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author's profile photo Former Member
Former Member

Update Kernel on dual stack ABAP + JAVA

Hi

we have NW2004s dual stack ABAP and JAVA and we want to upgrade the kernel. ABAP is non unicode

1. Since ABAP is unicode I guess we have to apply a unicode kernel. But where we are confused is that JAVA is always unicode

2. In the system there are several directories containing kernel binaries

/sapmnt/P81/exe

/sapmnt/P81/exe/nuc/hpia64

/sapmnt/P81/exe/uc/hpia64

/usr/sap/P81/DVEBMGS00/exe

/usr/sap/P81/SCS01/exe

Why do we have a uc and nuc directories since our ABAP is non unicode ?

We are familiar with ABAP kernel but what is a JAVA kernel what binaries it contains ?

3. Is kernel update can update also the config tool or visual admin ? or theses components are never updated ?

4. If we decide to update the kernel manuall can we just extarct the non unicode kernel to /sapmnt/P81/exe ?

5. If we use JSPM to update the kernel does it stops ABAP instances or only JAVA instances ?

Thak you for your help.

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  • Best Answer
    author's profile photo Former Member
    Former Member
    Posted on Mar 16, 2008 at 08:53 PM

    Hi

    Nice Question !!!

    1. This Q have your mistyped unicode for non-unicode ? If your ABAP is non-unicode, apply only non-unicode Kernel.

    2. I assume they are needed for data exchange between NUC and UC data.

    3. These components are not updated during kernel update. As far I know they are update with new releases of J2EE Engine.

    4. Yes you can stop the Instance and extract the non-unicode Kernel

    5. JSPM doesn't stop ABAP Instance, only stops JAVA instance.

    Cheers

    Shaji

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    • Former Member Former Member

      Its always good to update IGS as well . Its part of of the stack but here you arent using stack , so i would say update IGS as well .

      Thanks

      Prince Jose