Replying to the original question. There may well be a better way to manage DR than what we do, but we have not been pitched one in 20+ years. We own both PROD and DR data centers and all contents. The DR site runs XRC ('Global Mirroring for Z', a truly execrable name). Its only job in life is to pull data from PROD and continuously update a full set of secondary volumes that correspond to the full set of primary volumes. It runs on one general purpose CP supported by enough CBU to mimic a full set of DR LPARs including CFs. When we're ready for a test, we push a GDPS button to FLASH the secondary volumes over to a tertiary set and make them look (almost) exactly like the primary set. We IPL and run from the tertiary set. Meanwhile mirroring continues to the secondary set so at any moment we could enter a real DR with no data loss.
The z/OS license on the DR box is ' ZNALC', which allows us to run DR but no portion of production or application development. Even the skinflint bean counters are satisfied that this is a good deal. We don't have to pay any third party for resources. Nor do we have to schedule test windows. And most important of all, in the case of a regional disaster--for SoCal read earthquake--we would not have to compete with other clients for DR run time. If you're looking for some 'other way' to manage DR, be sure that these issues are accounted for. Or else not critical for your enterprise. . . J.O.Skip Robinson Southern California Edison Company Electric Dragon Team Paddler SHARE MVS Program Co-Manager 323-715-0595 Mobile 626-543-6132 Office ⇐=== NEW robin...@sce.com -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Ambros, Thomas Sent: Wednesday, February 20, 2019 11:01 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: (External):Disaster recovery, alternatives to CBU machine in alternate site Currently we're handling our hardware or site level disaster recovery with an essentially cold machine in an alternate site, a CBU entitlement allows us to spin it up and run recoveries. We've been pitched CMP (Country multiplex pricing) because there is a potential requirement to be able to run out of one site or another for a period of months. One assumption is that the capability stays in house. I've been asked to solicit this list for answers to a couple of questions. Are there alternatives to either of these arrangements that allows a customer to support production processing capacity in two sites without incurring the extra cost of CMP, or even the CBU? If you've implemented CMP, did it have an effect on your expenses one way or another? I don't know if these are appropriate questions in this forum but if they are I'd be grateful to learn of alternatives we should look into. <snip> ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN