Interesting, can’t say i’ve noticed a problem on my 4.4 node yet, and that’s using either intel or marvel controllers in plain old JBOD (Depends which ports the disk connected to on my motherboard)
Edit: Ah difference is I’m not using virtio-SCSI so I don’t think rockstor is talking directly to the disks (I.e they’re still virtual disks but raw devices mapped directly to the underlaying physical devices)