Hitachi TrueCopy for IBM z/OS User and Reference Guide (T5211-96001, June 2007)

Using TrueCopy for z/OS GUI 4-15
Hitachi Universal Storage Platform V TrueCopy for IBM z/OS User’s Guide
MCU&RCU Display on the RCU Operation Window
When the MCU&RCU button is clicked in the Display box, the RCU
Operation window displays the LDKC#, CU grouping, CUs (CU Free and
CU#) in the tree in a hierarchical structure, and the MCU/RCU information in
the list and the preview list. Only CUs which include active MCUs or RCUs are
displayed.
Note: LDKC#01 is not available for the current microcode version.
When an MCU-RCU path fails, the TrueCopy for z/OS software displays an
error icon (
) for the affected CU.
Select Subsystem to display all MCU/RCU information (refer to Figure 4-5).
Select the desired CU to display the MCU/RCU information for that CU (see
Figure 4-6). You can select only one CU at a time. The MCU/RCU information
includes:
• CU: CU number which is selected on the tree view.
• Type: MCU or RCU. MCU is displayed when the USP V that you are accessing
is used as the RCU of the pair.
• S/N and SSID: Serial number and SSID of the other CU of the pair. LDKC
number (with two digits) is also displayed next to the S/N.
• Paired CU: CU number of the other CU of the pair.
• M-R Path: Path channel type (fibre) between the other CU of the pair. This
column is blank when the connected CU is an MCU.
• Status: "Normal" indicates no path failure to the RCU. "Failed" indicates that
a failure occurs in all paths to the RCUs. "Warning" indicates that a failed
path to the RCU exists. This column is blank when the connected CU is an
MCU.
• Num. of Path: Number of paths (blank when the connected CU is an MCU).
Double-click the selected CU to display the RCU information for that CU (see
Figure 4-7). The Controller ID, model name, RCU serial number, LDKC number,
and CU number are displayed next to the RCU icon. You can also double-click
an RCU to display the SSID and path information for that RCU in the list (also
shown in Figure 4-7). The RCU SSID and path information includes:
• Item: SSID or path.
• SSID: SSID of the other CU of the pair.
• M-R Path: Path channel type between MCU and RCU (fibre).
• Status: Status of the path.
• MCU Port: Port number on the MCU side.
• RCU Port: Port number on the RCU side.