Have you considered using zEDC on your SMF logstreams?
My current recommendation is to remove internal compression from
CICS CMF (110/112) and DB2 (100-102) records, Zedc compress the SMF
logstreams, then compress the logstream offloads via SMS zEDC
compression. Note that DFHSM archives compressed data as-is, so that
ought to reduce storage needs in ML2.
Michael
At 11:16 AM 4/16/2024, Jousma, David wrote:
Is anyone exploiting ZEDC data compression accelerator in your
environments? We recently licensed the enablement and are working
through the issues in our DEV environment.
We initially enabled Extended Format/COMPACT ZP, for all DSORG PS
datasets, but are quickly finding that DFSORT, SAS, ISPF recovery
datasets all have issues. We've turned back off for now.
There is no central location in any IBM doc(including recent
REDBOOKS) that discusses where we can and cannot leverage ZEDC. As
it stands now, we had to back out, and looking at taking a new
approach in our ACS routines checking for DSORG=PS, and then if not
temp-dataset, or tape assign a DC with the right options.
What I am wondering is if anyone is further along that can share how
they rolled out? I really don't want to have to make the
applications teams have to "opt-in" by coding a DC in their JCL or
other dataset allocations.
Dave Jousma
Vice President | Director, Technology Engineering
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