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RedHat 9 (Linux i386) - man page for vgreduce (redhat section 8)

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VGREDUCE(8)									      VGREDUCE(8)

       vgreduce - reduce a volume group

       vgreduce  [-a|--all]  [-A|--autobackup{y|n}]  [-d|--debug] [-h|--help] [-v|--verbose] Vol-
       umeGroupName [PhysicalVolumePath...]

       vgreduce allows you to remove one or more unused physical volumes from a volume group.

       -a, --all
	      Removes all empty physical volumes if none are given on command line.

       -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 vgreduce's activities.

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

       1  neither volume group name nor physical volume path(s) on command line
       2  invalid volume group name
       3  error checking existence of volume group
       4  volume group must be active
       5  error reading VGDA
       6  volume group is not reducable (see vgchange(8))
       7  no physical volume path(s) on command line
       8  realloc error
       9  malloc error
       10 no empty physical volume to reduce volume group by
       11 error setting up VGDA for reduce
       12 error reducing VGDA in kernel
       13 error writing VGDA to physical volume(s)

       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

	      If  this variable is set to "no" then the automatic backup of VG metadata is turned

	      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), vgextend(8)

       Heinz Mauelshagen <Linux-LVM@Sistina.com>

Heinz Mauelshagen			    LVM TOOLS				      VGREDUCE(8)
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