Provided by: lvm2_2.03.16-1ubuntu1_amd64 bug


       lvresize — Resize a logical volume


       lvresize option_args position_args
           [ option_args ]
           [ position_args ]

           --alloc contiguous|cling|cling_by_tags|normal|anywhere|inherit
        -A|--autobackup y|n
           --commandprofile String
           --config String
           --devices PV
           --devicesfile String
           --driverloaded y|n
        -l|--extents [+|-]Number[PERCENT]
           --journal String
           --lockopt String
           --poolmetadatasize [+]Size[m|UNIT]
           --profile String
           --reportformat basic|json
        -L|--size [+|-]Size[m|UNIT]
        -i|--stripes Number
        -I|--stripesize Size[k|UNIT]
           --type linear|striped|snapshot|raid|mirror|thin|thin-pool|vdo|vdo-pool|cache|


       lvresize resizes an LV in the same way as  lvextend  and  lvreduce.  See  lvextend(8)  and
       lvreduce(8) for more information.

       In  the  usage section below, --size Size can be replaced with --extents Number.  See both
       descriptions the options section.


       Resize an LV by a specified size.

       lvresize -L|--size [+|-]Size[m|UNIT] LV
           [ -l|--extents [+|-]Number[PERCENT] ]
           [ -r|--resizefs ]
           [    --poolmetadatasize [+]Size[m|UNIT] ]
           [ COMMON_OPTIONS ]
           [ PV ... ]


       Resize an LV by specified PV extents.

       lvresize LV PV ...
           [ -r|--resizefs ]
           [ COMMON_OPTIONS ]


       Resize a pool metadata SubLV by a specified size.

       lvresize --poolmetadatasize [+]Size[m|UNIT] LV1
           [ COMMON_OPTIONS ]
           [ PV ... ]

           LV1 types: thinpool


       Common options for command:
           [ -A|--autobackup y|n ]
           [ -f|--force ]
           [ -n|--nofsck ]
           [ -i|--stripes Number ]
           [ -I|--stripesize Size[k|UNIT] ]
           [    --alloc contiguous|cling|cling_by_tags|normal|anywhere|inherit ]
           [    --nosync ]
           [    --noudevsync ]
           [    --reportformat basic|json ]
           [    --type linear|striped|snapshot|raid|mirror|thin|thin-pool|vdo|vdo-pool|cache|
           cache-pool|writecache ]

       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 ]


       --alloc contiguous|cling|cling_by_tags|normal|anywhere|inherit
              Determines  the allocation policy when a command needs to allocate Physical Extents
              (PEs) from the VG. Each VG and LV has an allocation policy  which  can  be  changed
              with  vgchange/lvchange,  or overridden on the command line.  normal applies common
              sense rules such as not placing parallel stripes on the same PV.   inherit  applies
              the VG policy to an LV.  contiguous requires new PEs be placed adjacent to existing
              PEs.  cling places new PEs on the same PV as existing PEs in the same stripe of the
              LV.   If  there are sufficient PEs for an allocation, but normal does not use them,
              anywhere will use them even if it reduces performance, e.g. by placing two  stripes
              on  the  same PV.  Optional positional PV args on the command line can also be used
              to limit which PVs the command will  use  for  allocation.   See  lvm(8)  for  more
              information about allocation.

       -A|--autobackup y|n
              Specifies  if  metadata should be backed up automatically after a change.  Enabling
              this is strongly advised! See vgcfgbackup(8) for more information.

       --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

       -l|--extents [+|-]Number[PERCENT]
              Specifies  the  new  size  of  the LV in logical extents.  The --size and --extents
              options are alternate methods of specifying size.  The  total  number  of  physical
              extents  used  will  be  greater when redundant data is needed for RAID levels.  An
              alternate syntax allows the size to be determined indirectly as a percentage of the
              size  of  a related VG, LV, or set of PVs. The suffix %VG denotes the total size of
              the VG, the suffix %FREE the remaining free space in the VG, and  the  suffix  %PVS
              the  free space in the specified PVs.  For a snapshot, the size can be expressed as
              a percentage of the total size of the origin LV with the suffix %ORIGIN (100%ORIGIN
              provides  space  for  the  whole origin).  When expressed as a percentage, the size
              defines an upper limit for the number of logical extents in the new LV. The precise
              number  of  logical  extents  in the new LV is not determined until the command has
              completed.  When the plus + or minus - prefix is used, the value is not an absolute
              size, but is relative and added or subtracted from the current size.

       -f|--force ...
              Override various checks, confirmations and protections.  Use with extreme caution.

              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.

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

              Display long help text.

