topic Re: Patching ServiceGuard cluster in Operating System - HP-UX

Patching ServiceGuard cluster

Arun Kesavan — Wed, 23 Jan 2008 18:06:02 GMT

Hi ,

I have to patch 2 node service guard cluster. Can some one give me the best practises for patching the service guard cluster .

OS Version : HP-UX 11.00

Regards
Arun

Re: Patching ServiceGuard cluster

Ivan Krastev — Wed, 23 Jan 2008 18:33:54 GMT

Use the following steps:

1. Create backups on both nodes.
2. Move all packages to node2.
3. Patch node1.
4. Move packages back to node1.
5. Patch node2.

Use swinstall with -p option first to preview what will be installed/skiped and anfter that without -p.

regards,
ivan

Re: Patching ServiceGuard cluster

Geoff Wild — Wed, 23 Jan 2008 19:59:48 GMT

And after, upgrade your OS and SG!

11.00 is no longer supported.

Also add:

cleanup -c 1

prior to patching - to cleanup old patches.

Rgds...Geoff

Re: Patching ServiceGuard cluster

skt_skt — Wed, 23 Jan 2008 23:31:19 GMT

what is the SG version? And what patches(PH*) are you planning to update to?

Re: Patching ServiceGuard cluster

Arun Kesavan — Thu, 24 Jan 2008 14:23:29 GMT

Hi ,

I am not upgrading the OS . I am goign to install Q2 2007 patches .

OS Version : 11.00
SG version:A.11.14

Regards
Arun

Re: Patching ServiceGuard cluster

Geoff Wild — Thu, 24 Jan 2008 15:50:55 GMT

I'm suggesting you upgrade the OS and ServiceGuard.

After all, what's the point of running a Mission Critical Application on unsupported O/S???

Rgds...Geoff

Re: Patching ServiceGuard cluster

Steven E. Protter — Thu, 24 Jan 2008 16:13:05 GMT

Shalom,

Realize your OS is out of support. If you get in trouble HP might choose not to help you.

Unless you are updating serviceguard itself, you can do whats called a rolling upgrade.

Ignite back up both nodes vg00 boot section.

Update one node and boot it.

Then the second.

All you need to be careful of is that your serviceguard services are configured to run on both nodes and a single node can handle the overall system load.

This all assumes you just can't take the whole cluster down and do it that way.

If you are updating serviceguard itself a rolling upgrade won't work.

If the system is important enough for serviceguard high availability, perhaps its important enough to have a supported OS on it as well.

SEP