Case to analyze
Suppose you need to automate a tape rotation for the case if:
Let’s analyze the results of a combination of GFS and ToH schemes with different tape options for the case.
All the below analyzed examples are a simplistic approach to a real case, but provide you with a general conception of backup distribution onto tapes.
Legend for the case example figures
Any daily/incremental backup (16 GB) is shown in the figures as a green rectangle: .
Weekly/differential backups (40 GB) are displayed as a blue rectangle: .
Any full monthly backup (320 GB) is drawn in orange:
A whole tape (400 GB) is drawn as a gray rectangle: