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TAPE ROTATION EXAMPLES
 
GENERAL TAPE TRACKING
 
FIVE TAPE ROTATION
One Per Day
 
GRANDFATHER - FATHER - SON (GFS)
Daily - "Son Tapes"
Weekly - "Father Tapes"
Monthly - "Grandfather Tapes"
 
TOWER OF HANOI
A - Used Every Other Day
B - Used Every 4th Day
C - Used Every 8th Day
D & E - Used Every 16th Day, Alternating
 
FIVE TAPE ROTATION - ONE PER DAY

The simplest tape rotation scheme is to have one tape for each day of the working week. Tapes are labeled: Monday, Tuesday, Wednesday, Thursday, and Friday.

For example, consider the calendar below:

You can restore data from any one of the tapes in your library - or in this case, any day in the past the week. This strategy requires only five tapes, but only provides one week's data backup history.


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