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Warning flash drive is corrupt - But is it?

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I've been diagnosing some issues on my server today regarding slow docker update downloads. During this time I've had to reboot the server due to the WebUI getting stuck on the downloading window and becoming unresponsive. I'll link to that thread below, as that has a different set of diagnostics:

 

 

One of the reboots didn't go so well. When I managed to get into the WebUI is was very slow and I saw a message pop up stating the USB drive was corrupted. The whole system became unresponsive so I did a hard reset. After the hard reset, Unraid loaded up fine and the array started. It started a parity check due to the non-graceful shutdown.

 

I then saw the corrupted message appear at the top of the screen again and then it disappeared. Everything on the server still seems to be running perfectly fine other than the download issue I'm having.

 

I have a spare USB as I had the foresight to buy two when I initially set up unraid. I would like to know:

 

1. How can I test that my USB is actually corrupted or faulty, considering everything is now up and running and the error has gone?

2. If I need to replace it, how should I go about it?

 

Diag attached. Thanks.

zion-diagnostics-20250502-1513.zip

  • Community Expert

If the error appeared and then disappeared, usually it's a false positive, and nothing logged that I can see that suggests otherwise.

  • Author
43 minutes ago, JorgeB said:

If the error appeared and then disappeared, usually it's a false positive, and nothing logged that I can see that suggests otherwise.

Thanks. I thought that might be the case. Is there any thorough or definitive means of testing it, to be sure?

  • Community Expert

Unless the error stays always showing and/or there are flash drive issues logged, you shoudl be fine.

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