SAN Copy allows fast bulk transfer of data between CLARiiON and Symmetrix systems. One of the key benefits is the off-load of host traffic, with an associated increase in copy performance. Data is copied directly from one storage system to the other, with no host involvement in the copy process. Copies can be performed without regard to the host operating system, again because no hosts are involved in the copy. Because ownership of the logical units or volumes does not have to be shared, a level of security can be maintained. SAN Copy requires no special software to be loaded on the destination storage systems. It does not use any special protocol which makes SAN Copy efficient and fast.Either the source logical unit, destination logical units, or both must reside on a SAN Copy storage system – a CLARiiON running the SAN Copy software.
In order for Navisphere Manager to provide the drive letter/file system mapping of participating Symmetrix volumes, the Navisphere Host Agent must be installed on the hosts that own the volumes, and, if that host is not also connected to a CLARiiON in the domain, it must be in a portal configuration. You must make logical units participating in a SAN Copy session accessible to the participating SAN Copy port; this will involve zoning as well as the use of LUN masking software. For SAN Copy to operate correctly, the Storage Processor port must become an initiator and register with the non-SAN Copy storage system.
Salient Features :-
1) Concurrent Copy sessions (up to preset limit)
2) Queued Copy sessions
3) Create/Modify Copy Sessions
4) Multiple Destinations per session
5) Checkpoint at user-specified intervals
6) Pause/Resume/Abort
7) Throttle
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