topic Re: Oracle RAC, SAN extension in Operating System - HP-UX

Oracle RAC, SAN extension

Ignite_2 — Tue, 28 Jul 2009 10:50:35 GMT

Hi,

Can you please advise, how to extend Oracle RAC with new SAN disks. There is Veritas VM used. I also see new disks with ioscan, but need to help with procedure how to add them using VxVM.

Thanks in advance.

Re: Oracle RAC, SAN extension

Duncan Edmonstone — Tue, 28 Jul 2009 11:05:33 GMT

You need to tell us more about the setup...

What OS version?
Are you using SGeRAC - if so which version?
Are you using a cluster filesystem or just raw VxVM volumes?
What version of CVM?
Do you want to add the disks to an existing DG or create a new one? If adding to an existing DG, are you extending existing volumes or creating new ones?

HTH

Duncan

Re: Oracle RAC, SAN extension

Ignite_2 — Tue, 28 Jul 2009 11:08:12 GMT

Hi Duncan,

I just know, that it's Oracle RAC. The disk group already exists, just need to add new disks there. I have never worked with RAC and VxVM. cmviewcl command doesn't work here. If you can suggest some commands, which help you determine more info about system, please tell me. OS version is 11.23.

Re: Oracle RAC, SAN extension

Duncan Edmonstone — Tue, 28 Jul 2009 11:17:30 GMT

well a cmviewcl output would be a good start...

HTH

Duncan

Re: Oracle RAC, SAN extension

Ignite_2 — Tue, 28 Jul 2009 11:21:35 GMT

Yes, I thought so, but this command doesn't work here.

Re: Oracle RAC, SAN extension

Duncan Edmonstone — Tue, 28 Jul 2009 11:39:19 GMT

what does "doesn't work" mean?

You mean you type it and it produces an error? or it can't even find the command?

If cmviewcl doesn't exist in /usr/sbin, that suggests this isn't a Serviceguard cluster at all - if this is then a Veritas cluster, I'm afraid I don't know how that works...

HTH

Duncan

Re: Oracle RAC, SAN extension

Ignite_2 — Tue, 28 Jul 2009 11:42:55 GMT

Hi Duncan,

Yes, this command doesn't even exist on servers.

Re: Oracle RAC, SAN extension

Duncan Edmonstone — Tue, 28 Jul 2009 11:55:27 GMT

Then I'm unlikely to know what to do...

Someone might pop up who knows the Veritas only tools, but you might want to post the query on the Symantec/Veritas forums here:

http://www.symantec.com/connect/storage-management/forums/storage-foundation

HTH

Duncan

Re: Oracle RAC, SAN extension

Vishu — Tue, 28 Jul 2009 14:30:22 GMT

hi ignite,

Can you tell me the output of the following commands

# ps -ef | grep -i had
# hastatus -sum

Just to confirm if it is having Veritas cluster.

Re: Oracle RAC, SAN extension

Ignite_2 — Wed, 29 Jul 2009 05:20:49 GMT

Hi Ranju...

Below are the outputs:

root@hostA:../root #ps -ef | grep -i had
root 3661 1 0 Apr 1 ? 0:00 /opt/VRTSvcs/bin/hashadow
root 26177 24552 0 09:16:25 pts/0 0:00 grep -i had
root 9553 1 0 16:18:53 ? 1:17 /opt/VRTSvcs/bin/had -restart

root@hostA:../root #hastatus -sum

-- SYSTEM STATE
-- System State Frozen

A hostA RUNNING 0
A hostB RUNNING 0

-- GROUP STATE
-- Group System Probed AutoDisabled State

B Oraclegrp hostA Y N ONLINE
B Oraclegrp hostB Y N ONLINE
B cvm hostA Y N ONLINE
B cvm hostB Y N ONLINE
B oradggrp hostA Y N ONLINE
B oradggrp hostB Y N ONLINE