[PC-BSD Testing] Panic from ZFS

Edward O'Callaghan victoredwardocallaghan at gmail.com
Fri Oct 24 17:49:27 PDT 2008

Well Kris,

ZFS is not production ready in FreeBSD. That is why it is marketed as
However, Its unlikely that you will get data loss if you have >=1GB of
RAM on 64bit hardware. I'm not completely clear about 32bit hardware
with only 1GB but its prob better safe then sorry.


2008/10/25 Kris Moore <kris at pcbsd.com>:
> Edward O'Callaghan wrote:
>> Exactly Rod.
>> Although I would not regards the ZFS port as totally unstable/unusable
>> but there are min requirements that should be put in place to protect
>> people/users from data loss.
>> For a production version, not putting these restricts in place if it
>> is a known is some what ignorant.
>> You and I may find it fun, but when someone loses data after a few
>> months of "oh but it was running fine" is no so fun for them. Are we
>> not aiming to be more stable then Linux or are we trying to play the
>> kernel panic game?
>> Bill; Try filling that zpool up some more then run a scrub, the
>> following _may_ happen, your whole zpool will be corrupted with a nice
>> kernel panic else just a kernel panic with a unbootable system.
>> ZFS in FreeBSD is no where near as stable as it is in OpenSolaris.
>> Just put the restrictions into place. I am giving you informed advice
>> here (I'm from the OpenSolaris community as well btw).
>> This will be the last warning.
>> Best Regards,
>> Edward.
> Well, I can go ahead and put a lockout on ZFS if memory is less than
> <1GB in the next ISO release. Will 1GB be guaranteed to be stable
> though? I would hate to lock it down at <1GB, and find out that really
> it needs 2GB, or even 4GB to be fully stable and production ready. We
> just need to be sure that whatever we specify as the minimum *will* work
> under all loads.
> --
> Kris Moore
> PC-BSD Software
> http://www.pcbsd.com
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