Norbert Friemel wrote:
<snip>
CA_RECLAIM?
http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/dgt2d4a0/2.5.3.3
<snip>
Norbert beat me to it (smile). The key to this being useful is that you
have empty CAs to reclaim. One could have a pathological application
that left one record per CA behind after deleting the rest, so that no
CAs ever emptied out to be reclaimed, for example. Or, one could have
an even *more* pathological application that wrote a lot of records into
specific key ranges, deleted them all (causing reclaims) and then
rewrote a lot of records into the same key ranges, causing CA reclaim/CA
allocation thrashing to the detriment of performance.
That said, it's very likely that using CA Reclaim will get you out of
the reorg business, permanently, with no ill effects, for all of your
KSDSs. CA Reclaim is available on all supported releases now, but I
have heard of only one pathological application so far. Of course, it
was one of ours here at IBM. (You can't make this stuff up.)
--
John Eells
IBM Poughkeepsie
[email protected]
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