Netbackup uses the parameters TIME_WINDOW and MEDIA_ERROR_THRESHOLD to determine if a media has to be frozen.
- Netbackup freezes media on the third time a error is ecountered in 12 hours on a media.
- Default Media Error threshold is 2 and time window for error is 12 hours
If you wish change above parameters can be tuned as follows
in Netbackup 6.x
nbemmcmd -changesetting -machinename <hostname> -TIME_WINDOW <no. of hours>
nbemmcmd -changesetting -machinename <hostname> - MEDIA_ERROR_THRESHOLD <value>
If you wish to check the error files can be checked from
Netbackup records the failure(write failure, position error) on every media server at the following location
/usr/openv/netbackup/db/media and the file name is errors.
install_path\Netbackup\db\Media and the file name is errors.