|I understand that a full backup backs up everything, and a differential backs up all changes since a full backup, and an incremental backup backs up all changes since the previous incremental.|
My belief is that I can do a full backup on Sunday, then differentials Mon- Fri. Then, if everything crashes, I can restore the full, then the most recent differential (As opposed to a full restore, an a bunch of incrementals to catch up)
My question is if I do a full backup on Sunday, on Tuesday user Mary creates a file, on Wednesday she deletes it by mistake, then on Friday she realizes it and calls me.
Will that file still exist on Thursday night's differential? Or do I need to load up Wednesday night's backup?
The reason I am asking is because I am trying to go off of tapes and use a NAS instead. I would like to have a Sunday full backup, then have one differential backup that gets overridden nightly, to save space.
By doing this, I will only have a full backup and the most recent differential.
The alternative is to have a weekly backup and 5 differentials, which takes up more space, but I am more protected against morons.