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pvmove



SYNOPSIS

       pvmove  [-A|--autobackup{y|n}]  [-d|--debug]  [-f|--force]
       [-h|--help]     [-i|--ignore_read_errors]      [-t|--test]
       [-v[v]|--verbose    [--verbose]]   [{-n|--name}LogicalVol­
       ume[:LogicalExtent[-LE]...]]  SourcePhysicalVolume[:Physi­
       calExtent[-PE]...]                [DestinationPhysicalVol­
       ume[:PE[-PE]...]...]


DESCRIPTION

       pvmove allows you to move the allocated  physical  extents
       (PEs)  on SourcePhysicalVolume to one or more other physi­
       cal volumes (PVs).  You can optionally select a subset  of
       the  allocated physical extents on SourcePhysicalVolume by
       giving colon-separated lists  and/or  ranges  of  physical
       extents, or by specifying the source LogicalVolume option­
       ally with colon-separated lists and/or ranges  of  logical
       extents.   In  this  case  only these extents are moved to
       free (or  specified)  extents  on  DestinationPhysicalVol­
       ume(s).   If no DestinationPhysicalVolume is specifed, the
       normal allocation rules for the volume group are used.

       You can move physical extents in use  but  make  sure  you
       have  an  current  backup  in case of a system crash while
       moving!!!

       pvmove may be safely interrupted by  SIGINT  while  moving
       "next  free"  allocated  logical volumes.  Striped logical
       volume moves can't be interrupted by SIGINT  because  that
       may cause stripe inconsistencies.

   OPTIONS
       -A, --autobackup {y|n}
              Controls  automatic backup of VG metadata after the
              move (see vgcfgbackup (8)).  Default is yes.

       -d, --debug
              Enables additional debugging  output  (if  compiled
              with DEBUG).

       -f, --force
              Forces physical extent move without confirmation.

       -h, --help
              Print  a  usage message on standard output and exit
              successfully.

       -i, --ignore_read_errors
              Ignore read errors while moving  data.  Usefull  in
              case  data is moved away from a broken or unaccess­
              able disk (area).

       -n,    --name     LogicalVolume[:LogicalExtent[-LogicalEx­


EXAMPLES

       To  move  all  logical  extents  of any logical volumes on
       /dev/hda4 to free physical extents elsewhere in the volume
       group, giving verbose runtime information, use:

            pvmove -v /dev/hda4

       To  move  three  logical  extents (numbers 3, 5 and 11) of
       logical volume my_lv to free ones on /dev/hdb3 use:

            pvmove -n my_lv:3:5:11 /dev/sdb6 /dev/hdb3

       To move four logical extents (numbers 1, 25, 26,  and  27)
       of  logical  volume  my_lv  on  /dev/sdb6 to four physical
       extents (numbers 46, 47, 48, and 49) on /dev/hdb3 use:

            pvmove -n my_lv:1:25-27 /dev/sdb6 /dev/hdb3:46-49


DIAGNOSTICS

       pvmove returns an exit code of 0 for success and >  0  for
       error:

       1  no source physical volume on command line
       2  invalid extent numbers on command line
       2  invalid source physical volume name
       4  error reading physical volume
       5  source physical volume is inconsistent
       6  volume group doesn't exist
       7  error reading VGDA
       8  volume group is inconsistent
       9  error getting index of physical volume
       10 no logical volumes on source physical volume
       12 invalid logical volume name
       13 error getting logical volume number in VGDA
       14 logical volume not on source physical volume
       15 malloc() error
       16 invalid physical volume name
       17 physical volume doesn't belong to this volume group
       18 more than one physical volume with destination physical extents given
       19 error getting index of logical volume from VGDA
       20 invalid logical extent given
       21 invalid physical extent given
       22 destination physical index in use
       23 error moving physical extent(s)

       95 driver/module not in kernel
       96 invalid I/O protocol version
       97 error locking logical volume manager
       98 invalid lvmtab (run vgscan(8))
       99 invalid command line

       LVM_VG_MAX_BACKUPS
              This  variable  determines the backup history depth
              of kept VGDA copy files in /etc/lvmconf.  It can be
              set  to  a  positive number between 0 and 999.  The
              higher this number is, the  more  changes  you  can
              restore using vgcfgrestore(8).


SEE ALSO

       lvm(8),  lvchange(8),  lvcreate(8),  lvdisplay(8),  pvdis­
       play(8)


AUTHOR

       Heinz Mauelshagen <Linux-LVM@Sistina.com>

Heinz Mauelshagen           LVM TOOLS                   PVMOVE(8)
  




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