  lvmpolld(8) lvmlockd(8) lvmlockctl(8) clvmd(8)
       cmirrord(8) lvmdbusd(8)
       lvmsystemid(7) lvmreport(7) lvmraid(7) lvmthin(7) lvmcache(7)

Red Hat, Inc.      LVM TOOLS 2.02.187(2)-RHEL7 (2020-03-24)          LVSCAN(8)