redhat man page for pvchange

PVCHANGE(8)						      System Manager's Manual						       PVCHANGE(8)

NAME
       pvchange - change attributes of a physical volume

SYNOPSIS
       pvchange [-A|--autobackup {y|n}] [-d|--debug] [-h|--help] [-v|--verbose] [-a|--all] [-x|--allocation {y|n}] [PhysicalVolumePath...]

DESCRIPTION
       pvchange allows you to change the allocation permissions of one or more physical volumes.

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

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

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

       -v, --verbose
	      Gives verbose runtime information about pvchange's activities.

       -a, --all
	      If PhysicalVolumePath is not specified on the command line all physical volumes are searched for and used.

       -x, --allocation y/n
	      Enable or disable allocation of physical extents on this physical volume.

Example
       "pvchange -x n /dev/sdk1" disallows the allocation of physical extents on this physical volume (possibly because of disk errors, or because
       it will be removed after freeing it.

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

       1  no physical volume name(s) on command line
       2  no physical volume names found
       3  error changing physical volume in kernel
       4  error writing physical volume

       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

ENVIRONMENT VARIABLES
       LVM_AUTOBACKUP
	      If this variable is set to "no" then the automatic backup of VG metadata is turned off.

       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), pvcreate(8), pvmove(8)

AUTHOR
       Heinz Mauelshagen <Linux-LVM@Sistina.com>

Heinz Mauelshagen						     LVM TOOLS							       PVCHANGE(8)