Tape Needs

With this schedule you will need at least nine tapes (if you want to reuse daily tapes--not recommended), or 21 tapes (if you save weekly tapes for a month): one for the level 0, four for the Fridays, and four or 16 daily tapes.

If you need to restore the complete file system, you will need the following tapes: the level 0, the most recent Friday tape, and all the daily tapes since the last Friday tape (if any).