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Former Member

Activity from SAP level while OS upgradation

Dear Experts,

We are having SAP ECC6.0,ehp4 in cluster environment. System team planning for patch upgradation & kernel update for OS-> SUSE Linux11.

Please let us know, which pre & post activities are performed from SAP level when OS is being upgraded. Also, any adverse effects on application , if any...

Thanks

Sumit

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2 Answers

  • Feb 13, 2013 at 05:15 PM

    Share the exact version of the source and target OS and also the source and target SAP kernel.

    Are you only upgrading (patching) your existing OS and exchanging the SAP kernel while you are at it? If so, see SAP notes regarding known issues when replacing the SAP kernel and also OS specific notes.

    Without knowing the details, I would say that exchanging the SAP kernel has more affect on applications then patching of the OS.

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    Former Member
    Feb 13, 2013 at 06:52 PM

    First you need to check compatibility between:

    1) your SAP kernel and new OS level; you may need to upgrade your SAP kernel (http://service.sap.com/pam or check relevant SAP notes)

    2) your DBMS and new OS level; you may need to upgrade your DBMS

    (http://service.sap.com/pam or check relevant SAP notes)

    After OS upgrade adjust OS level parameters according to SAP recommendations (see relevant SAP note). If you use oracle you may need to relink software.

    All these recommendations assume that during OS upgrade you don't damage your SAP system or successfully restore it after (with any method, for example system copy).

    Regards,

    Roman

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    • Former Member Former Member

      Hi,

      While doing OS patching, there is no impact on SAP kernel. If we go for SAP kernel upgrade, then we need to check compatibility. So SAP kernel upgrade isn't a case here, only OS patching & kernel upgrade

      Answer : There won't be any impact. We have recently patches our windows environment and SAP & DB  is working fine.

      You will need to have your SAP & DB services down during the OS patching.

      Since you are just Patching , there won't be any OS parameter change for SAP .

      You can go ahead.

      Please have a complete offline backup before you start your activity.

      Thanks and Regards,

      Vimal