Mirroring the DASD to the backup site. On Mon, Feb 11, 2019 at 4:50 PM Jesse 1 Robinson <[email protected]> wrote: > > I have nothing but admiration for a shop that can slosh workload back and > forth between two data centers. There are those that can and those (like us) > that cannot. How does one get from the first group into the second? > > . > . > 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 > [email protected] > > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] On > Behalf Of Vernooij, Kees (ITOP NM) - KLM > Sent: Monday, February 11, 2019 5:58 AM > To: [email protected] > Subject: (External):Re: Wells Fargo? Well f*&%#d at the moment: Data center > up in smoke, bank website, app down . The Register > > We run in 2 sites continuously. Mainly Prod in 1 site and Dev/Acc in the > other site, a CF in both sites and Dasd mirrored between the sites. > Our DRP consists of moving workload from 1 site's LPARs to the corresponding > LPARs in the other site and adding capacity b.m.o. CBUs. No manipulation of > LPARs. > We do this from time to time, sometimes as part of a DRP test, recently also > because of a potentially disastrous power maintenance in a site. > A piece of cake, compared to the comments I read above. > > Kees. > > > > -----Original Message----- > > From: IBM Mainframe Discussion List [mailto:[email protected]] > > On Behalf Of Allan Staller > > Sent: 11 February, 2019 14:30 > > To: [email protected] > > Subject: Re: Wells Fargo? Well f*&%#d at the moment: Data center up in > > smoke, bank website, app down . The Register > > > > I have heard of a company in the Far East the periodically (every 6 > > mths., IIRC) flips from site A to site B (and back). > > Aus(?) to Phillipines ?) and back. > > > > -----Original Message----- > > From: IBM Mainframe Discussion List <[email protected]> On > > Behalf Of Savor, Thomas (Alpharetta) > > Sent: Friday, February 8, 2019 7:08 PM > > To: [email protected] > > Subject: Re: Wells Fargo? Well f*&%#d at the moment: Data center up in > > smoke, bank website, app down . The Register > > > > >We've been doing DR mirroring for 20 years. It gets tested often. > > >We've > > moved production twice to another >data center using our procedures. > > What we've never done is run production in another location > > >temporarily. 'Temporary' means move it, run it until at least one > > transaction is committed, then move it >*all* back. That is hugely > > complex and costly. > > > > >A lot of management fantasizes about a big A-B switch that we throw > > >one > > way or the other. So wrong. > > > > About 5-6 years ago, I was working as a vendor (Daily Support) for > > Credit Card Software for Halifax/Bank of Scotland. I believe the > > first time I was given a "heads up" was when we were supporting 12 > > Million Cardholders. The "Heads up" was that on Friday evening at 6pm > > Main site was going to shut down and the whole weekend PRODUCTION was > > going to run on DR site, then 6am Monday Morning, Main site is to come > > back up and continue as if nothing happened !!! I literally peed in my > > pants !!! > > Probably everyone in Atlanta could hear me...NOOOOOOOOO !!! Thinking > > of all the network signons with Visa and Mastercard...all the credit > > card Authorizations...there was absolutely zero chance of this working > > without issues. > > > > Well, came in Monday morning after receiving no calls over the > > week-end ....everything was fine. We ran the Batch Monday night...and > > that would be pulling in transactions from over the week-end from DR site. > > NO ISSUES !!! Everything was fine. > > > > Whoever did this, from a Systems perspective....I tip my hat. I've > > never seen someone do this with Production, but it worked fine...so > > what do I know. Never seen anyone else do this in my 42 years of > > Mainframing either. > > > > Unfortunately, Halifax/Bank of Scotland is no longer with us. They > > were absorbed by Lloyds Banking Group. > > > > > > Thanks, > > Tom Savor > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, send > > email to [email protected] with the message: INFO IBM-MAIN > > ::DISCLAIMER:: > > ---------------------------------------------------------------------- > > -- > > ---------------------------------------------------------------------- > > -- > > ---------------------------------------------------------------------- > > -- > > -------------------------------------------------------------- > > The contents of this e-mail and any attachment(s) are confidential and > > intended for the named recipient(s) only. E-mail transmission is not > > guaranteed to be secure or error-free as information could be > > intercepted, corrupted, lost, destroyed, arrive late or incomplete, or > > may contain viruses in transmission. 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-- Mike A Schwab, Springfield IL USA Where do Forest Rangers go to get away from it all? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
