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Chapter 3 Preparing for Universal Replicator z/OS Operations 3-15
Hitachi Universal Replicator for IBM /OS User’s Guide
Host
(Primary)
*1 Fabric OFF
Host
(Secondary)
*1
NL
_
Port
MCU
RCU
NL
_
Port
Initiator port
Ordinary fibre-channel
interface port (target port)
RCU target port
* To set ports, use LUN Manager and set port topology to: Fabric off, FC-AL.
Figure 3-2 Direct Remote Copy Connections
NL_Port
NL_Port
*1 Fabric ON
E_Port
Initiator port
Ordinary fibre-channel
interface port (target port)
Switch
RCU target port
Host
(Secondary)
Host
(Primary)
MCU RCU
FL_port
or
F_port
NL_port
or
N_port
FL_port
or
F_port
*1
Max. 2 switches
connection
Figure 3-3 Switch Remote Copy Connection
Host
(Primary)
NL_Port
NL_Port
*1
*1 Fabric ON
MCU
RCU
Host
(Secondary)
Initiator port
Ordinary fibre-channel
interface port (target port)
Switch
Channel extender
RCU target port
NL_Port
or
N_Port
Figure 3-4 Extender Remote Copy Connection
Caution: When a MCU and RCU are connected via switches with channel
extender, and multiple remote copy paths are assembled, the capacity of data
to be transmitted may concentrate on particular switches, depending on the
configuration and the settings of switch routing.