Welp I'm having problems.
Just got a Dell H310. Flashed it to P16 IT mode and replaced my old Dell H200.
Instantly pool degraded. Ok reboot, same thing, two drives are not seen/missing. Update to P20 and reboot many times. Ok both drives are now seen, but one has failed. Whatever I was going to replace it anyways, can't replace/offline as a scrub is in process... Great ok wait out the scrub, can't offline the drive, shutdown, pull the drive, replace with a new WD 6TB NAS. Back to two drives not being seen (The drive I put in is seen)
dmesg just flat out doesn't show da2/da3.
python /usr/local/www/freenasUI/middleware/notifier.py serial_from_device da2
see's nothing.
I've tried swapping the sas breakout cable, swapping the old drive back in. changing HBA ports, changing pcie slots. At this point I might just pop the H200 back in.