SRDF
The Symmetrix SRDF (Symmetrix Remote Data Facility) family of remote mirroring software offers various levels of Symmetrix based business continuity and disaster recovery solutions. The SRDF product family offers the capability to maintain multiple, host-independent, mirrored copies of data. The Symmetrix systems participating in SRDF can be in the same room, in different buildings within the same campus, or hundreds to thousands of kilometers apart.
SRDF transparently remotely mirrors production or primary (source) site data to a secondary (target) site to users, applications, databases, and host processors. The local SRDF device, known as the primary (R1) device, is configured in a partner relationship with a remote secondary (R2) device to form an SRDF pair. By maintaining copies of data in different physical locations, SRDF enables the following operations with minimal impact on normal business processing:
- Disaster restart
- Disaster restart testing
- Recovery from planned outages
- Remote backup
- Data center migration
- Data replication and mobility
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