flinkz

Thanks itimpi As Jorge already said, this is probably something else and not UAS. When using "smartctl" on the JMS-561 bridge's devices, both show the same serial number. That prevents Unraid from giving both drives unique IDs. So unfortunately the bridge seems to be the problem. I was hoping to use my existing Intel NUC, attach a USB drive enclosure with two HDDs. But it seems that Unraid needs a tower with onboard disk controllers, because all USB drive enclosures seem to use JMS chips and dont' simply forward the drives with all their capabilities.

Hi Jorge, thanks for your reply. So you're saying that UAS is actively disabled in Unraid < v7 (or not compiled into the kernel) and every device is always using usb-storage? That's strange, mostly because the quirk was working/helping on my Raspi. But apart from that, for anyone who might find this thread when searching for a way how to apply storage quirks in Unraid: How are they configured in Unraid?

Hi, I just tried Unraid for the first time using an LC-Power LC-35U3-RAID-2 hard drive enclosure (no on-board raid activated, just two HDDs over USB). Its using a JMS-561 controller from JMicron, which seems to have the typical UAS problems of similar controllers under Linux (e.g., sporadic disconnects, highly probable after reading SMART data). On my Raspberry I simply had to add the quirk "usb-storage.quirks=152d:0561:u" to /boot/cmdline.txt. That disabled UAS and everything worked fine. But where do I do this in Unraid? First I fetched my device and vendor id using "lsusb". It was "152d:0561". Then I tried adding "options usb-storage quirks=152d:0561:u" to "/sys/module/usb_storage/parameters/quirks" and "/etc/modprobe.d/local-disable-uas.conf" but those files vanish after a reboot. Then I found some forum threads referring to "/boot/config/modprobe.d/", so I echoed "options usb-storage quirks=152d:0561:u" to "/boot/config/modprobe.d/local-disable-uas.conf". After the reboot that file was correctly copied to "/etc/modprobe.d/local-disable-uas.conf". But "dmesg | grep -i quirk" didn't include any information, like "usb-storage 2-3.2:1.0: Quirks match for vid 152d pid 0561: 800000". Can anybody help me? Maybe there's another way to get the JMS-561 working? Best regards and thanks in advance, Flinkz