Re: ISPPROF datasets as PDSEs (Was: Future ISPF directions)

The plot thickens...

I forgot that Ed Jaffe refuted this a few years ago:

http://bama.ua.edu/cgi-bin/wa?A2=ind0301&L=ibm-main&P=R23966&I=1

As to not re-hash the entire thread, *please* search the archives
or google for "TSO ISPPROF heavy usage".

Mark
--
Mark Zelden
Sr. Software and Systems Architect - z/OS Team Lead
Zurich North America and Farmers Insurance Group
mailto: mark.zelden@xxxxxxxxxxxx
Systems Programming expert at http://Search390.com/ateExperts/
Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html




On Tue, 30 Aug 2005 10:27:48 -0500, Mark Zelden <mark.zelden@xxxxxxxxxxxx>
wrote:

>On Tue, 30 Aug 2005 09:49:22 -0500, John P Kalinich <jkalinic@xxxxxxx>
>wrote:
>
>>Below is the discussion from ISPF-L that Mark Zelden was referring to.
>
>That's it! Thank you John... saved me a search of the archives. BTW,
>that post was from 7 years ago (Oct. 5 1998).
>
>Mark
>
>
>>
>>Regards,
>>John Kalinich
>>Computer Sciences Corp
>>--
>>
>>Monitor your ECSA usage. It may increase if you have dozens or hundreds
of
>>users with ISPPROF datasets as PDSEs.
>>
>>We normally recommend against having ISPF profile datasets being PDSEs
>>because ISPF uses update-in-place and has padding in profile dataset
>>members to usually avoid x37 abends while writing to ISPPROF. Also, as
>>mentioned above, open PDSEs use storage in ECSA, even if they are not
>>shared. Finally, the performance of PDS is usually better than PDSE for
>>ISPF profile datasets.
>>
>>Dave Levish
>>Former PDSE Developer
>>
>
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Relevant Pages

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