I'm looking to create a NAS with versioning for non-technical users
(Windows and Mac). I want the users to be able to simply save a file,
and a revision/snapshot is created. I could use a revision control
software like SVN (it has autoversioning with WebDAV), and I will if
this filesystem level idea does not pan out. However, since this is a
NAS for any files(Word, JPEGs, MP3, etc), not just source code, I
thought doing this at the filesystem level via some kind of COW would be
better.
So now my (ignorant) question: can ZFS make a snapshot every time it's
written to? Can all writes be available as snapshots so all previous
"versions" are available? Or does one need to explicitly create a snapshot?
I've read about auto-snapshot. But that seems like nice cron job
(scheduled snapshots). Am I mistaken?
I looked in to ext3cow, next3, and then some. ZFS seems the most stable
and ready for use. However, is the above possible? Or how is it
possible? Is there a better way of doing this? Other filesystems?
Thanks for ideas and suggestions,
Simon
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