During data replication, data from a primary cluster is copied to a backup or secondary cluster. The secondary cluster can be located at a geographically separated site from the primary cluster. This distance depends on the distance support that is available from your data replication product.
The Geographic Edition software supports the use of certain modes of EMC Symmetrix Remote Data Facility (SRDF) software for data replication. The following modes are supported for disaster-recovery environments:
Synchronous mode
Asynchronous mode
Before you can replicate data with SRDF software, you must be familiar with the SRDF documentation and have the SRDF product and the latest patches installed on your system. For information about installing the SRDF software, see the SRDF product documentation.
This chapter contains the following information for configuring and administering data replication with SRDF software for clusters using Geographic Edition software:
For information about creating and deleting data replication device groups, see Administering SRDF Data Replication Device Groups. For information about obtaining a global and a detailed runtime status of replication, see Checking the Runtime Status of SRDF Data Replication.