EMC Storage Product Knowledge Sharing

SRDF/S and SRDF/A configuration involves tasks such as suspending and resuming the replication, failover from R1 side to R2, restoring R1 or R2 volumes from their BCV, and more. You perform these and other SRDF/S or SRDF/A operations using both symrdf and TimeFinder command symmir. The below details are for SRDF Pair states during SRDF procedure.SyncInProg :- A synchronization is currently in progress between the R1 and the R2. There are existing invalid tracks between the two pairs and the logical link between both sides of...

Conceptually, even operationally, SRDF is very similar to Timefinder. About the only difference is that SRDF works across Symms; while Timefinder works internally to one Symm.That difference, intersymm vs intrasym, means that SRDF operations can cover quite a bit of ground geographically. With the advent of geographically separated symms, the integrity of the data from one symm to the other becomes a concern. EMC has a number of operational modes in which the SRDF operates. The choice between these operational modes is a balancing...

Lets talk about SRDF feature in DMX for disaster recovery/remote replication/data migration. In today’s business environment it is imperative to have the necessary equipment and processes in place to meet stringent service-level requirements. Downtime is no longer an option. This means you may need to remotely replicate your business data to ensure availability. Remote data replication is the most challenging of all disaster recovery activities. Without the right solution it can be complex, error prone, labor intensive, and...