lvchange

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] [--resync] [-h/-?/--help] [--ignorelock-
       ingfailure] [--ignoremonitoring]	 [--monitor  {y|n}]  [-M/--persistent
       y/n] [--minor minor] [-P/--partial] [-p/--permission r/w] [-r/--reada-
       head ReadAheadSectors|auto|none]	 [--refresh]  [-t/--test]  [-v/--ver-
       bose] 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, -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 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.

       --resync
	      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	 mir-
	      ror_log_fault_policy set in lvm.conf.

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

       -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|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.

       --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)