Registering Rcus (Add Rcu) - HP xp12000 User Manual

Table 22 Logical path status (continued)
Status description
Communication Timeout Timeout error occurred between the MCU and RCU.
Resource Shortage
Serial Number
Mismatch
Invalid Port
RCU Port Number
Mismatch
RCU Port Type
Mismatch
Communication Failed

Registering RCUs (Add RCU)

You can register up to four RCUs to each MCU, and establish up to eight paths to each RCU. You must
register each CU image as a separate RCU. Logical paths are established for CU images of the MCU and
RCU separately. Maximum number of logical paths for each MCU is 32 (8 paths per RCU × 4 RCUs per
MCU). Remote copy connections and MCU ports must be properly installed and configured before you
can register an RCU. When registering an RCU, the current CU image of the MCU registers the specified
CU image as a Continuous Access XP RCU and establishes the specified number of logical paths to the
RCU. After registering an RCU (and path status is normal), create Continuous Access XP pairs with S-VOLs
in the newly registered RCU.
Use the Add RCU pane to register RCUs to the current CU image of the connected MCU. When you select
Add RCU, the Add RCU pane appears.
66 Continuous Access XP for the XP12000/XP10000
Condition
Establish logical path link function was rejected by the RCU. All logical path resources in
the RCU might be used for other connections.
Serial number of the control unit connected to this logical path does not match serial
number specified by the Add RCU pane.
Serial interface port specified is not in the RCP or Initiator mode.
The following are possible factors:
• Specified port in the RCU is physically disconnected from the MCU.
• Port is not configured as an RCU target port.
• Specified port number is not available.
Microprogram at the RCU side does not support the fibre remote copy function or
specified port type is not RCU Target.
Timeout error occurred on the path between the MCU and RCU.