How safe is ZFS to use for a home user?

Wes Morgan morganw at
Sat Dec 22 07:51:10 PST 2007

On Sat, 22 Dec 2007, Gary Jennejohn wrote:

> On Fri, 21 Dec 2007 22:34:07 -0500
> "John Klimek" <jklimek at> wrote:
>> Has anybody ever lost data due to any bugs or anything like that?  I'm
>> going to use this ZFS as my primary storage medium (and poor man's
>> backup solution), so I would be devastated if I lost my entire array
>> due to a bug or other issue (aside from losing two hard drives in a
>> three hard drive RAID-Z array).
> I lost a mirror on 2 SATA drives when I installed a new mobo. A plain
> ZFS concatenation of 2 partitions on a SCSI drive didn't get lost. I've
> never lost data due to a crash.

If it was a zfs mirror, you probably could have recovered it with a forced 
import or something similar.

> Might have been pilot error. Might have had something to do with the
> way the new mobo assigned the disks. Luckily I had a backup of the
> really important stuff.

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