Paul Mather wrote:

Do you have swap on your geom_mirror?

Yes.



> In earlier versions of
geom_mirror, even a clean shutdown would cause a mirror to be marked
degraded if swap was still active.  The fix at the time was to amend the
stop_cmd in /etc/rc.d/swap1 to do an explicit "swapoff -a" (or similar).
Later modifications rendered this explicit step unnecessary.

Yes, that hit me too (on another machine), but it would render a disk stale, it would not become lost.




I also remember a short window in which I experienced the same problem
of losing a drive/consumer at reboot when a mirror would become degraded
(in my case, due to the TIMEOUT - WRITE_DMA problems I was having with
5.x/6.x).  This seemed to go away with a subsequent upgrade.

Hmm, this might be it, altough I'm usinc SCIS, so no DMA stuff...



So, if you are planning to upgrade when 5.4-RELEASE rolls around, you
might find that these problems disappear.

I am planning to do that as soon as it's released. I hope it will help.



 bye & Thanks
        av.
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