Nowadays we have a backup strategy like this :
Daily Backup = Monday-Thursday = Full Backups with individual tapes for each
weekday.
Weekly Backup = 2nd-5th Friday = Full Backups with individual tapes for 7
Fridays
Montly Backup = 1st Friday = Full Backups with individual tapes for 12
months
This way I'm using 23 tapes.
Then I was reading about Differential backups, and this strategy came into
my mid :
- One Full Backup on the first day of the year, say 2nd January (since 1st
it´s a holyday) on disk, in the storage machine. The data would be stored in
a tape, which would be taken offsite.
- 364 Differential backups, one for each day of the year. Using the 23 tapes
to do it.
Since the amount of data added on a year it's a maximum of 3 GB, the 23
tapes will be enough to backup every day on a year.
Well, as I didn't find any recomendations to this strategy, I was in doubt
if it would be fine to do this way.
Suggestions or Critics are welcome.
Regards,
Augusto Camarotti
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