IP address change on Cluster Nodes

[Mahesh Kumar Malik]

Hi All

We need to change IP addresses of two node cluster running Oracle RAC. We plan to follow the following procedure:

1. Shutdown database
2. Stop the cluster
3. Change IP addresses of both nodes
4. Reconfigure the cluster and reapply
5. Start Cluster
6. Start Database

Both Nodes share Commoan EVA3K SAN storage configured based on WWN

Please advise whether above procedure is OK? If anything is missing / wrong, please assist

Regards
Mahesh

[Luk Vandenbussche · Accepted solution]

Hi,

Are you running oracle 9 or oracle 10

if it oracle 9 you don't need to stop the whole cluster, if you stop de RAC packages it is enough.
The IP adres is defined in the control file, you don't need to do an cmapplyconf if you modify something here.

On oracle10 it is more difficult

[Robert-Jan Goossens_1]

Mahesh,

check this doc.

Title: How does ServiceGuard "stash" away Network information?
Document ID: KBRC00001282
Last Modified Date: 8/6/05

http://www4.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000080081154

regards,
Robert-Jan

[Hakan Aribas]

Hi,

don't forget stop the Cluster Ready Service (crs) just after shutdown database, before stoping MC/Serviceguard.

Usage:
/sbin/init.d/init.crs stop

[Matthew Ghofrani]

Need to also watch out for your new IP. If it is in a new subnet, you need to modify the subnet portion in package ascii file and if this new subnet is totally new to the cluster, you need to modify cluster ascii file as well.

Matthew from Boston

[Mahesh Kumar Malik]

Thanks guys for your support