I believe what you are trying to do is referred to as a Multi-Target configuration, one source set of volumes and multiple target volumes. In the manual Mike referred you to look for the following:
Three-site solutions These solutions include cascaded Metro/Global Mirror (MGM) and Multiple Target Peer-to-Peer Remote Copy (MT-PPRC), which provide two copies that are based on a single source volume. These copies can be synchronously replicated copies or asynchronously replicated copies, or a mix of synchronous and asynchronous replications. Another three-site multi-target volume replication relationship consists of an MM relationship and an IBM zGM replication relationship from the same primary or source volume. Hope that helps, Reno -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Mike Schwab Sent: March 17, 2022 2:17 PM To: [email protected] Subject: Re: DS8K Global Mirroring - dual targets Chapter 2.4 in IBM DS8000 and IBM Z Synergy DS8000 Release 9.2 and z/OS 2.5 https://www.redbooks.ibm.com/redpapers/pdfs/redp5186.pdf On Thu, Mar 17, 2022 at 5:37 PM Tom Longfellow <[email protected]> wrote: > > We have a Global Mirror for our DR site that has served us well for many > years. but, and our familiarity with 'what is possible' has faded. > > We are moving our data center in the next year or so. We have a new DS8K in > shrink wrap now, waiting for a building to be finished. > For migration to the new building. We want to stand up and configure the new > DS8K to mirror the capacities and volumes of the existing DS8K. > After it is stood up and networked over FCIP, the plan is to start a global > mirror from our existing site to the new site. Then, on the magic day. We > turn off the mirror, and IPL the mirror targets as our new production machine. > > Here's the question. Is there a way to use the current source volumes > (which are already in a GM session to our DR site) as source volumes for a > second GM session at the new building AT THE SAME TIME - in parallel. > > The manuals are not leading me to any confidence that this is possible. I > vaguely remember some restrictions from the DS8100 days that may no longer > apply, but who knows? > > Anybody else 'Been there, done that!' > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send > email to [email protected] with the message: INFO IBM-MAIN -- 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 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
