EBS snapshot backups from a FreeBSD zfs file system: zpool freeze?

[Jeremy Chadwick]

On Thu, Jul 04, 2013 at 07:09:13AM -0400, Daniel Feenberg wrote:
> On Wed, 3 Jul 2013, Jeremy Chadwick wrote:
> 
> > scripts.
> >
> > Also, because nobody seems to warn others of this: if you go the
> > ZFS route on FreeBSD, please do not use features like dedup or
> > compression.  I can expand more on this if asked, as they have
> > separate (and in one case identical/similar) caveats.  (I'm always
> > willing to bend on compression as long as the user knows of the one
> > problem that still exists today and feels it's okay/acceptable)
> >
> 
> Please expand on the problem with compression - we have a lot of
> very large, very "fluffy" datasets that compress down about 90% (and
> are accessed in pure sequential order) so compression is very
> attractive to us.

Please see the rest of the thread; I explain the nuance there.  :-)
(Maybe mail delays of some sort are happening somewhere and you haven't
seen the mail yet...)

-- 
| Jeremy Chadwick                                   jdc at koitsu.org |
| UNIX Systems Administrator                http://jdc.koitsu.org/ |
| Making life hard for others since 1977.             PGP 4BD6C0CB |