Things went wrong at the weekend on my unraid box - constant 500 server errors, like every 2 minutes. I read some stuff and removed some plugins and got that sorted out, so far at least, but at one point I couldnt even ssh into the box so I had to do a hard reset. It was just starting a scheduled parity check at that time, just a few percent done, so the unclean shutdown wasn't (I thought!) going to be a huge pain.

I started the server up and the array started with a parity check, which Ithought got to about 18% when I left it for the night. I came back in the morning and it was at 0.6%.

10 hours later I have reached 1.6%!

My setup is a little unfortunate - I bought a 10 bay Sabrent hard drive cage which was for das disks, this was before I even knew unraid was a thing! I then bought a Protectli Vault to run unraid - my original thoughts were just to have storage I could attach to my laptop as when and if needed. I have since bought another 10 bay same model and I now have an array of 12 8TB data drives and 2 parity drives. I knoiw disk access would NOT be the fastest as they are both connected nominally over usb 3. whatever, claimed to be 10GBS.

One cage is C to C, the other C to A as the pc only has a single usbC port.

I has worked fine, but parity checks would take a couple of days usually. I really only use unraid for the Arrs and Emby server. And an unmanic transcoder server doing no work, sending jobs to 2 second hand ThinkCentre mini pcs.

I am a bit concerned about some log entries about something probably being "busted" also saw an out of memory error in the log recently. Normally it sits at around this according to the main tab;

System: 6.69 GiB
ZFS cache: 11.5 GiB
Docker: 12.3 GiB
Free: 32.2 GiB

When the server was down I pulled the usb connections and reconnected them, they seem ok - I checked them with a usb cable checker. Apart from putting all the drives into a case and attaching all to a new motherboard - basically starting again I don't know what to do, but I have to say it was running fine with no issues until the weekend.

Would someone look at my diagnostics and give me some pointers as to what is going wrong please ? I really don't have a clue about linux in generall, nor what log entry is relevant and what is not.

Thanks

Ian

unraidnas-diagnostics-20250805-1752.zip

Edited August 5, 2025Aug 5 by IanMcLeish
Would NOT be the fastest

USB is not recommended for array or pool devices, and there are multiple connection issues logged. Also, there appear to be writes going on to the array.

Post the output from lsusb -vt; disabling UASP may help with the errors.

root@UnraidNAS:~# lsusb -vt

/: Bus 001.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/12p, 480M

ID 1d6b:0002 Linux Foundation 2.0 root hub

|__ Port 002: Dev 002, If 0, Class=Hub, Driver=hub/4p, 480M

ID 2109:2822 VIA Labs, Inc.

|__ Port 001: Dev 005, If 0, Class=Hub, Driver=hub/4p, 480M

ID 2109:2822 VIA Labs, Inc.

|__ Port 002: Dev 008, If 0, Class=Hub, Driver=hub/4p, 480M

ID 2109:2822 VIA Labs, Inc.

|__ Port 003: Dev 003, If 0, Class=Hub, Driver=hub/4p, 480M

ID 2109:2822 VIA Labs, Inc.

|__ Port 001: Dev 007, If 0, Class=Hub, Driver=hub/4p, 480M

ID 2109:2822 VIA Labs, Inc.

|__ Port 002: Dev 010, If 0, Class=Hub, Driver=hub/4p, 480M

ID 2109:2822 VIA Labs, Inc.

|__ Port 005: Dev 006, If 0, Class=Human Interface Device, Driver=usbhid, 12M

ID 051d:0002 American Power Conversion Uninterruptible Power Supply

|__ Port 006: Dev 009, If 0, Class=Wireless, Driver=btusb, 12M

ID 0cf3:e300 Qualcomm Atheros Communications QCA61x4 Bluetooth 4.0

|__ Port 006: Dev 009, If 1, Class=Wireless, Driver=btusb, 12M

ID 0cf3:e300 Qualcomm Atheros Communications QCA61x4 Bluetooth 4.0

/: Bus 002.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/6p, 10000M

ID 1d6b:0003 Linux Foundation 3.0 root hub

|__ Port 001: Dev 002, If 0, Class=Mass Storage, Driver=usb-storage, 5000M

ID 058f:6387 Alcor Micro Corp. Flash Drive

|__ Port 002: Dev 003, If 0, Class=Hub, Driver=hub/4p, 10000M

ID 2109:0822 VIA Labs, Inc.

|__ Port 001: Dev 005, If 0, Class=Hub, Driver=hub/4p, 10000M

ID 2109:0822 VIA Labs, Inc.

|__ Port 001: Dev 026, If 0, Class=Mass Storage, Driver=uas, 10000M

ID 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge

|__ Port 002: Dev 010, If 0, Class=Mass Storage, Driver=uas, 10000M

ID 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge

|__ Port 004: Dev 012, If 0, Class=Mass Storage, Driver=uas, 10000M

ID 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge

|__ Port 002: Dev 007, If 0, Class=Hub, Driver=hub/4p, 10000M

ID 2109:0822 VIA Labs, Inc.

