Touche. We had a near catastrophic catalog problem some time back. Of course the replicated copy faithfully mirrored the errors, which were procedural rather than structural--tons of vital data deleted by mistake. Still I value mirroring for the classic case of disaster recovery: the production data center suddenly goes offline and cannot be resuscitated within an acceptable window. Mirrored DR allows you get up and running quickly, warts and all.
. . . J.O.Skip Robinson Southern California Edison Company Electric Dragon Team Paddler SHARE MVS Program Co-Manager 626-302-7535 Office 323-715-0595 Mobile [email protected] -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Shane Ginnane Sent: Wednesday, November 25, 2015 2:55 PM To: [email protected] Subject: (External):Re: User Cats and Replication Sites On Wed, 25 Nov 2015 20:53:09 +0000, J O Skip Robinson wrote: >Nothing beats replication, the more the better. Hmmm - unless you happen to have a critical error in the source. Replicating that quietly everywhere can leave you with non-IPLable systems *everywhere*. Which you may not find out about until you try an IPL. And yes, it has happened - LE bug that broke MCAT access for example; ran fine till IPL. Brings to mind the "Schrodingers backup" discussion a few months back. Shane ... ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