              Do not perform fsck before resizing filesystem when filesystem requires it. You may
              need to use --force to proceed with this option.

              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.

              Disable locking. Use  with  caution,  concurrent  commands  may  produce  incorrect

              Causes  the  creation of mirror, raid1, raid4, raid5 and raid10 to skip the initial
              synchronization. In case of mirror, raid1 and raid10, any data  written  afterwards
              will  be  mirrored,  but the original contents will not be copied. In case of raid4
              and raid5, no parity blocks will be written, though  any  data  written  afterwards
              will  cause  parity blocks to be stored.  This is useful for skipping a potentially
              long and resource intensive initial sync of an empty  mirror/raid1/raid4/raid5  and
              raid10  LV.   This  option  is  not valid for raid6, because raid6 relies on proper
              parity (P and Q Syndromes) being created during initial synchronization in order to
              reconstruct  proper  user date in case of device failures.  raid0 and raid0_meta do
              not provide any data copies or parity support  and  thus  do  not  support  initial

              Disables  udev  synchronisation.  The  process  will not wait for notification from
              udev. It will  continue  irrespective  of  any  possible  udev  processing  in  the
              background.  Only  use  this  if  udev  is not running or has rules that ignore the
              devices LVM creates.

       --poolmetadatasize [+]Size[m|UNIT]
              Specifies the new size of the pool metadata LV.  The plus prefix + can be used,  in
              which case the value is added to the current size.

       --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'.

       --reportformat basic|json
              Overrides current output format for  reports  which  is  defined  globally  by  the
              report/output_format  setting  in  lvm.conf(5).   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.

              Resize underlying filesystem together with the LV using fsadm(8).

       -L|--size [+|-]Size[m|UNIT]
              Specifies the new size of the LV.  The --size and --extents options  are  alternate
              methods  of  specifying  size.   The  total number of physical extents used will be
              greater when redundant data is needed for RAID levels.  When the plus + or minus  -
              prefix  is  used,  the  value is not an absolute size, but is relative and added or
              subtracted from the current size.

       -i|--stripes Number
              Specifies the number of stripes in  a  striped  LV.  This  is  the  number  of  PVs
              (devices)  that  a striped LV is spread across. Data that appears sequential in the
              LV  is  spread  across  multiple  devices  in  units  of  the  stripe   size   (see
              --stripesize).  This  does not change existing allocated space, but only applies to
              space being allocated by the command.  When creating a RAID 4/5/6 LV,  this  number
              does not include the extra devices that are required for parity. The largest number
              depends on the RAID type (raid0: 64, raid10: 32, raid4/5: 63, raid6: 62), and  when
              unspecified, the default depends on the RAID type (raid0: 2, raid10: 2, raid4/5: 3,
              raid6: 5.)  To stripe a new raid LV across all  PVs  by  default,  see  lvm.conf(5)

       -I|--stripesize Size[k|UNIT]
              The  amount  of  data  that is written to one device before moving to the next in a
              striped LV.

              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.

       --type linear|striped|snapshot|raid|mirror|thin|thin-pool|vdo|vdo-pool|cache|cache-pool|
              The LV type, also known as "segment type" or "segtype".  See usage descriptions for
              the  specific  ways  to use these types.  For more information about redundancy and
              performance  (raid<N>,  mirror,  striped,  linear)  see   lvmraid(7).    For   thin
              provisioning  (thin,  thin-pool)  see  lvmthin(7).  For performance caching (cache,
              cache-pool) see lvmcache(7).  For  copy-on-write  snapshots  (snapshot)  see  usage
              definitions.   For VDO (vdo) see lvmvdo(7).  Several commands omit an explicit type
              option because  the  type  is  inferred  from  other  options  or  shortcuts  (e.g.
              --stripes,  --mirrors,  --snapshot,  --virtualsize,  --thin,  --cache, --vdo).  Use
              inferred types with care because it can lead to unexpected results.

       -v|--verbose ...
              Set verbose level. Repeat from 1 to 4 times to increase the detail of messages sent
              to stdout and stderr.

              Display version information.

              Do  not prompt for confirmation interactively but always assume the answer yes. Use
              with extreme caution.  (For automatic no, see -qq.)


       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.  LV1 indicates the LV must have a
              specific type, where the accepted LV types are  listed.  (raid  represents  raid<N>

       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 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.)


       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.


       Extend an LV by 16MB using specific physical extents.
       lvresize -L+16M vg1/lv1 /dev/sda:0-1 /dev/sdb:0-1

       Resize an LV to use 50% of the size volume group.
       lvresize -l50%VG vg1/lv1


       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),

       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)