|__ Port 001: Dev 017, If 0, Class=Mass Storage, Driver=uas, 10000M

ID 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge

|__ Port 002: Dev 020, If 0, Class=Mass Storage, Driver=uas, 10000M

ID 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge

|__ Port 003: Dev 022, If 0, Class=Mass Storage, Driver=uas, 10000M

ID 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge

|__ Port 004: Dev 024, If 0, Class=Mass Storage, Driver=uas, 10000M

ID 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge

|__ Port 003: Dev 004, If 0, Class=Hub, Driver=hub/4p, 10000M

ID 2109:0822 VIA Labs, Inc.

|__ Port 001: Dev 006, If 0, Class=Hub, Driver=hub/4p, 10000M

ID 2109:0822 VIA Labs, Inc.

|__ Port 001: Dev 011, If 0, Class=Mass Storage, Driver=uas, 10000M

ID 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge

|__ Port 002: Dev 014, If 0, Class=Mass Storage, Driver=uas, 10000M

ID 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge

|__ Port 003: Dev 016, If 0, Class=Mass Storage, Driver=uas, 10000M

ID 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge

|__ Port 004: Dev 018, If 0, Class=Mass Storage, Driver=uas, 10000M

ID 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge

|__ Port 002: Dev 009, If 0, Class=Hub, Driver=hub/4p, 10000M

ID 2109:0822 VIA Labs, Inc.

|__ Port 001: Dev 019, If 0, Class=Mass Storage, Driver=uas, 10000M

ID 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge

|__ Port 002: Dev 021, If 0, Class=Mass Storage, Driver=uas, 10000M

ID 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge

|__ Port 003: Dev 023, If 0, Class=Mass Storage, Driver=uas, 10000M

ID 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge

|__ Port 004: Dev 025, If 0, Class=Mass Storage, Driver=uas, 10000M

ID 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge

|__ Port 003: Dev 013, If 0, Class=Mass Storage, Driver=uas, 10000M

ID 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge

|__ Port 004: Dev 015, If 0, Class=Mass Storage, Driver=uas, 10000M

ID 174c:55aa ASMedia Technology Inc. ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge

/: Bus 003.Port 001: Dev 001, Class=root_hub, Driver=vhci_hcd/8p, 480M

ID 1d6b:0002 Linux Foundation 2.0 root hub

/: Bus 004.Port 001: Dev 001, Class=root_hub, Driver=vhci_hcd/8p, 10000M

ID 1d6b:0003 Linux Foundation 3.0 root hub

root@UnraidNAS:~#

Thanks for looking, I didn't know about Unraid when I started buying hardware, just wanted to rescue data off a very old, neglected and dying Windows media centre.

Click on the flash drive, scroll down to the Syslinux configuration section, make sure Menu View is enabled, top-right, and add after /bzroot to the default boot option, the one in green:

usb_storage.quirks=174c:55aa:u

Like the example below, but with 174c:55aa, then reboot and retest. That may help with the errors, but note that with so many USB devices it may also be a controller bottleneck; a parity check requires that all devices are read at the same time.

Thanks very much JorgeB.

So does Unraid see each sata disk as a usb device? The hard drive cage must be even dumber than I expected it to be!?

I'll give that a go.

Oh and I jusr realised that after the weekend I had disabled Squid's turbo write mode plugin, maybe that may help too?

Thanks again for your super fast help.

Ian

Oh, I'm so sorry, I am not good with Linux. I know you said menu mode, not raw mode, but where would I add this into the boot options?

default menu.c32

menu title Lime Technology, Inc.

prompt 0

timeout 50

label Unraid OS

kernel /bzimage

append pcie_acs_override=downstream,multifunction initrd=/bzroot

label Unraid OS GUI Mode

menu default

kernel /bzimage

append pcie_acs_override=downstream,multifunction initrd=/bzroot,/bzroot-gui

label Unraid OS Safe Mode (no plugins, no GUI)

kernel /bzimage

append initrd=/bzroot unraidsafemode

label Unraid OS GUI Safe Mode (no plugins)

kernel /bzimage

append initrd=/bzroot,/bzroot-gui unraidsafemode

label Memtest86+

kernel /memtest

Do I just add it with a comma after pcie_acs_override=downstream ?

So ;

label Unraid OS

kernel /bzimage

append pcie_acs_override=downstream,usb_storage.quirks=174c:55aa,multifunction initrd=/bzroot

Is that it?

Sorry again!

append pcie_acs_override=downstream,multifunction usb_storage.quirks=174c:55aa initrd=/bzroot

Thank you so much JorgeB!

My parity check has now reached 4%, running for 3 days 8 hours, so I'm going to cancel that and do a reboot.