[kwlug-disc] btrfs/zfs for backups

[B.S.]

Depends upon your situation / environment. If you're SOX constrained, 
you're not allowed to delete anything, ever. So deduplication becomes 
very very important as each new night's backup pours into the storage pit.

I imagine all government has the same issue, given Access To Information 
requirements. That's part of why HeartBleed / CRA was a little scary ... 
just let them get behind the storage sink's curtains and ... just how 
far back could they have gotten, and what might have been deleted or 
poisoned. (Hopefully, as I said at the time, publicly accessible systems 
are appropriately cordoned off, so that was never going to be an issue.)

Mind you, to be fair, all the de-duplication and so on can happen behind 
the curtain of the storage sink, isn't time constrained, and horsepower 
suckage isn't impacting user / response times.


On 12/03/2014 12:39 AM, Chris Irwin wrote:
>
> Ultimately, I'm of the same opinion on compression and dedup support:
> It's really not worth it versus the cost of another disk. I only
> mentioned it because multiple static large full backup images is just
> about the only scenario I'd find dedup actually useful (especially since
> a backup server presumably won't have disk activity during the day, and
> can run a dedup scan when workstations are not backing up). That
> usefulness also depends on backupexec's format.