Backing Up ZFS

[Wojciech Puchar]

> As ZFS is becoming more stable and approaching production ready, how
> would one "Backup" ZFS? In terms of backing up to an external media or
> storage rather than doing snapshots. In case the the server
> spontaneously bursts into flames.

use tar it's filesystem independent if you have tape drives.

actually you can tar to anything even multivolume backup using USB 
connected drivers.

> I'm just curious at what others are currently doing to back up huge
> amounts of data. eg. 2TB and onwards.
>
> 1. ZFS -> External HDD (External HDD aren't even big enough to handle
> greater than 2TB) Taken offsite daily
> 2. ZFS -> Another ZFS box (Not sure how you take it off site daily)
> 3. ZFS -> Remote ZFS using RSync (Living in Australia, there are
> limits on data transfer of a few hundred GB per month, to costs are
> prohibitive)

you don't require your backup target to have ZFS.

all your 3 solutions are filesystem-independent