Upgrading rootvg disks on the fly. Post: 302884763

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Operating Systems AIX Upgrading rootvg disks on the fly. Post 302884763 by acascianelli on Wednesday 22nd of January 2014 10:31:00 AM

01-22-2014

Registered User

Upgrading rootvg disks on the fly.

I'm looking for a way to upgrade disks containing my rootvg volume group on the fly without a reboot.

Currently, rootvg contains 2x74gb drives in RAID 10. What I want to do is swap them out one-by-one with 146gb drives then expand the volume group. I've done this with a test system before, and the new drives are recognized as being the larger capacity but I can't extend the volume group to the extra size. lsvg rootvg still shows the vg as being 74gb.

I've tried simply using 'chvg -g rootvg', but I get the following error...

Code:

# chvg -g rootvg                                                                     
0516-1382 chvg: Volume group is not changed. None of the disks in the                
        volume group have grown in size.                                             
0516-732 chvg: Unable to change volume group rootvg.                                 
#

I can't seem to find a way to extend the actual RAID volume past the original 74gb.

Last edited by acascianelli; 01-22-2014 at 11:39 AM..

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LEARN ABOUT MOJAVE

vgcfgbackup

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

NAME

       vgcfgbackup - backup volume group descriptor area

SYNOPSIS

       vgcfgbackup [-d|--debug] [-f|--file filename] [-h|--help] [--ignorelockingfailure] [-P|--partial] [-v|--verbose] [VolumeGroupName...]

DESCRIPTION

       vgcfgbackup  allows you to backup the metadata of your volume groups.  If you don't name any volume groups on the command line, all of them
       will be backed up.

       In a default installation, each volume group gets backed up into a separate file bearing the name of the  volume  group  in  the  directory
       /etc/lvm/backup.   You can write the backup to an alternative file using -f.  In this case if you are backing up more than one volume group
       the filename is treated as a template, and %s gets replaced by the volume group name.

       NB. This DOESN'T backup user/system data in logical volume(s)!  Backup /etc/lvm regularly too.

OPTIONS

       See lvm for common options.

SEE ALSO

       lvm(8), vgcfgrestore(8)

Sistina Software UK                                      LVM TOOLS 2.02.95(2) (2012-03-06)                                          VGCFGBACKUP(8)

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