HP StorageWorks XP Remote Web Console Software - Manual (Page 105)

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External: This attribute can be set by the Universal Volume Manager software. The external
port is used for Universal Volume Manager, not TrueCopy for Mainframe. To use this port for
TrueCopy for Mainframe, change the attribute to the initiator, RCU target or target port.
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Initiator/External: This setting shows the combination of ports that have an initiator port and
an external port attributes. Only port that has an initiator port attribute within these ports can
be used for TrueCopy for Mainframe. This attribute cannot be changed by the TrueCopy for
Mainframe software. For details on the port to which an initiator/external mix mode is set,
see the HP StorageWorks XP24000/XP20000 External Storage Software User's Guide.
CAUTION:
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Before changing a Fibre Channel port to an initiator port, disconnect the port from the host,
release all affected TrueCopy for Mainframe pairs, delete all paths from the port to the MCU
(if RCU target), and then remove all channel paths to the port.
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Before changing a Fibre Channel port from initiator to target or RCU target, release all affected
TrueCopy for Mainframe pairs, delete all paths from the initiator port to the RCU, and then
delete the RCU from the MCU.
CAUTION: Limit the number of hosts connected to an RCU target port to 128 or fewer to avoid
mistaken disconnection. If more than 128 hosts are connected to an ordinary target, some hosts
may be disconnected after changing the type from target to RCU target.
To configure the HP disk array Fibre Channel ports:
1. Click the RCU Operation tab, and click Port display to display the channel adapters and port
types for the connected storage system in the tree.
2. Select the desired channel adapter to display only the ports for that channel adapter. Select
the desired port type to display all ports of the selected type.
3. Select the port(s) that you want to configure. Make sure to select only fibre ports.
4. Right-click the selected port(s) and then select the desired port type: initiator, RCU target, or
target for Fibre Channel. Modified is displayed on the rightmost column of the selected port.
The preview list displays the updated information.
5. Verify the requested port change operation(s) displayed in the lists.
To change one or more port operations, select the operation(s), right-click the upper list, and
select the desired port type. To remove one or more operations, select the operation(s),
right-click the preview list, and click Delete. To cancel all operations, select all the operations
in the preview list, right-click, and click the Delete command, or click Cancel.
CAUTION: Read and follow the important cautions above before starting the port change
operations.
6. To start the operation(s), click Apply.
Adding an RCU
You can add up to four RCUs to each MCU and establish up to eight paths to each RCU. You must
add each CU as a separate RCU to each CU of the MCU. The logical paths are established for
the CUs of the MCU and RCU separately. The maximum number of logical paths for each MCU
is 32 (8 paths per RCU x 4 RCUs per MCU).
The remote copy connections and MCU ports must be properly installed and configured before
you can add an RCU. When you add an RCU, the selected CU of the connected MCU adds the
specified CU as a TrueCopy for Mainframe RCU and establishes the specified number of logical
paths to the RCU. After you have added an RCU (and path status is normal), you can create
TrueCopy for Mainframe pairs which have R-VOLs in the newly added RCU.
RCU Operations 105