Home > Storage > PowerStore > Virtualization and Cloud > Dell PowerStore: VMware Site Recovery Manager Best Practices > Overview
Starting with PowerStoreOS 4.0 and storage replication adapter version 2.1.1.388, Site Recovery Manager supports cross vCenter migration with PowerStore Metro Volume stretched storage. Metro Volume is an active-active synchronous replication that supports Recovery Point Objectives and Recovery Time Objectives of zero in migration or disaster avoidance scenarios. For best practices regarding Metro Volume (uniform/non-uniform configurations, latency, workload mobility, and so on), see the white paper Dell PowerStore: Metro Volume.
Note: Stretched storage is supported only on vCenter Single Sign-On Enhanced Linked Mode environments.