LVCHANGE(8)							  LVCHANGE(8)



NAME
       lvchange - change attributes of a logical volume

SYNOPSIS
       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]  [-h/-?/--help] [--ignorelockingfailure]
       [-M/--persistent y/n] [--minor minor] [-P/--partial y/n] [-p/--permis-
       sion  r/w]  [-r/--readahead  ReadAheadSectors] [--refresh] [-t/--test]
       [-v/--verbose] LogicalVolumePath [LogicalVolumePath...]

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

OPTIONS
       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, -ae 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 log-
	      ical volumes. It's only possible	to  change  a  non-contiguous
	      logical volume's allocation policy to contiguous, if all of the
	      allocated physical extents are already contiguous.

       --minor minor
	      Set the minor number.

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

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

       -r, --readahead ReadAheadSectors
	      Change read ahead sector count per logical between 2  and	 120.
	      For compatability with LVM1 only. Ignored by LVM2.

       --refresh
	      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.

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


SEE ALSO
       lvm(8), lvcreate(8), vgchange(8)



Sistina Software UK		  LVM TOOLS			  LVCHANGE(8)

UNIX/Linux commands referenced on this page:

1. lvm
2. at
3. reset
4. make