Resolving an error caused by reading or writing to a device
If the problem is an error involving the reading or writing of data from a device, many systems and devices record information in a system error log file.
The system error log file for AIX® is errpt, and for Windows it is the Event Log.
If a device or volume that is used by IBM Storage Protect is reporting an error to the system error log file, it is likely a device issue. The error messages recorded in the system error log file might provide enough information to resolve the problem.
Storage agents are particularly vulnerable if path information is changed or not correct. Issue the QUERY PATH F=D command on the server. For each of the storage agent's paths, verify that the settings are correct. In particular, verify that the device listed matches the system device name. If the path information is not correct, update the path information by issuing the UPDATE PATH command.