On Sep 3, 2009, at 10:32 PM, Tim Cook wrote:
On Fri, Sep 4, 2009 at 12:17 AM, Ross <myxi...@googlemail.com> wrote:
Hi Richard,
Actually, reading your reply has made me realise I was overlooking
something when I talked about tar, star, etc... How do you backup a
ZFS volume? That's something traditional tools can't do. Are
snapshots the only way to create a backup or archive of those?
Below the application, dd would do it. But if you want incrementals,
then
either use the application's backup scheme or zfs send.
Personally I'm quite happy with snapshots - we have a ZFS system at
work that's replicating all of it's data to an offsite ZFS store
using snapshots. Using ZFS as a backup store is something I'm quite
happy with, it's just storing just a snapshot file that makes me
nervous.
The correct answer is ndmp. Whether Sun will ever add it to
opensolaris is another subject entirely though.
Available since b78 with source Integrated in b102.
http://www.opensolaris.org/os/project/ndmp/
But NDMP is just part of an overall data management architecture...
-- richard
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