About Site Recovery Manager and the Storage Replication Adapter

Ops Center Protector VMware Application Guide

Part Number

Site Recovery Manager (SRM) interacts with storage arrays where the VMware datastores are held, to protect VMs at the production site with replicas at a backup site. SRM does this by sending queries and commands to the storage arrays via a Storage Replication Adapter (SRA) which translates these into Protector REST API calls. Protector then either returns state information about the LDEVs where the datastores are held or performs: Pausing, Resuming, Secondary Failover, and Swapping; of the associated replication pairs for: SRM Test Failover, Test Cleanup, Failover and Reprotect; for both stretched and non-stretched storage SRM protection groups.

Figure. SRM, SRA and Protector interaction
Table. SRM commands translated by SRA into Hitachi Vantara actions
SRM Command Protector Action
Discover paired storage arrays List arrays in existing replications
Discover replicated devices List replicated LUNs for those replications
Sync replicated device Trigger the replication if replication is not in sync
Test a Failover by temporarily copying VMs from one vCenter to another
  • Non-disruptive: Pausing a batch or continuous Refreshed Thin Image or batch ShadowImage replication
  • Disruptive: Pause the Disaster Recovery (DR) replication
Failover by permanently moving VMs from one vCenter to another Put the DR replication into a secondary failover state or swap the replication if it is GAD and there is no disaster recovery required
Reverse replication (reprotect) Swap the replication if required