[OpenIndiana-discuss] ZFS Snapshot question

[Mark Creamer]

Excellent information. Thanks again all

On Fri, Aug 3, 2012 at 9:06 AM, Jan Owoc <jsowoc at gmail.com> wrote:

> On Fri, Aug 3, 2012 at 6:43 AM, Kees Nuyt <k.nuyt at zonnet.nl> wrote:
> > On Thu, 2 Aug 2012 14:59:13 -0600, you wrote:
> >>Having said that, I believe they need to be mounted in empty
> >>directories, so you'd have to do:
> >># mv datastore/vmimages/server1 datastore/vmimages/server1.bak
> >># zfs create -o [options here] datastore/vmimages/server1
> >># cp -a datastore/vmimages/server1.bak/* datastore/vmimages/server1
> >># rm -r datastore/vmimages/server1.bak
> >
> > Another procedure would be to
> > - take all VM's down
> > - zfs rename datastore/vmimages to datastore/oldimages
> > - zfs create datastore/vmimages
> > - zfs create datastore/vmimages/server1
> > - mv /datastore/oldimages/server1/* /datastore/vmimages/server1/
> > - zfs create datastore/vmimages/server2
> > - mv /datastore/oldimages/server2/* /datastore/vmimages/server2/
>
> Actually, Kees' procedure is better. I didn't remember off the top of
> my head whether one can do an "mv" command between different
> filesystems (some OSes don't like it; OI seems to handle it ok, and
> does it even across pools).
>
> While you're recreating the filesystems anyway, I suggest you do a
> quick read through the possible options for creating a new filesystem
> - some can only be specified on creation. Ones I like to set include
> atime (off), casesensitivity (mixed, for SMB sharing), nbmand (on),
> utf8only (on), normalization (formD, for cross-OS compatibility),
> checksum (sha256), snapdir (visible - I like to see the .zfs).
>
> Jan
>
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-- 
Mark