man vgreduce () - reduce a volume group
NAME
vgreduce - reduce a volume group
SYNOPSIS
vgreduce [-a|--all] [-A|--autobackup{y|n}] [-d|--debug] [-h|--help] [-v|--verbose] VolumeGroupName [PhysicalVolumePath...]
DESCRIPTION
vgreduce allows you to remove one or more unused physical volumes from a volume group.
OPTIONS
- -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.
DIAGNOSTICS
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
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
AUTHOR
Heinz Mauelshagen <Linux-LVM@Sistina.com>