[BBLISA] ZFS snapshots versus Netapp snapshots

[Edward Ned Harvey]

I wonder if this is just something people design for and live with?  Or if
perhaps there's a better way to config my system, that somebody would care
to suggest?

 

I have the following ZFS filesystems:

/share

/share/users

/share/users/eharvey

                (and a bunch of others)

 

I shared /share via Samba.  I mounted it from my windows laptop, and I'm
browsing around working on stuff.  I screw up some file, and I want to
restore from snapshot.

.         In netapp:

o   I would just type in ".snapshot" in any subdirectory to access the
snapshots for that directory

.         In zfs:

o   You go into the ".zfs" subdirectory, but you can't do this from any old
subdirectory.  The ".zfs" subdirectory only exists as the direct child of
the mountpoint.

o   I cannot restore my files by going to /share/.zfs because that
filesystem doesn't contain "eharvey"  . That is, /share/.zfs only contains
an empty subdirectory mountpoint "users"   and the same is true for users.
The directory /share/users/.zfs only contains the empty subdirectory
"eharvey"

o   Given the above two points, the only correct way for me to access my
snapshots is precisely /share/users/eharvey/.zfs   The only correct answer
is to browse to the hidden ".zfs" subdirectory of the deepest level
subdirectory mountpoint in the path.

o   If you're on a terminal and you know what you're doing, you can figure
out where the correct location is for the ".zfs" subdirectory.  But if
you're just browsing via CIFS, there's no way to know.  You have to guess
and check, starting with the deepest level and working your way upward until
you find it.

 

Is this the same behavior you guys have?  Are you doing something smarter in
your architecture than what I have done already?

 

Thanks for your help.

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