On Thu, 13 Jan 2022 19:02:16 +0000, Richards, Robert B. (CTR) <[email protected]> wrote:
>Thanks for the additional information. I'll file it away if we get a z15. On a >z14_ZR1 at the moment. > >-----Original Message----- >From: IBM Mainframe Discussion List <[email protected]> On Behalf Of >Scott Barry >Sent: Thursday, January 13, 2022 1:56 PM >To: [email protected] >Subject: Re: zEDC Justification documents or links > >On Thu, 13 Jan 2022 16:57:40 +0000, Richards, Robert B. (CTR) ><[email protected]> wrote: > >>Anyone have some good links to share that will state why zEDC is worth >>licensing and getting? 😊 >> >>For the record, we already have the HW feature installed. Don’t ask. >><sigh> > >Consider with the IBM z15, there is no longer any "license requirement" for >activation - no longer implemented with (z14, z13) hardware PCIe cards >(recommended: at least 4 per CPC/CEC) involved, as the function is on-chip. >And the performance measurement moves from RMF 74 subtype 9 to subtype 10; >also, some of the SMF 30 metrics are zeroed-out as no longer relevant. > >Scott Barry >SBBTech LLC > Additional technical information about zEDC has been reported over-time in the Watson & Walker Tuning Newsletters, such as 2016-4. Also, explore past SHARE presentations (e.g., circa Anaheim 2014). Savings opportunities abound (e.g., SMF compression 8-to-1 within LOGSTREAM and offloaded to DASD), with mgmt areas like SMF (LOGSTREAMs), z/OS sequential (DASD-output - look to convert z/OS COMPACTION leverage zEDC, using new SMS DATACLAS like DCZEDCPR) datasets, DFHSM (data migration/backup-copy), DFDSS (ADRDSSU - consider ZAP to use ZCOMPRESS activated by-default); also, ISVs with FDR (config setting ZEDC=YES), PKZIP (also config setting for global use), IBM/Sterling Connect:Direct, XCOM; also with MQ logging, and beyond z/OS with JAVA (Z-deployment) and zlib. Also, look to zBNA tool for dataset candidate identification - not limited to DASD, but also consider tape-to-DASD migration with zEDC as justification-point. You will need/want to gather z/OS performance metrics / reporting setup in order to keep tabs on zEDC card-performance with utilization, queueing, and also to consider opportunity to stagger some "time-period demand", such as SMF LOGSTREAM offloading processes, so as not over-tax PCIe card utilization. Scott Barry SBBTech LLC ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
