For most people once the system crashes and the pool is unmountable, there have been zero recoveries.
A few people have had this >100% scrub problem, and the only solution was to copy the data off the pool. For a few unlucky souls they couldn't get their data off the pool before it crashed permanently and the data was irretrievable.
I haven't put that in my guide because I've tried to keep my guide to things that you won't find being warned about. FreeNAS 9.2.1.x+ will warn you of pools >80% full. ;)
A few people have had this >100% scrub problem, and the only solution was to copy the data off the pool. For a few unlucky souls they couldn't get their data off the pool before it crashed permanently and the data was irretrievable.
I haven't put that in my guide because I've tried to keep my guide to things that you won't find being warned about. FreeNAS 9.2.1.x+ will warn you of pools >80% full. ;)