I have a pool of 4 volumes. My backup software was unable to perform
backups anymore on it. I found the culprit file(s) causing the problem,
and when I tried to move/copy or even select the files (form a windows
workstation) then entire pool would deactivate.

So I decided to do a NSS /poolverify on it. It found errors. But now it
is stuck in the MAINTENANCE state, and I cannot re-activate the volumes
due to error 20810 (a volume has been flagged to not activate).

Is there anyway I can get rid of the maintenance state to activate and
mount my volumes to see if I can at least do a quick current backup of
what is there? Just for the most current data... everything else I will
go to an older backup for.