EMC CX500I Configuration Guide - Page 86

What Is EMC SAN Copy?, SAN Copy runs in the SPs of a CX400, CX500, or - cx500 switch port type

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Page 86 highlights

Data Replication and Data Mobility Software What Is EMC SAN Copy? EMC SAN Copy is storage-system-based software for copying data directly from a logical unit on one storage system to destination logical units on supported remote systems without using host resources. SAN Copy connects through a storage area network (SAN), and also supports protocols that let you use the IP WAN to send data over extended distances (see Implementing SAN Copy Over Extended Distances on page 4-28). SAN Copy runs in the SPs of a CX400, CX500, CX600, CX700, or FC4700 - Series storage system (called a SAN Copy storage system), and not on the host servers connected to the storage systems. As a result, the host processing resources are free for production applications while the SPs copy data. SAN Copy can copy data between logical units as follows: ◆ Within a CLARiiON storage system ◆ On CLARiiON storage systems ◆ On CLARiiON and Symmetrix storage systems ◆ On CLARiiON and qualified non-EMC storage systems SAN Copy can use any CLARiiON SP ports to copy data, provided the port is not being used for MirrorView connections. Multiple sessions can share the same port. You choose which ports SAN Copy sessions use through switch zoning. You can use SAN copy to create full or incremental copies of a source logical unit. An incremental session copies only the data that has changed since the last copy session. This can significantly reduce the time needed to copy the data, thereby allowing the copy operation to be performed more frequently and more effectively. Unlike full copy sessions, the source logical unit for an incremental session can remain online during the copy process. Regardless of the type of copy session - full or incremental - the participating logical units must meet certain requirements. 4-24 EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide

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4-24
EMC CLARiiON CX300, CX500, CX500i, and CX700 Storage Systems Configuration Planning Guide
Data Replication and Data Mobility Software
What Is EMC SAN Copy?
EMC SAN Copy is storage-system-based software for copying data
directly from a logical unit on one storage system to destination
logical units on supported remote systems without using host
resources. SAN Copy connects through a storage area network
(SAN), and also supports protocols that let you use the IP WAN to
send data over extended distances (see
Implementing SAN Copy Over
Extended Distances
on page 4-28).
SAN Copy runs in the SPs of a CX400, CX500, CX600, CX700, or
FC4700 - Series storage system (called a SAN Copy storage system),
and not on the host servers connected to the storage systems. As a
result, the host processing resources are free for production
applications while the SPs copy data.
SAN Copy can copy data between logical units as follows:
◆
Within a CLARiiON storage system
◆
On CLARiiON storage systems
◆
On CLARiiON and Symmetrix storage systems
◆
On CLARiiON and qualified non-EMC storage systems
SAN Copy can use any CLARiiON SP ports to copy data, provided
the port is not being used for MirrorView connections. Multiple
sessions can share the same port. You choose which ports SAN Copy
sessions use through switch zoning.
You can use SAN copy to create full or incremental copies of a source
logical unit. An incremental session copies only the data that has
changed since the last copy session. This can significantly reduce the
time needed to copy the data, thereby allowing the copy operation to
be performed more frequently and more effectively. Unlike full copy
sessions, the source logical unit for an incremental session can remain
online during the copy process. Regardless of the type of copy session
— full or incremental — the participating logical units must meet
certain requirements.