zfs discuss - Feb 2007 - .zfs snapshot directory in all directories

Since I have been unable to find the answer online, I thought I would
ask here.  Is there a knob to turn to on a zfs filesystem put the .zfs
snapshot directory into all of the children directories of the
filesystem, like the .snapshot directories of NetApp systems, instead
of just the root of the filesystem?

Thanks!
Thomas

On 2/26/07, Thomas Garner <thomas536 at gmail.com>
wrote:
> Since I have been unable to find the answer online, I thought I would
> ask here.  Is there a knob to turn to on a zfs filesystem put the .zfs
> snapshot directory into all of the children directories of the
> filesystem, like the .snapshot directories of NetApp systems, instead
> of just the root of the filesystem?
No. File an RFE? :)


-- 
Regards,
Jeremy

for what purpose ?
 
 
This message posted from opensolaris.org

> 
> for what purpose ?
For me, I''d say ease of use.  Using Netapp .snapshot directories,
it''s
often easier to find files in a snapshot by relative path from the
directory in question rather than from all the way back at the top of
the filesystem.

In addition, others have mentioned zone mounts:
http://www.opensolaris.org/jive/thread.jspa?messageID=91301

-- 
Darren Dunham                                           ddunham at taos.com
Senior Technical Consultant         TAOS            http://www.taos.com/
Got some Dr Pepper?                           San Francisco, CA bay area
         < This line left intentionally blank to confuse you. >

> > for what purpose ?
Darren''s correct, it''s a simple case of ease of use.  Not
show-stopping by any means but would be nice to have.

Thomas

I am no scripting pro, but I would imagine it would be fairly simple to create a
script and batch it to make symlinks in all subdirectories.
 
 
This message posted from opensolaris.org

On 2/27/07, Eric Haycraft <earl507 at yahoo.com>
wrote:
> I am no scripting pro, but I would imagine it would be fairly simple to
create a script and batch it to make symlinks in all subdirectories.
>
>
I''ve done something similar using NFS aggregation products. The real
problem is when you export, especially via CIFS (SMB) from a given
directory. Let''s take a given example of a division based file tree. A
given area of the company, say marketing, has multiple sub folders:

/pool/marketing, /pool/marketing/docs, /pool/marketing/projects,
/pool/marketing/users

Well, Marketing wants Windows access, so you allow shares at any
point, including at /pool/marketing/users. Well, symlinks don''t help,
and a snapshot mechanism needs to be there at the users subdirectory
level.

Some would argue to promote /pool/marketing/users into a ZFS
filesystem. Well, the other problem arises, in that at least with NFS,
you need to share per filesystem and clients must multiple mount the
filesystem (/pool/marketing, /pool/marketing/users,
/pool/marketing/docs, etc). Mounting /pool/marketing alone will show
you empty directories for users, projects, etc if further mounting
doesn''t exist.

Yeah.. automounts, nfsv4, blah blah :) A lot of setup when all you
need is pervasive ".snapshot" trees similar to NetApp. I just hope
that don''t have a bloody patent on something as simple as that to
solve this.

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