On 3/19/2012 10:29 AM, Justin Finkelstein wrote:
> That's the approach I was considering; with the scenario you've 
> outlined, you mention both diff and incremental jobs.
>
> Would this mean 1 Base + Monthly Full + Weekly Diff + Daily Incremental?

Yes, because a Diff job backs up all file changes since the last 
successful Full. An incremental backs up only the changes since the last 
successful job of any level. A daily Incremental will backup only the 
changes for one day. A daily Diff will backup one day of changes on the 
first day, 2 days of changes on the second day, ... , 30 days of changes 
on the 30th day. So daily Diff will result in much more data being 
transmitted than will daily Incremental backups.

So when backing up over a slow link, 1 Base + Monthly Virtual Full + 
Weekly Diff + Daily Incremental will be less taxing on the slow link 
than 1 Base + Monthly Full + Daily Diff.


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