HP XP Continuous Access Software - Manual (Page 54)

54 Continuous Access XP for the XP1024/XP128
To set a disk array as an MCU, configure MCU ports.
Configuring MCU ports
All Fibre Channel interface ports on the disk array have a default setting of Target port (CHF). Target
mode is used for host processor channel interfaces. Fibre Channel ports used for Continuous Access XP
communications to RCUs must be configured as Initiator ports. Fibre Channel interface ports in the RCU
used to communicate with the MCU must be configured as RCU target ports. Initiator mode emulates a
host channel, enabling the MCU to send write I/O operations directly to the RCU target port. Use
Continuous Access XP to change the configuration of the ports as needed to accommodate host and
Continuous Access XP communications paths. Two or more Initiator ports must be configured before you
can register RCUs and create Continuous Access XP pairs. For further information, see ” Initiator ports and
RCU target ports ” on page 17.
Use the Port tree and Port list on the RCU Operation pane to configure MCU ports. Clicking Port in the
Switch Display box changes the tree to the Port tree and changes the list to the Port list.
1. In the Continuous Access XP main pane, click RCU Operation.
2. Click Port in the Switch Display box. The tree changes to the Port tree and the list changes to the Port
list.
3. Click a package or port type from the Port tree. Only the selected package or port type appears in the
Port list.
4. Click the ports of the CU you want to configure as MCUs from the Port list, right-click, and click
Initiator.
For port change operations, there is no separate pane. The list keeps displaying the Port list. For more
information about changing the port mode, see ” Port change operation ” on page 65.
RCU operations
RCUs are control units that control S-VOLs of volume pairs. RCUs are connected to MCUs via remote copy
connections, and receive and process commands from MCUs.
RCU operations are performed separately for each CU image of each MCU and RCU to provide
maximum flexibility in Continuous Access XP configurations. The following are RCU operations:
• ” Viewing RCU Status (RCU Status) ” on page 55
• ” Registering RCUs (Add RCU) ” on page 56
• ” Registering RCUs (Add RCU) ” on page 56
RCU options apply to all CU images of the MCU.
• ” Modifying RCU options (Change RCU Option) ” on page 60
• ” Deleting RCUs (Delete RCU) ” on page 61
• ” RCU path parameters ” on page 61
• ” Adding and deleting logical paths for RCUs (Add Path/Delete Path) ” on page 62
• ” Adding and deleting SSIDs for RCUs (Add SSID/Delete SSID) ” on page 64
Use the RCU Operation pane to perform RCU operations. All operations that can be performed from the
RCU Operation pane have the following common procedure:
1. Click the CU number or Package number in the tree.
2. Click one or more RCUs or Packages in the list. For registering RCU operation, the RCU does not have
to be selected. For this step, the list can be blank.
3. Right-click the list, and perform one of the following:
a. Click MCU&RCU in the Switch Display box to display the following commands:
• RCU Status: Displays RCU status
• RCU Operation: RCU settings operation
• Edit SSID(s)&Path(s): SSID and Path settings operation
When the list is blank, only the RCU Operation command can be activated.
b. Click Port in the Switch Display box to display the following commands: