up2date question on upgrades to kernel with asm
rh2281Mar 6 2007 — edited May 4 2007I am looking for the proper procedures to update the kernel along with the necessary ASM libraries in a RAC environment with minimal downtime.
Here is what I think has to happen:
Starting on Node #1
1. Disable and failover all connected sessions to services connected to the local instance. Then, shutdown all Oracle instances, listeners, ASM, and CRS on the local node only.
2. Use command "up2date -u kernel* oracleasm*"
3. Relink Oracle executables in all kernels (CRS, ASM, and DB) on the local node
4. Restart CRS which will restart all registered apps (listener, nodeapps, asm, db) on the local node.
5. Verify the Oracle services for the local instance are in an available state.
6. Repeat Steps 1-5 for all remaining nodes.
My main question is whether or not I need to be worried about running a Linux cluster in a mixed kernel and asmlib environment?.
Another question using up2date is how to does one know if the node requires to be rebooted after an RPM is installed? I have never seen up2date return information that a reboot is required.
Thanks
Robert