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Full Discussion: importvg question
Operating Systems AIX importvg question Post 302766695 by zaxxon on Tuesday 5th of February 2013 06:53:30 AM
Old 02-05-2013
The VG name is stored in the ODM, not on a disk. On the disk is only the VGDA which has the VGID stored.

You can use the following to read the VGDA before importing it:
Code:
lqueryvg -tcAp <hdisk>

It reads all information about the VGDA directly from the disk.

There is a part starting with "Logical:" which shows the LVs on this disk. The long number is the VGID, at least the part before the dot.

Why do you need to use the VG name from the former disk? To check the contents of the disk you could always import it with any name but a VG name that already exists.

Last edited by zaxxon; 02-05-2013 at 07:59 AM..
 

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volreattach(8)						      System Manager's Manual						    volreattach(8)

NAME
volreattach - Reattaches disk drives that have once again become accessible SYNOPSIS
/usr/sbin/volreattach [-rb] [accessname...] /usr/sbin/volreattach -c accessname OPTIONS
The volreattach utility has the following options: Calls the volrecover utility to attempt to recover stale plexes of any volumes on the failed disk. Performs the reattach operation in the background. Checks whether a reattach is possible. No operation is performed, but the name of the disk group and disk media name at which the disk can be reattached is displayed. DESCRIPTION
The volreattach utility attempts to reattach disks using the same disk group and media names they had before detachment. This operation may be necessary if a disk has a transient failure, or if some disk drivers are unloaded or unloadable when the Logical Storage Manager is started, causing disks to enter the failed state. If the problem is fixed, the volreattach command can be used to reattach the disks without plexes being flagged as stale, as long as the reattach happens before any volumes on the disk are started. The volreattach command is called from the voldiskadm menus as part of disk recovery. The volreattach utility tries to find a disk with a disk group and disk ID matching that of the disk(s) being reattached. If the matching disk is found, the reattach operation may still fail if the original cause (or some other cause) for the disk failure still exists. EXIT CODES
A zero exit status is returned if it is possible to perform a reattach. Otherwise, non-zero is returned. SEE ALSO
volintro(8), voldiskadm(8), volrecover(8) volreattach(8)
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