General troubleshooting

The following table provides a list of general error conditions and provides recommended action for each condition.

Error	Corrective action
The Device Manager - Storage Navigator computer or management client hangs, or TrueCopy operations do not function properly.	Make sure that the problem is not being caused by the computer or Ethernet hardware or software, and restart the computer. Restarting the Device Manager - Storage Navigator computer or management client does not affect storage system operations. Make sure that all TrueCopy requirements and restrictions are met (for example, same LU type). Make sure that the primary and secondary systems and data paths are powered on and fully operational (NVS, cache). Check all input values and parameters to make sure that you entered the correct information about the Device Manager - Storage Navigator computer (for example, remote storage system S/N and ID, path parameters, P-VOL and S-VOL IDs).
An initiator channel-enabled LED indicator (on the control panel) is off or flashing.	Contact the Hitachi Solution Support Center.
The pairs or paths to the remote system or to the secondary storage system are not displaying correctly.	Make sure that the correct CU is selected.
A TrueCopy error message is displayed on the Device Manager - Storage Navigator computer or management client.	Resolve the error, and then try the TrueCopy operation again.
The remote system or secondary storage system path status is not normal.	Check the path status (View Remote Connection Properties window of HDvM - SN, or the raidcom get rcu command of RAID Manager ), and see Remote path status problems.
Pair status is PSUE.	See Split pair problems.
The paircreate or pairresync operation resulted in a timeout error.	Hardware failure: If the timeout error was caused by a hardware failure, a SIM is generated. If this occurs, call service personnel, and then retry TrueCopy operations after the problem is fixed. Heavy workload: If no SIM was generated, wait 5 or 6 minutes then check the pair's status. - If status changed correctly, the failed operation completed after the timeout message was issued. - If the pair status did not change as expected, heavy workload might have prevented the operation from being completed. Retry the operation when the system has a lighter workload. A communication error may have occurred between the Device Manager - Storage Navigator computer or management client and SVP. See the Hitachi Device Manager - Storage Navigator User Guide for information and instructions.
There is a pinned track on a TrueCopy volume.	See the troubleshooting topic in the TrueCopy User Guide for more information.
Monitoring data is not updated though the Monitoring Switch option is set to Enable.	Because the time setting of SVP is changed, the monitoring data might not be updated. Disable Monitoring Switch, and then enable again. For more information about Monitoring Switch, see the Performance Manager Guide of your storage system.