Hi there.

Yesterday I had a major unraid failure, it started with the webGUI becoming unresponsive, page by page, about 60% of the CPU being used by IOWait. Over time of trying to find the source I discovered the diagnostics command no longer worked, the powerdown/reboot commands no longer worked, rc.d/rc.docker stop and samba stop no longer worked.

Eventually I had to hard power off the system, I rebooted back up and the system was responsive but very quickly had the same issue after starting the array (which I did immediately) requiring another hard power down. After this the flash drive was dead, it is unreadable in my macbook, my windows pc and no longer presents as a boot device. I have a spare and after doing XFS repair the array is running fine, I had a successful parity rebuild and things seem to be going smoothly.

However the system was only 2 weeks old so it seems strange that a 6 month old flash drive would die after 2 weeks of unraid so I thought I would attach the syslog dump I was able to get and gain more insight into what was the failure of the system, I might of not actually fixed the problem or the flash drive failure could be coincidental.

I was running 6.9.0-beta-3x (which ever was the latest on 18 November)

Please see attached syslog

My understanding from the line

Quote

Dec  1 15:44:43 Apollo kernel: usb 1-3: reset high-speed USB device number 2 using xhci_hcd

is the flash drive committed suicide but open to the professional insights.

Thanks

unraidsyslog.txt

Probably worth mentioning that USB3 flash drives are much more prone to failure and since Unraid runs from RAM there is no significant performance advantage to USB3.    I suspect that this is because USB3 drives seem to run much hotter and this is not good for them when they run 24x7.

35 minutes ago, itimpi said:

Probably worth mentioning the USB flash drives are much more prone to failure and since Unraid runs from RAM there is no significant performance advantage to USB3.

Think you want to reword it as "Probably worth mentioning that USB3 flash drives..."

1 minute ago, Squid said:

Think you want to reword it as "Probably worth mentioning that USB3 flash drives..."

Changed it - I thought I had actually written what you suggested - obviously I am not good at proof-reading