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NTBackup question

I am a little confused by this.  Probably a noobie question too but oh well.  If I am running a differential backup is it ok to use replace rather than append to save HD space?
2 Solutions
Mohammad Ishtyaq KhatriCommented:
you should have a full backup @ the differential backup while restoration so it doesn't matters. If u want to have the file which has been edited 3 days back.. then you can't find it as you replace the differential on daily basis. So that's a disadvantage.

Jarred PowerCommented:
Append- would write to the same media until is runs out of space, if you are (hope you are) saving to a dedicated backup device - then overwrite depending on the rules in place.
While - Replace would overwrite the media, ie if you have a differential bkup up everyday you will only have access to the last days backup.  

cjameson74Author Commented:

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