egrigson wrote:Have you seen other customers doing anything similar?
We went down a very similar route as you for the same reasons. We wanted to keep monthly/quarterly/yearly backup copies, exactly as offered in the backup copy job setup. But our backup size was 6TB, and we didn't have the space to keep 6TB monthly, quartlerly etc . . . . = 100TB+
So we kept to the backup copy job (you decided to use a backup job?) with one job doing monthly, keeping 3 restore points, and another job going quarterly (100 days was the max I could select) keeping 3 restore points.
Then annually we backup copy to an external USB.
The advantage is that these are incremental, so the size on disk is about 7TB for each (monthly and quarterly) = 14TB, rather than the 100TB+ which we were heading for (until we stopped!).
We haven't got FULL monthly going back a year, but monthlies since the last quarterly seems about right, then quarterlies going back a year.
I also wanted to use Windows 2012 Dedupe to reduce this 14TB, but keep finding references to dedupe not working on files bigger than 1TB . . . or at least advisories not to use it on files bigger than 1TB? Anyone got comments on this, as I cannot find any MS documentation saying anything about max filesize for dedupe.