Requires Optional HP MirrorDisk/UX Software

NAME

vgsync − synchronize stale logical volume mirrors in LVM volume groups

SYNOPSIS

/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:

vgsync /dev/vg04

WARNINGS

It is not advisable to interrupt a vgsync process. 

SEE ALSO

lvsync(1M), vgchange(1M), vgdisplay(1M). 

Hewlett-Packard Company  —  HP-UX Release 10.20:  July 1996