Jesper Krogh wrote:
> Cedric wrote:
>   
>> Do a Differential once every 90 days and Incrementals the rest of the time.
>> In theory, you only need to run one Full backup. Ever. In practice, you'll
>> probably want to create a new Full backup every year or so to clear out the
>> obsolete data and make your differentials smaller (and faster).
>>     
>
> Also keep restores in mind.. using above configuration and running a
> full yearly and a differential every 90 months could require you to find
> 1 (full) + 1(differential) + 89(incremental) => 91 tapes to do a
> restore. Either you have a huge changer, or you are heading into an
> administrative nightmare.
>
> I suggest running differentials at least weekly, just to lower the
> amount of tapes needed for restores.
>   
I think you missed an important detail given in the OP:

    "Please consider that I'm using File disk Backups."

He's backing up to disk. There are no tapes to change because there are 
no tapes.

- Cedric



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