Not sure if this would help. https://www.ibm.com/docs/en/zos/2.1.0?topic=flashcopy-pprc-primary
Rex -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Michael Babcock Sent: Monday, September 16, 2024 7:39 AM To: [email protected] Subject: [EXTERNAL] Re: MTMGM and Flashcopy No one knows the answer to this? On 9/13/2024 9:43 AM, Michael Babcock wrote: > We currently have a MTMGM (Multi-target, Metro Global Mirror) > implementation. Most of our volumes are in this MTMGM > configuration, however we have a few that are not. We have a volume, > say at address A000, that is not part of the MTMGM nor part of any > other copyset. We have a batch job that copies to this A000 address > using FASTREPLICATION(PREFERRED), so it uses flashcopy and the job > completes very quickly. Back in 2019, we decided to add this A000 > volume to a metro mirror copyset. When the batch job ran, it > couldn't use flashcopy and fell back to standard data movement. This > extended our batch window and is not acceptable. I don't remember > exactly what the error was but vaguely recall it was something about > not being able to use FC to a target when that target was also a PPRC > source. > > Has anything changed with regard to using FC to a volume that is part > of the MTMGM or any other copyset? > > MTMGM: Our config is we have one DS8950 as our primary DASD box, we > have another DS8950 being used as a Metro Mirror box colocated with > the primary and we have a third DS8886 (soon to be a new DS8950) box > at a remote site using Global Mirror. We use MTMGM to replicate from > the primary to the MM box and using GM to the remote box. > > We really want to add the other volumes to the MTMGM but don't want to > affect the batch Flashcopies to those other volumes. Clear as mud? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- The information contained in this message is confidential, protected from disclosure and may be legally privileged. If the reader of this message is not the intended recipient or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any disclosure, distribution, copying, or any action taken or action omitted in reliance on it, is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately by replying to this message and destroy the material in its entirety, whether in electronic or hard copy format. Thank you. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
