Index for Section 8

Alphabetical listing for L

lvchange(8)
NAME
  lvchange - Changes the characteristics of a logical volume.

SYNOPSIS
  /usr/sbin/lvchange [-a Availability] [-d Schedule] [-p Permission] [-r
  Relocate] [-s Strict] [-v Verify] LogicalVolumePath

  Although the flags are shown as optional, you must specify at least one.

DESCRIPTION
				     Note

       This command is no longer supported on Digital UNIX systems.
       Features formerly provided by the Logical Volume Manager (LVM)
       are now provided by the Logical Storage Manager (LSM).  Existing
       LVM volumes must be migrated to LSM, using an encapsulation
       process. For information about moving LVM volumes to LSM, see the
       vollvmencap(8) reference page and the manual Logical Storage
       Manager.

  The lvchange command changes the characteristics of a logical volume.	 You
  include the optional command flags and parameters on the command line to
  specify the type and extent of change.  Each current characteristic for a
  logical volume remains in effect until you explicitly change it with the
  corresponding flag.  All flags except the -s flag take effect immediately.
  The change you make with the -s flag takes effect only when new extents are
  allocated using the lvextend command. The LogicalVolumePath parameter must
  be a logical volume name.

FLAGS
  You must specify at least one flag with the lvchange command.

  -a Availability
	    Sets the availability of the logical volume. The Availability
	    parameter is represented by one of the following:

	    y	      Makes a logical volume available; that is, an open of
		      the logical volume will succeed.

	    n	      Makes a logical volume temporarily unavailable; that
		      is, an open of the logical volume will fail.

  -d Schedule
	    Sets the scheduling policy when a logical extent with more than
	    one mirror is written.  The Schedule  parameter is represented by
	    one of the following:

	    p	      Establishes a parallel scheduling policy.

	    s	      Establishes a sequential scheduling policy.  Use this
		      value with care because, in most cases, it leads to
		      performance loss.

  -p Permission
	    Sets the access permission to read-write or read-only.  The
	    Permission parameter is represented by one of the following:

	    w	      Sets the access permission to read-write.

	    r	      Sets the access permission to read-only.

  -r Relocate
	    Sets the bad block relocation policy.  The Relocate parameter is
	    represented by one of the following:

	    y	      Causes bad block relocation to occur.

	    n	      Prevents bad block relocation from occurring.

  -s Strict Determines the strict allocation policy. Mirrors of a logical
	    extent can be allocated to share or not to share the same
	    physical volume. This flag only make sense when the physical
	    volumes (of the volume group that owns the logical volume to be
	    changed) reside on different physical disks. The Strict parameter
	    is represented by one of the following:

	    y	      Sets a strict allocation policy; mirrors of a logical
		      extent can not share the same physical volume.

	    n	      Does not set a strict allocation policy; mirrors of a
		      logical extent can share the same physical volume.

  -v Verify Sets the write-verify state for the logical volume.	 The Verify
	    parameter is represented by one of the following:

	    y	      Causes all writes to the logical volume to be verified
		      with a follow up read.

	    n	      Prevents all writes to the logical volume from being
		      verified with a follow up read.

EXAMPLES
   1.  To change the permission of logical volume lv03, enter:
	    lvchange -p r  /dev/vg01/lv03
       Logical volume lv03 now has read-only permission.

   2.  To change the allocation policy of logical volume lv07, enter:
	    lvchange -s n  /dev/vg01/lv07

FILES
  /usr/sbin/lvchange
	    Specifies the command path.

RELATED INFORMATION
  Commands:  lvcreate(8), lvdisplay(8), lvextend(8)