You can view the event log files to monitor the tape backup and restore operations. Data ONTAP automatically logs significant backup and restore events and the time at which they occur in a log file named backup in the controller's /etc/log/ directory. By default, event logging is set to on.
You might want to view event log files for the following reasons:
Once every week, the event log files are rotated. The /etc/log/backup file is renamed to /etc/log/backup.0, the /etc/log/backup.0 file is renamed to /etc/log/backup.1, and so on. The system saves the log files for up to six weeks; therefore, you can have up to seven message files (/etc/log/backup.[0-5] and the current /etc/log/backup file).