Backup Scheme using multiple drives
Will a scheme like the one depicted below work?
Drive 1 |
Drive 2 |
Drive 3 |
Full - backup day # 1 |
Full - backup day # 2 |
Full - backup day # 3 |
Differential - backup day # 4 |
Differential - backup day # 5 |
Differential - backup day # 6 |
Differential - backup day # 7 |
Differential - backup day # 8 |
Differential - backup day # 9 |
Differential - backup day # 10 |
Differential - backup day # 11 |
Differential - backup day # 12 |
Will these differential backups be keyed to the full for day # 1 |
Will these differential backups be keyed to the full for day # 2 |
Will these differential backups be keyed to the full for day # 3 |
The idea is to have the latest backup available and still have some redundancy in terms of - backup drive failure.
After about 4 or 5 differential backups are on a drive, the next backup to take place will be a full and delete all of the differential backups for that drive.


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I would also be sure to create each backup in it's own folder to avoid duplicate names or confusion of files (by the user mostly). Each backup task needs to have a unique name as well so as not to create any confusion in the backup database.
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