vgsync.1m (2010 09)

v
vgsync(1M) vgsync(1M)
(Requires Optional HP MirrorDisk/UX Software)
NAME
vgsync - synchronize stale logical volume mirrors in LVM volume groups
SYNOPSIS
/usr/sbin/vgsync
vg_name ...
Remarks
This command requires the installation of the optional HP MirrorDisk/UX software, which is not included
in the standard HP-UX operating system.
If the volume group input arguments belong to a combination of volume groups version 1.0 and 2.0 or
higher, the arguments may not be processed in the order they are listed on the command line.
DESCRIPTION
The
vgsync command synchronizes the physical extents of each mirrored logical volume in the volume
group specified by vg_name .... Synchronization occurs only on the physical extents that are stale mir-
rors of the original logical extent.
The synchronization process can be time consuming, depending on the hardware characteristics and the
amount of data. Unless disabled, the mirrors within a volume group are synchronized automatically
when the volume group is activated by the
vgchange -a y command.
Arguments
vgsync recognizes the following argument:
vg_name The path name of a volume group.
EXTERNAL INFLUENCES
Environment Variables
LANG determines the language in which messages are displayed.
If
LANG is not specified or is null, it defaults to "C" (see lang(5)).
If any internationalization variable contains an invalid setting, all internationalization variables default
to "C" (see environ (5)).
EXAMPLES
Synchronize the mirrors on volume group
/dev/vg04:
vgsync /dev/vg04
WARNINGS
It is not advisable to interrupt a vgsync process.
SEE ALSO
lvsync(1M), vgchange(1M), vgdisplay(1M).
HP-UX 11i Version 3: September 2010 − 1 − Hewlett-Packard Company 1