W dniu 2010-05-07 17:36, Pat Mihalec pisze:
I am running z/OS 1.4 and think of just jumping to z/OS 1.11, if they
finally let me upgrade the software.
I was wondering if anyone out there thinks this is a real bad idea. I can
isolate a test Lpar and DASD volumes to do this.
I would like some feed back on this idea.

In my humble opinion it is good idea, BUT you you HAVE TO BE careful.
However I don't recognize any known gotchas which guarantee failure.
If you have possiblity to clone your environment using Flashcopy or any other method then your can feel safe.
In my very hu,ble opinion you shoudn't find any problem with the following:
ICF catalogs
RACF db
parmlib members with the exception for TCPIP and TN3270 (it must be separate address space now)
ZFS multi filesystem aggregates (quite new, but rapidly dropped)
I could also suggest to offload SPOOL.



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