Is ZFS production ready?

[Robert Bonomi]

> From owner-freebsd-questions at freebsd.org  Thu Jun 21 06:18:56 2012
> Date: Thu, 21 Jun 2012 12:03:12 +0430
> From: Hooman Fazaeli <hoomanfazaeli at gmail.com>
> To: FreeBSD Questions <freebsd-questions at freebsd.org>
> Subject: Is ZFS production ready?
>
> Dear community
>
> In the past, I built a 8TB ZFS log server on freebsd 7.4.
> However, the system  experienced instablility after long up times.
> My main motive to use ZFS was UFS inability to support large
> file systems.
>
> Now, I want to the same thing on 8.3 and wanted to know
> your opinion on ZFS stability. Is there any success story using
> ZFS in 24x7, large volume, heavy duty servers? Is there any
> other option other than ZFS to build larger than 2TB file systems?

One alternative might be the 'new, improved' UFS -- "UFS2".

I believe it supports filesystems up to 2^73 bytes (2^64 sectors).