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ETERNUS SF Express V15.0 Operation Guide

A.2.4 Configuration for remote copy

Creating copy destination volumes

When creating copy destination volumes for remote copy, note the following:

For procedures about creating a copy destination volume, refer to "Create the volume" in the "ETERNUS SF Web Console Guide".


Setting of port mode

FC-RA ports or iSCSI-RA ports are required for REC.
Change the port mode of FC port or iSCSI port to Remote Adapter (RA).


Setting of copy paths

This setting is required for all storage systems that perform REC.
Create a data transmission path by combination of FC-RA ports or iSCSI-RA ports.


Setting of REC buffers

When using the Consistency mode, REC buffers are used. Up to four REC buffers can be set. Set the REC buffer size for both data transmission and reception units. You can use a single buffer for unidirectional data transfer only. Therefore, if you use the bidirectional data transfer, you must also set the buffer for reverse directional data transfer.