Backups for the network drives stored on the Netapp are done in two ways, snapshots and tape.
A snapshot is a read-only copy of the entire file system and all files--each one reflects the state of the file system at the time the snapshot was created. You can navigate through each snapshot as if it were still active. Your directories and files will appear as they were at the time that the snapshot was taken. Snapshots are taken every hour on this schedule:
- Hourly as 'hourly.year-month-day_time'
- Daily at midnight as 'daily.year-month-day_time'
- Weekly at midnight Monday as 'weekly.year-month-day_time'
Backups to tape are done weekly and stored according to their retention schedules.
Semester backups of the file systems are retained in longterm storage and are available for file restoration by DECS. Each volume is stored for different lengths of time.
|Courses are cleared at the end of each semester. Backups are only retained on tape for 2 months.
|Backups of Research (R:) are retained on tape for 7 years.
|Backups of Office (O:) are retained on tape for 2 years.
|Backups of Home (M:) are retained on tape for 2 years.
|Backups of Sites (W:) are retained on tape for 2 months.
|Backups of Mail are retained on tape for 2 months.