Explanation: The system's device driver returned an I/O error while NetBackup closed a tape.
Recommended Action: For additional information, check the following:
NetBackup Problems report to determine the device or media that caused the error
A defective or a dirty drive. Clean it or have it repaired (see the tpclean command for cleaning).
Defective media. In this case, some data may be lost. Use the bpmedia command to set the volume to the FROZEN state so it is not used for future backups.
See "Troubleshooting frozen media" in the Troubleshooting Guide.
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator at webmaster@systemmanager.forsenergy.ru to inform them of the time this error occurred, and the actions you performed just before this error.
More information about this error may be available in the server error log.
Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request.