ZFS - scrub lead to corruption?

[Bob Friesenhahn]

On Mon, 25 Jan 2010, Xin LI wrote:

>> 16) scrub continues to over 75% (I wasn't watching for the exact #) 
>> and then *panic* level 12
>
> Do you have console access to the server?  Try setting up a crash dump
> and see if you can obtain a backtrace?
>
> By the way, 'zpool status -x' may give some information that is useful.

Since scrub automatically re-starts after system reboots, it should 
help to use 'zpool scrub -s pool' immediately after boot (assuming 
there is enough time to do a console login) to stop the existing 
scrub.  This may defer the panic enough to figure out what is going 
wrong.

I used to get system panics here (Solaris 10) during scrub, but it was 
eventually determined that a flaky fiber channel card was to blame. 
Two systems paniced here during 'zfs scrub' and both times it was due 
to problems with an adaptor card.

Bob
--
Bob Friesenhahn
bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/