topic Re: Cluster lock disk in Operating System - HP-UX

Cluster lock disk

khilari — Thu, 03 Sep 2009 13:50:46 GMT

Hi guys, just wondering.
1) how to create a cluster lock disk.
2) How to restore a lock disk.
Thanks

Re: Cluster lock disk

Torsten. — Thu, 03 Sep 2009 13:55:39 GMT

Its defined in the cluster configuration file and applied by cmapplyconf or (in case of a replaced disk) by vgcfgrestore (if the backup contains this information).

Re: Cluster lock disk

Duncan Edmonstone — Thu, 03 Sep 2009 13:56:09 GMT

1) a lock disk is just any disk ina clustered volume group, yyou don't have to specifically "create" one - the cluster lock data is written to the disk when the serviceguard "cmapplyconf" command is run. After the cmapplyconf is run, its good practice to take a vgcfbackup so you have a backup of the cluster lock disk...

2) assuming you did the vgcfgbackup, then a vgcfgrestore will get you the cluster lock data back onto the disk... alternatively you can halt the cluster and re-run cmapplyconf, or I think there is the (unsupported) cminitlock tool as well...

HTH

Duncan

Re: Cluster lock disk

Prashanth.D.S — Fri, 11 Sep 2009 02:05:55 GMT

Hi Khilari,

Below doc explains how to create SG Cluster lock disk...

http://docs-internal-pro.houston.hp.com/en/B3936-90143/ch05s02.html

This article explains how to replace and restore a cluster lock disk.

http://docs.hp.com/en/B3936-90117/ch08s03.html

Best Regards,
Prashanth