Urgent Help Needed: Recovering ZFS Pool on TrueNAS Core After Power Outage (Supermicro Storage, AVGO RAID 6)

[Arwen]

I don’t have any help right now, (got a break in work for a minute or 2), but, ZFS would not normally lose a pool on power loss. This comes up quite often that I wrote a resource on it:

ZFS pools & power loss - you won't lose data

There is sometimes misconceptions about ZFS losing data due to power loss. The subject of power loss, (or OS crash), and then not being able to import a ZFS pool comes up here in the forums a few times a month. Here is the skinny on what should happen. There are several things to un-pack about power loss affecting ZFS and data loss. Any previously stored data in a ZFS pool can not be / is not lost on power loss. Exception is in hardware failures that affect pool redundancy. Like the loss of b…