on 05-03-2016 2:45 PM
Hi Guys,
I need some clarification regarding the upgrade of kernel in sap Java Application servers .
Currently I have a central instance and 4 dialogue instances where 1 consists of database and the remaining systems are sap AS Java systems.
We are planning to upgrade the kernel to the latest path and I would like to know the following:
1) Once after the uncar of the path files are done Do we need to copy the files to
D:\usr\sap\SID\\exe
And
D:\usr\sap\SID\J00\exe
And
D:\usr\sap\SID\SYS\exe\uc\NTAMD64
Kindly let us know, so that we can proceed accordingly.
Thanks & Regards
, Kaushik G
Hi Khaushik,
You are doing Kernel upgrade on Java Windows system.
Please find the stets and proceed with the Kernel upgrade.
1.Stop the SAP/DB
2. Please take the backup of all existing Kernel exe dir on Java
3. Copy the latest Kernel path and extract it
4. Please check if your sapmnt exe dir is common for CI and DI's
If it is common then you can only replace the kernel on CI( sapmnt exe dir) , if its not common
then you have to place the extracted kernels in CI and all DI's (in sapmnt exe)
( D:\usr\sap\SID\exe--Yes
And
D:\usr\sap\SID\J00\exe--Yes
And
D:\usr\sap\SID\SYS\exe\uc\NTAMD64) --Yes
Check if there is any central services SCS exits in your JAVA systems , if its there then take the back of exe and replace it.
5. Dialog instance also you have to replace the kernels in all exe folder where ever it's exits
FYI...
Kernel path should be same for CI and all DI"s. if it's not same then kernel syn will not happen for CI and DI's
6.Before starting check the disp+work , it will display the kernel version where we are.
7.start DB and SAP
Regards,
Krishnaiah
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If you are that worried do it via SUM. It will handle most of your doubts. However I do recommend you going thru the proper SAP Note for the kernel version you are planning to move to
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Hi Kaushik,
Please follow below note for update the kernel.
19466 - Downloading SAP kernel patches
Procedure:
Copy uncar files to /sapmnt/<SID>/exe, /usr/sap/<SID>/JC<nn>/exe and /SDM/exe and all application servers locations.
Rename .old to existing library files in existing kernel
For giving appropriate permissions to kernel files , logon to root user
Then run script => /sapmnt/<SID>/exe saproot.sh <SID>
Before starting the startsap , cleanipc <nr> remove
startsap
Thanks & Regards,
Balaram
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Hi Kaushik,
You should follow SAP note 19466, specially point 5 (Recommendations for applying kernel patches).
Regards,
Cris
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Hi Kaushik,
Update the kernel files in this location D:\usr\sap\SID\SYS\exe\uc\NTAMD64
Files to the location D:\usr\sap\SID\J00\exe should get copied during system startup using sapcpe process. If this does not work then manually copy the files to this location as well.
Regards,
Deepak Kori
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