Data ONTAP automatically logs significant events and the times at which they occur during dump and restore operations. All dump and restore events are recorded in a log file named backup in the /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).
If a takeover occurs in an HA pair, the set of backup log files for the takeover storage system remains separate from the backup log files for the failed storage system.
