replacing cluster lock disk in service guard cluster

[Michael Murphy_2]

we have had a lock disk in a service guard cluster go bad (fc10 - hot swappable) - are there any special steps that need to be done since it is a lock disk (it also has data on it)? Does the cluster config files need to be regenerated?
Thanks

[smatador]

Hi,
I suggest you to use the cminitlock, look this recent thread
http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=1321094
Hope it helps

[Vishu]

Hi,

To replace cluster lock disk, you must first have the vgcfgbackup of the VG to which this lock disk belongs. if not, then take it before replacing the disk :-
# vgcfgbackup

After replacing this disk, you can simply restore with the following :-

# vgcfgrestore -n

In case, if you dont have the vgcfgbackup, then you have to then do the following to reinitialize the lock disk replaced :-

cmgetconf, cmcheckconf and cmapplyconf.

cminitlock is a good utility, but not easy to get it.