zfs discuss - Jun 2011 - Versioning FS WAS:question about COW and snapshots

On Tue, Jun 14, 2011 at 11:56 PM, Richard Elling
<richard.elling at gmail.com> wrote:
>> So now my (ignorant) question: can ZFS make a snapshot every time
it''s written to?
>
> I hope not, that would suck most heinously.
>
>> Can all writes be available as snapshots so all previous
"versions" are available?
>
> That would suck worse.
Since ZFS is a COW FS, how would tracking individual writes suck worse ?

I thought I had heard that both versioning and auto-archiving were on
the ZFS roadmap years ago. I have an application where SAM-FS is a
good fit due to it''s auto-archive (and versioning) capability, but it
cannot meet our performance needs.

-- 
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Paul Kraus
-> Senior Systems Architect, Garnet River ( http://www.garnetriver.com/ )
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