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VMware vCenter Site Recovery Manager (SRM) leverages storage array-based replication such as Dell Symmetrix Remote Data Facility (SRDF) to protect virtual machines in VMware vSphere environments. The interaction between VMware SRM and storage array replication (SRA) is governed through a well-defined set of specifications. These VMware-defined specifications are implemented by the storage array vendor as a lightweight application referred to as the storage replication adapter.
Dell SRDF Adapter is an SRA that enables VMware SRM to interact with a Dell storage environment. It allows VMware SRM to automate storage-based disaster restart operations on PowerMax arrays in an SRDF configuration. The SRDF Adapter for SRM supports SRDF/Synchronous, SRDF/Asynchronous, SRDF/Metro, Concurrent SRDF, Cascaded SRDF and SRDF/Star modes of operation, depending on the SRA version and array.
SRM is the preferred disaster recovery software for enterprise customers running vSphere on Dell arrays. The interaction of Dell replication software and SRM requires detailed explanation and as such there are two separate whitepapers available which are dedicated to this topic. They are: