On Thu, Dec 8, 2011 at 1:31 PM, Alan McKay alan.mckay@gmail.com wrote:
My non-tape solution of choice is definitely rsync => box with ZFS, snapshot however often you'd like. => forever incrementals.
For more redundancy and performance, add more ZFS boxes, do replication between them.
Not sure whether ZFS now makes this OT - if so, sorry for not putting "OT:" in the subject.
Anyway, I have a ZFS storage unit here and this is my first exposure to it so I don't really know about any of this ZFS magic that I often hear about. I'm sure I could google and find some reading on the matter but am wondering if anyone has some recommended reading that is concise and to the point, and will give me a good intro.
ZFS gives you several options missing in linux filesystems. The ones likely to be important for the filesystems holding backup archives are: compression block-level de-dup snapshots incremental snapshot send/receive easy-to-expand combined volume/raid management
Backuppc does compression and de-dups at the file level with hardlinks so you get some of the missing features anyway, but it's not quite the same.