It will delay synchronous writes, because the write is not returned until the mirrored disk is updated. Asynchronous writes do not delay the return since it occurs when the primary disc is updated.
On Tue, Feb 1, 2022 at 5:50 PM Peter <[email protected]> wrote: > > Hello > > Recently we were a victim of storage replication link between production > and DR site(metro mirroring). Due to this many of our batch jobs took more > time than expected. So here I would like to understand how the dasd update > happens ? For example when a batch allocates some dataset on DASD in > production site so does it returns back or finishes off the I/O operation > is finished from both production and DR ? > > If there is latency in dark fibre connectivity between production and DR , > Will it impact the batch job elapsed time ? > > Could someone please shed some light on this? > > Peter > > ---------------------------------------------------------------------- > 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
