Kernel Patch Upgrade

[Former Member]

Hi all,

We have our production system which is on ECC 6.0 with Oracle 10.2.0.2.The CI is on HP-Ux and there are 3 Application servers on Linux. All are on kernel patch level 95 and we need to update the kernel patch level to 124 in all the CI+apps

I just wanna know if the scenario below is correct

1)stopsap on all the apps

2)stopsap on the CI

3)Do the kernel upgrade on CI

4)Start sap on CI,chec if its fine

5)Then update kernel in individual apps and start sap on the apps server.

I guess its right..But just wanted to know if this is the best possible thing or something else is better than the above scenario.

Regards

Bharathwaj V

[Former Member · Accepted solution]

Hi Bharathwaj V,

your scenario sounds good.

Just some remarks:

- after stopping the app server / CI, also stop saposcol before changing the kernel

- make sure to run the same patchlevel on all appservers and CI (you seem to know about this already)

- run "saproot.sh <SID>" as root after changing the kernel before restarting the CI and appservers. saproot.sh is contained in the exe-directory, it will set the exe-settings of saposcol and br*

- because of the special settings of saposcol and br*, you'll have to change the kernel files as root

- keep a backup of the old kernel (copy exe to exe_PL95) until you are sure everything works fine.

Best regards,

Elmar.

[former_member204746]

this all looks good.

unless your apps server have NFS mounts to the kernel on the CI...

[Former Member]

Thanks for your valuable suggestions

The kernel upgrade to patch 124 has been completed in the CI and all the apps servers.

Regards

Bharathwaj V