LVCHANGE(8)                                                        LVCHANGE(8)

       lvchange - change attributes of a logical volume

       lvchange   [--addtag   Tag]   [-A|--autobackup   y|n]   [-a|--available
       y|n|ey|en|ly|ln]  [--alloc  AllocationPolicy]   [-C|--contiguous   y|n]
       [-d|--debug] [--deltag Tag] [--resync] [-h|-?|--help] [--ignorelocking-
       failure] [--ignoremonitoring] [--monitor {y|n}]  [-M|--persistent  y|n]
       [--minor  minor]  [-P|--partial] [-p|--permission r|rw] [-r/--readahead
       ReadAheadSectors|auto|none] [--refresh] [-t|--test] [-v|--verbose] Log-
       icalVolumePath [LogicalVolumePath...]

       lvchange  allows  you  to  change  the  attributes  of a logical volume
       including making them known to the kernel ready for use.

       See lvm for common options.

       -a, --available y|n|ey|en|ly|ln
              Controls the availability of the logical volumes for use.   Com-
              municates  with the kernel device-mapper driver via libdevmapper
              to activate (-ay) or deactivate (-an) the logical volumes.

              If clustered locking is enabled, -aey will activate  exclusively
              on  one  node and -aly will activate only on the local node.  To
              deactivate only on the local node  use  -aln.   Logical  volumes
              with  single-host  snapshots  are  always  activated exclusively
              because they can only be used on one node at once.

       -C, --contiguous y|n
              Tries to set or reset the contiguous allocation policy for logi-
              cal volumes. It's only possible to change a non-contiguous logi-
              cal volume's allocation policy to  contiguous,  if  all  of  the
              allocated physical extents are already contiguous.

              Forces  the  complete  resynchronization of a mirror.  In normal
              circumstances you should not need this option  because  synchro-
              nization  happens  automatically.  Data is read from the primary
              mirror device and copied to the others, so this can take a  con-
              siderable  amount of time - and during this time you are without
              a complete redundant copy of your data.

       --minor minor
              Set the minor number.

       --monitor y|n
              Controls whether or not a mirrored logical volume  is  monitored
              by  dmeventd,  if  it is installed.  If a device used by a moni-
              tored mirror reports  an  I/O  error,  the  failure  is  handled
              according to mirror_image_fault_policy and mirror_log_fault_pol-
              icy set in lvm.conf.

              Make no attempt to interact with dmeventd  unless  --monitor  is
              specified.   Do not use this if dmeventd is already monitoring a

       -M, --persistent y|n
              Set to y to make the minor number specified persistent.

       -p, --permission r|rw
              Change access permission to read-only or read/write.

       -r, --readahead ReadAheadSectors|auto|none
              Set read ahead sector count of this logical volume.  For  volume
              groups  with  metadata  in  lvm1  format,  this  must be a value
              between 2 and 120 sectors.  The default value  is  "auto"  which
              allows  the  kernel  to  choose  a suitable value automatically.
              "None" is equivalent to specifying zero.

              If the logical volume is active, reload its metadata.   This  is
              not  necessary  in  normal operation, but may be useful if some-
              thing has gone wrong or  if  you're  doing  clustering  manually
              without a clustered lock manager.

       "lvchange  -pr  vg00/lvol1"  changes  the permission on volume lvol1 in
       volume group vg00 to be read-only.

       lvm(8), lvcreate(8), vgchange(8)

Sistina Software UK    LVM TOOLS 2.02.44-cvs (02-17-09)            LVCHANGE(8)

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