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..
spare slots to put new ones in that you can boot from
current disks are hdisk0 & hdisk1
If you insert a new disk and run cfgmgr -S does it discover it? Let's refer to these as hdisk100 and 101.
Code:
extendvg rootvg hdisk100 hdisk101
migratepv hdisk0 hdisk100
bosboot -ad hdisk100
bootlist -o -m normal hdisk1 hdisk100 # Just in case we lose the other disk at the wrong moment.
migratepv hdisk1 hdisk101
bosboot -ad hdisk101
bootlist -o -m normal hdisk100 hdisk101
reducevg rootvg hdisk0 hdisk1
I hope that this helps
Robin
Liverpool/Blackburn
UK
---------- Post updated at 03:54 PM ---------- Previous update was at 03:52 PM ----------
Oh great, RAID disks. What do you see as rootvg from AIX then? If it's a single protected disk, then it's all handled by the RAID manager and it's not an AIX question.
There won't be available drive slots on the systems I plan on doing this on. This is why I was hoping it be as easy as swapping out the drives in the array one-by-one.
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