The Cisco MDS Data Mobility Manager (DMM) is a SAN fabric-based software application that lets you move blocks of data from a source device to a destination device. Typically this capability addresses: array lease expiration events; capacity planning and implementation of tiered storage strategies and implementation of tiered storage strategies.
The Cisco MDS DMM's most valuable feature is its transparent insertion, which allows administrators to complete data movement without any configuration changes to the host, the SAN, or the array, needing support from systems, database, and applications administrators and with minimal disruption to the application.
Cisco MDS DMM also includes several control knob features such as rate control and verification capability. You can control these capabilities from an easy-to-use GUI wizard that simplifies the task of migrating data.