I did zBNA study for few environments and every time I see increase (or very 
small decrease) in CPU seconds usage. I see big difference in IO delta and 
considerable saving in DASD storage but not much difference in CPU time? Or 
zBNA includes only batch jobs and no other beneficiary started tasks like HSM, 
CICS, DB2 etc

Thank you,
Prashant

-----Original Message-----
From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of 
Glenn Wilcock
Sent: Thursday, April 18, 2024 2:34 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: [EXTERNAL] Re: Anyone exploiting ZEDC?

DFSMShsm is an excellent use case for zEDC and is our number one best practice 
for HSM.  When enabled, DSS zEDC compresses all blocks of data passed to HSM 
during Migration and Backup.  Because HSM is processing fewer data blocks, both 
cpu and elapsed time are reduced.  When going to ML1, the amount of storage is 
also significantly reduced.

Glenn Wilcock, DFSMS Chief Product Owner

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