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Requires Optional HP MirrorDisk/UX Software
HP-UX 11i Version 3: February 2007

Technical documentation

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vgsync — synchronize stale logical volume mirrors in LVM volume groups


/usr/sbin/vgsync vg_name ...


This command requires the installation of the optional HP MirrorDisk/UX software, which is not included in the standard HP-UX operating system.


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.


vgsync recognizes the following argument:


The path name of a volume group.


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)).


Synchronize the mirrors on volume group /dev/vg04:

vgsync /dev/vg04


It is not advisable to interrupt a vgsync process.

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