topic Re: How to change mirrored root disk in Operating System - Tru64 Unix

How to change mirrored root disk

cocomo — Mon, 20 Oct 2003 20:58:05 GMT

Alpha ES40(OSF 4.0f) internal mirrored root-disk failed.
how to chang?

Re: How to change mirrored root disk

Ralf Puchner — Tue, 21 Oct 2003 02:07:56 GMT

How to replace a failed LSM mirrored system disk :

Solution :

1.) List the LSM configuration
# volprint -Aht

1.) Disassociate ALL plexes linked to the failed disk
e.g.
assume disk rz2 failed
# volplex -o rm dis rootvol-02
# volplex -o rm dis swapvol-02
# volplex -o rm dis usrvol-02
...

2.) Remove the failed disks from the disk group
# voldg -k rmdisk rz2a rz2b rz2g
# voldisk rm rz2a rz2b rz2g

3.) now physically replace the disk rz2

4.) Write a disklabel onto the new disk (e.g. for a rz28 disk type)
# disklabel -rw rz2 rz28

5.) Add the disk to LSM again
# voldiskadd rz2

6.) Mirror the system disk again
# volrootmir -a rz2

Re: How to change mirrored root disk

cocomo — Wed, 22 Oct 2003 20:57:34 GMT

How to do with mylex controller?

Re: How to change mirrored root disk

Ralf Puchner — Fri, 24 Oct 2003 02:06:19 GMT

so must use the controller specific tool (e.g. RCU depend on the mylex modell) to reconfigure the raidset. Have a look into your manual of the controller howto run the controller tool and how to replace a drive.

Re: How to change mirrored root disk

vofsky — Fri, 12 Dec 2003 16:40:31 GMT

Hi Ralf,
Could you give me a hand?I can not exec volsetup command after I loaded os.version of tru64 is 5.1b and I have enter the license lsm_oa.and also I can not exec vloprint,voldiskadm...any advice is appreciated!

Re: How to change mirrored root disk

Michael Schulte zur Sur — Fri, 12 Dec 2003 17:00:18 GMT

Hi vofsky,

it would be better, if you opened a new thread with your problem. You not only get better attention, you will be also able to honor answers that helped you by awarding points.

greetings,

Michael