HP StorageWorks XP Remote Web Console Software - Manual (Page 97)

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Round Trip Time: Delay time because of remote I/O according to the connection devices and
the distance of the line between the MCU and RCU.
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Check box, Refresh the RCU Operation window after this dialog box is closed: To refresh the
RCU Operation window after closing the RCU Status dialog box, click the check box. By
default, the check box is not selected.
The Refresh button refreshes the status information. The Close button closes the RCU Status dialog
box.
Table 27 Logical Path Status
Condition Status Description
This path has been successfully established and can be used for XP Continuous
Access remote copy activities. Normal
The link initialization procedure with the RCU has failed because either the
physical path connection between the MCU and the RCU or the connection
between the MCU and the host was missing. Initialization Failed
A timeout error has occurred between the MCU and RCU. Communication Timeout
The establish logical path link function has been rejected by the RCU. All logical
path resources in the RCU might be used for other connections. Resource Shortage
The serial number of the control unit which is connected to this logical path
does not match the serial number specified by the Add RCU dialog box. Serial Number Mismatch
The interface port specified is not in the initiator mode. Invalid Port
There are three possible factors: The specified port in the RCU is physically
disconnected from the MCU. The port is not configured as an RCU target port.
The specified port number is not available. RCU Port Number
Mismatch
The microcode at the RCU side does not support the fibre remote copy function,
or the specified port type is not an RCU target. RCU Port Type Mismatch
A timeout error has occurred on the path between the MCU and RCU. Communication Failed
This logical path was blockaded because a path error or a link error has
occurred continuously. Logical Blockade
This logical path was blockaded because a program error has occurred. Program Error
Deleting an RCU
You can delete an RCU from an MCU only after all XP Continuous Access pairs between the MCU
CU and the RCU CU have been released. When you delete an RCU from an MCU, the MCU
deletes all logical paths from the current MCU CU to the selected RCU CU. Deleting an RCU does
not affect the XP Continuous Access operations between the other MCU CUs and that RCU. After
an RCU has been deleted, you can re-configure the remote copy connections to add another RCU
to the MCU, or you can remove the remote copy connections and re-configure the MCU ports
(initiator ports to ordinary target ports for fibre) to provide additional host channels for the MCU.
The RCU Operation > Delete RCU command allows you to delete an RCU from an MCU CU. The
MCU will not allow you to delete an RCU that still has pairs with the MCU.
If all affected XP Continuous Access pairs have not been released, the MCU will reject the delete
RCU operation to prevent accidental release of XP Continuous Access pairs.
To delete one or more RCUs from an MCU CU:
1. Make sure that all affected XP Continuous Access pairs have been released.
2. Click the RCU Operation tab, and click the MCU&RCU display button.
3. Select the RCU(s) that you want to delete from the RCU list.
RCU Operations 97