Lights don't really respond to errors through IT mode.
If you think the card is bad you can always plug the drives directly in as sata but you need 4 available ports but you may have the wrong /dev thing when you plug back... maybe you can...
does it appear in zpools status now ?
never mind i see it does identify it though with the /dev that is showing it registered as importable at least but obviously failing.
can you try zpool import -d /dev maybe it was referenced this way
or zpool import -f -d /dev Goose
or zpool import -f -FX -d /dev Goose
or even zpool import -f -d /dev Goose -o readonly=on
or some combo :P
So from the ubuntu server side your drives are being references as /dev/sde1 at least for storagepool.... somehow Goose has flown away... I wonder if Goose was also referenced this way because of this in that log
Can you try zpool import -a...
The ubuntu server is the one that has the zpool? (The first log has a bunch of errors from the storage pool not matching the name but I guess we dont care about those partitions)
can you do zpool status from the ubuntu server ?
The log above may just be a quick info as to what's up : cat /proc/spl/kstat/zfs/dbgmsg
Maybe try import -FXn first as it may take a while to see if its possible to recover... may take hours.. see if it even attempts to try.
Oh I see what you mean "Notification system"
Check out the Notification Matchers section. in "notifications" you should be able to add some rules to skip successful backups
https://pve.proxmox.com/pve-docs/chapter-notifications.html
Maybe...
Maybe try -FXn first as it may take a while to see if its possible to recover
Also try -F ... And finally -FX as a last resort on the import option which may do recovery option.
https://openzfs.github.io/openzfs-docs/man/v2.2/8/zpool-import.8.html