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Oracle RAC, SAN extension

Ignite_2
Frequent Advisor

Oracle RAC, SAN extension

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.
9 REPLIES
Duncan Edmonstone
Honored Contributor

Re: Oracle RAC, SAN extension

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

HTH

Duncan
Ignite_2
Frequent Advisor

Re: Oracle RAC, SAN extension

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.
Duncan Edmonstone
Honored Contributor

Re: Oracle RAC, SAN extension

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

HTH

Duncan

HTH

Duncan
Ignite_2
Frequent Advisor

Re: Oracle RAC, SAN extension

Yes, I thought so, but this command doesn't work here.
Duncan Edmonstone
Honored Contributor

Re: Oracle RAC, SAN extension

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

HTH

Duncan
Ignite_2
Frequent Advisor

Re: Oracle RAC, SAN extension

Hi Duncan,

Yes, this command doesn't even exist on servers.
Duncan Edmonstone
Honored Contributor

Re: Oracle RAC, SAN extension

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

HTH

Duncan
Vishu
Trusted Contributor

Re: Oracle RAC, SAN extension

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.

Ignite_2
Frequent Advisor

Re: Oracle RAC, SAN extension

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