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.
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 mirrors 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:
WARNINGS
It is not advisable to interrupt a
vgsync
process.
