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replace the root disk to new high capacity disk

 
aneez
Regular Advisor

replace the root disk to new high capacity disk

Hi all

i want to replace the old mirrored root 36Gbx2 disk to new 146gbx2.is it possible to do with mirroring?.is it possible to extend the vg00 after the mirroing with new disk(146)?


i am waiting for your replies
thanks
aneez
3 REPLIES 3
Andrew Rutter
Honored Contributor

Re: replace the root disk to new high capacity disk

Hi Aneez,

No what you want to do isnt possible due to the max pe value created when the system was built, unless of course this was taken into consideration at that time?

The best option would be to do an ignite recovery tape and then you can re build onto a bigger disk, but theres quite a lot of work involved as im sure youre aware.

Andy
Michael Duthie
Trusted Contributor

Re: replace the root disk to new high capacity disk

As suggested above use use Ignite/UX.

download the latest version.

# make_tape_recovery -x inc_entire=vg00

Replace the disks and install from the IUX tape.

The existing data volume groups should be imported at the end of the install.
DCE
Honored Contributor

Re: replace the root disk to new high capacity disk



Yes, you can mirror to the larger disk

BUT, you will most likely not be able to use all of the space on the new disk.

The maximulm usable space on a disk disk is set at VG creation time, and miost people accept the defaults for vg00. That most likely means that usable space on the larger disk is going to be limited to the size of the original vg00 disk size.

You will need to make an ignite image of vg00, and recover vg00 to the new disk. This will allow you to change the parameters on vg00 to recognize and use all of the space on the new disk