Anyone using freebsd ZFS for large storage servers?

Daniel Feenberg feenberg at
Fri Jun 1 14:30:37 UTC 2012

On Fri, 1 Jun 2012, Wojciech Puchar wrote:

>>> Assuming that filesystem doesn't need offline filesystem check utility
>>> because it "never crash" is funny.
>> zfs scrub...???
> when starting means crash quickly?
> Well.. no.
> Certainly with computers that never have hardware faults and assuming ZFS 
> doesn't have any software bugs you may be right.
> But in real world you will be hardly punished some day ;)
>> Additionally ZFS works directly at the block level of the HD meaning
>> that it is slightly different to the 'normal' file systems in storing
>> information and is also "self healing"......
> doesn't other filesystem work on block level too? if no - then at what level?

If the OP really intended to stripe disks with no parity or mirror for ZFS 
, then that is probably a mistake. If the disks are /tmp, it might make 
sense to stripe disks without parity, but no need for ZFS. The OP did say
"JBOD", which to me means that each disk is a separate disk partition with
no striping or parity. Again, in that case I don't see any need for ZFS.

As for ZFS being dangerous, we have a score of drive-years with no loss of 
data. The lack of fsck is considered in this intelligently written piece

The link to the emotional posting by Jeff Bomwick is broken, but the 
original is available at:

daniel feenberg

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