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

Troubleshooting 8-3
Hitachi Universal Storage Platform V TrueCopy for IBM z/OS User’s Guide
Table 8-2 Troubleshooting RCU Path Status Problems (continues on the
next page)
Path Status Description Corrective Action
Initialization
Failed
The link initialization procedure
to the RCU failed.
Make sure that the MCU and RCU are correctly connected via
cable.
Make sure that you entered the correct RCU S/N and SSID and
path parameters (CU #, controller ID, port, link address, logical
address).
For fibre channel interface, make sure that the fibre-channel topology
settings of the MCU and RCU ports are correct.
Communication
Time Out
Communication between the
MCU and RCU timed out.
Make sure that the RCU is powered on and fully functional
(NVS and cache ON).
Make sure that the remote copy connection hardware is properly
configured and functional, including cables, connectors, ESCDs,
repeaters, extender devices, communication lines, and all other
devices connected to the extenders.
Delete the failed path. You may need to change the minimum paths
setting or delete the RCU in order to delete the path. Then add the
path/RCU using Edit Path or Add RCU.
Resource
Shortage
(MCU/RCU)
The MCU/RCU rejected the
establish logical path link
control function because all
logical path resources in the
MCU/RCU are being used for
other connections.
Delete the failed path, and also delete all paths and RCUs not
currently in use. The MCU can be connected to up to four RCUs
with up to eight paths to each RCU.
Make sure all MCU and RCU ports are properly configured ordinary
target ports or RCU target ports for hosts, RCU target ports for
MCUs, initiator ports for RCUs.
If necessary, connect to the RCU to delete paths/RCUs and
reconfigure ports, then reconnect to the MCU.
Add the path/RCU again using Edit Path or Add RCU.
Serial Number
Mismatch
The RCU’s S/N does not match
the specified S/N.
Make sure that you entered the correct RCU S/N and SSID and
path parameters (CU #, controller ID, port, link address, logical
address).
Delete the failed path. You may need to change the minimum paths
setting or delete the RCU in order to delete the path. Then add the
path/RCU using Edit Path or Add RCU.
For fibre-channel interface, make sure that you entered the correct
controller ID, and also make sure that the fibre-channel topology
settings of the MCU and RCU ports are correct.
Invalid Port
The specified port is not
configured as an initiator port,
or this path already exists.
For fibre, make sure that the fibre-channel topology settings of
the MCU and RCU ports are correct.
Make sure that you entered the correct RCU S/N and SSID and path
parameters (CU #, controller ID, port, link address, logical address).
Delete the failed path. You may need to change the minimum paths
setting or delete the RCU in order to delete the path. Then add the
path/RCU using Edit Path or Add RCU.
RCU Port
Number
Mismatch
The specified port in the RCU is
physically disconnected from
the MCU, or the port is not
configured as an RCU target
port.
Make sure that you entered the correct RCU port number.
Correct the port number if necessary.
Make sure that the port in the RCU is configured as an RCU target
port. Configure the port as an RCU target port if necessary.
Make sure that the MCU and RCU are physically connected.