Got the "your flash drive is corrupted or offline" banner today. The docker tab and I think the VM tab disappeared at this time.

I grabbed the diagnostics before rebooting and my machine apparently didn't recognize the flash drive, as some kind of Dell system check did a scan unprompted; it said everything was fine with my hardware.
So I powered down the machine, plugged the flash drive into Mac and ran a First Aid repair on it in Disk Utility. Disk Utility said the repair completed successfully.
I plugged flash drive into a new USB slot on Dell (I believe both the old and new slots are USB2, on the front of my Optiplex). Then Unraid booted up fine, although the Unraid logo in the upper left corner of the window appeared doubled and there was an error on the bell symbol in the top right that the Unraid API was unavailable. (These fixed themselves after a few moments.) I then downloaded a backup of the flash drive from the GUI and grabbed the diagnostics again (just in case).

Could someone pleased take a look and tell me if I should replace my USB or take other action? Thanks in advance.

 

optiplex-diagnostics-20250504-1921.zip optiplex-diagnostics-20250504-1824.zip

Those later diagnostics look fine, and no sign of corruption or repair of files on flash.

 

Those earlier diagnostics indicate flash had disconnected not long after this:

May  4 17:17:00 optiplex usb_manager: Info: rc.usb_manager  vm_action HomeAssistant disconnect  
May  4 17:17:00 optiplex usb_manager: Info: rc.usb_manager Autoconnect Port Map Port:1-5  vm: HomeAssistant 
May  4 17:17:00 optiplex kernel: usb 1-5: reset full-speed USB device number 3 using xhci_hcd
May  4 17:17:00 optiplex kernel: cp210x 1-5:1.0: cp210x converter detected
May  4 17:17:00 optiplex kernel: usb 1-5: cp210x converter now attached to ttyUSB0
May  4 17:17:00 optiplex usb_manager: Info: rc.usb_manager tty_add ITead_Sonoff_Zigbee_3.0_USB_Dongle_Plus_208678dda1dbed11b9d4f22d62c613ac /dev/ttyUSB0  
May  4 17:17:00 optiplex usb_manager: Info: virsh called HomeAssistant 001 003 Device detached successfully  
May  4 17:17:00 optiplex usb_manager: Info: rc.usb_manager Disconnect 001/003 vm: HomeAssistant 

Some Home Assistant device on the same USB controller maybe?

Hey thanks @trurl, that seems like a good clue. You're right that they are on the same USB controller. For now, I will make sure that the vm_action command doesn't fire anymore, and I will look into getting a separate controller. Will update thread if anything else happens.

Update: After a few days, it's happened again. I went through the same process as before: the banner warning appeared, then the flash drive seemingly wasn't found on reboot since Dell's hardware check kicked in, I ran a First Aid repair on the USB with my Mac, and Unraid successfully booted again after switching ports.

 

That's twice this week; I've been running Unraid for more than a year and haven't experienced this prior. I'm not sure what might have changed recently that could be causing this.

 

I've ordered a new flash drive to be safe, but I'm worried the problem might persist if the drive isn't the root issue. I've attached new diagnostics -- one from after the error but before reboot, and another from after reboot. Any ideas?

 

EDIT: I should note that the same "rc.usb_manager" lines didn't seem to appear in the logs before the flash errors started this time, so I'm guessing it might not be the possible issue noted by @trurl last time, though I'm not 100% sure.

optiplex-diagnostics-20250508-0924.zip optiplex-diagnostics-20250508-1115.zip

Edited May 8, 20251 yr by lining7333

Some potentially useful info after it happened again just now (marking the 3rd time overall): My docker containers and VM were still accessible even after the error banner appeared and the docker/VM tabs disappeared. Sounds similar to what was happening here:

I already installed the "Flash Remount" plugin as a precaution after my initial flash issue, so that hasn't been helping apparently. Not sure what else to do, if anything, until my new flash drive arrives tomorrow.

 

EDIT: Not sure it will make a difference since I already upgraded Unraid successfully in the days between flash incidents #1 and #2, but as a possible usb fix I just replaced all the bz* files at the root of the flash drive with those from a fresh Unraid download, as suggested in places like this: 

Will see how it goes.

Edited May 9, 20251 yr by lining7333