topic Re: Service Guard in 6 nodes upgrading from HP-UX10.2 to 11.00 in Operating System - HP-UX

Service Guard in 6 nodes upgrading from HP-UX10.2 to 11.00

Tan Tian Ho — Thu, 08 Jul 2004 20:48:18 GMT

Hi,
Need advice if someone can advice, I have 6 nodes in a single cluster that is presently sits in Hp-UX10.20. I am planning to move this up to HP-UX11.00.
Need some advice-
1) Can I use back the existing MAP file
2) What would be the procedure like ?
3) Can one node be upgraded and join in the existing cluster when done ? or what would be the proceudre like ?

Re: Service Guard in 6 nodes upgrading from HP-UX10.2 to 11.00

Shaikh Imran — Fri, 09 Jul 2004 00:08:47 GMT

Hi,
I will try to help you .
Your task is quite complicated and requires a good documentation & lots of studies.
There maybe downtime involved but always there are ways to minimize them.
I think the rolling upgrade is the best
option for you.
Refer the following document for some details of rolling upgrades.

http://docs.hp.com/hpux/onlinedocs/B3936-90079/B3936-90079.html

Regards,

Re: Service Guard in 6 nodes upgrading from HP-UX10.2 to 11.00

Geoff Wild — Fri, 09 Jul 2004 08:01:20 GMT

First, in the interest of support, go to 11i

This will be a fairly major job - some of it depends on your applications. Oracle for instance will require a fresh install and relinking of Oracle Bianries.

Yes, you can use your map files.

How will the procedure look?

You will need to be at SG 11.12 or higher.

6 nodes - remove 1 from cluster, upgrade it, join it back into cluster - any apps you want running on it may not be able to failover to older nodes - until they are upgraded...

Do this fro other nodes, 1 at a time...

Rgds...Geoff

Re: Service Guard in 6 nodes upgrading from HP-UX10.2 to 11.00

Sridhar Bhaskarla — Fri, 09 Jul 2004 09:51:22 GMT

Hi,

I agree with the suggestion to go for 11i. 11.0 will soon be discontinued.

You should be able to perform rolling upgrades. For procedure, consider the section "Rolling UPgrades" in the following document

http://docs.hp.com/hpux/onlinedocs/B3936-90079/B3936-90079.html

This is for ServiceGuard version 11.16, the latest.

While I have done upgrades from 10.20 -> 11.0, I find it much cleaner and easier to cold install the OS, and then configure your applications.

You can use existing map (if you are talking about volume group map files) to import the VGs on 11.0/11i.

-Sri

Re: Service Guard in 6 nodes upgrading from HP-UX10.2 to 11.00

Tan Tian Ho — Sun, 11 Jul 2004 22:30:19 GMT

Please Answer with logical answer as i have stated that it is HP-UX 11 not 11i.
My application runs on HP-UX11.

Re: Service Guard in 6 nodes upgrading from HP-UX10.2 to 11.00

Sridhar Bhaskarla — Sun, 11 Jul 2004 22:37:28 GMT

Hi Tan,

The procedure is same for 11.0 or 11i. In fact in the above document, the example of a rolling upgrade involves upgrade to 11.0.

-Sri

Re: Service Guard in 6 nodes upgrading from HP-UX10.2 to 11.00

Geoff Wild — Mon, 12 Jul 2004 07:29:53 GMT

Yes, as Sridhar says - the procedure is the same for 11.0.

Rgds...Geoff