HP XP Racks - Manual (Page 36)

Port attributes
Plan and define the following Fibre Channel port attributes for Continuous Access Synchronous:
•
Initiator ports, which send data. One initiator port can be connected to a maximum of 64
RCU target ports. Configure initiator ports on both primary and secondary system for Continuous
Access Synchronous disaster recovery operations.
•
RCU target ports, which receive data. Configure RCU target ports on both primary and
secondary system for Continuous Access Synchronous disaster recovery operations.
•
Target port: Connects the storage system and a host. When the host issues a write request,
the request is sent to a volume on the XP7 system via a target port on the storage system.
Target ports must be configured on the primary system for Continuous Access Synchronous
operations.
•
External port: Required for External Storage copy operations. This port is not used for
Continuous Access Synchronous copy operations. This port can be changed to a target,
initiator, or RCU target port.
36 Planning for Continuous Access Synchronous