Adjusting the media_error_threshold
You can adjust the NetBackup media error threshold as follows.
To adjust the NetBackup media error thresholds
- Use the nbemmcmd command on the media server:
Linux/UNIX
/usr/openv/netbackup/bin/admincmd/nbemmcmd -changesetting -time_window unsigned integer -machinename string -media_error_threshold unsigned integer -drive_error_threshold unsigned integerWindows
install_path\NetBackup\bin\admincmd\nbemmcmd.exe -changesetting -time_window unsigned integer -machinename string -media_error_threshold unsigned integer -drive_error_threshold unsigned integerFor example, if the -drive_error_threshold is set to the default value of 2, the drive is downed after 3 errors in 12 hours. If the -drive_error_threshold is set to 6, it takes 7 errors in the same 12-hour period before the drive is downed.
NetBackup freezes a tape volume or downs a drive for which these values are exceeded. For more detail on the nbemmcmd command, refer to the man page or to the NetBackup Commands Reference Guide.