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So I have this issue where sometimes, the server hangs and I'm not able to access shares or docker services. I notice it when my uptime monitor starts signalling that websites are unreachable. Sometimes this happens every other day, or it happens once a month. Usually it comes back after a few hours(!) and I can do a safe reboot, sometimes I have to force restart. I attached diagnostics and the uptime logs supermicro-diagnostics-20240324-1425.zip

Right! I did that and it works. Thanks a lot!

I'm unable to start the array. After doing what you said (which was my first guess), I get the following issue: ``` Too many wrong and/or missing disks! ```

I'd like to remove it. How to do so?

Yes. And if not, the question remains when I want to replace my drives anyway.

Hi, After moving my disks from one system to the other I added a 4TB disk to the parity set. I should've probably just replaced the old one instead of extending it with a second disk, but here we are. Then a data disk broke down, and I had to replace it. But as my 2TB parity is still there, it's not big enough. What would be a good way to go forward? I've added my diagnostics as an attachment. supermicro-diagnostics-20231218-1500.zip

Everything works now. Thank you so much @JorgeB!

@JorgeB I assume I need to follow this procedure next: https://docs.unraid.net/unraid-os/manual/storage-management/#rebuilding-a-drive-onto-itself

@JorgeB first of all: thank you for your time! Done: diag attached supermicro-diagnostics-20231124-1019.zip

Started the array with one disk 1 "no device". Diagnostics attached supermicro-diagnostics-20231123-2131.zip

Parity check is completed. So now I would take one disk out, as in, set the disk to "no device", and run diagnostics again? Results: Added diagnostics as well (for the record, it says "supermicro" that's my NAS name as my previous machine was a Supermicro) supermicro-diagnostics-20231123-2038.zip

Yes, I guess I let the sync finish. I'll do a parity check just to be sure. This is my diagnostics, just to be sure. supermicro-diagnostics-20231123-1633.zip

Wouldn't I want to get parity working first? When I do this I get this message: > Start will disable the missing disk and then bring the array on-line. Install a replacement disk as soon as possible. > [ ] Yes, I want to do this This sounds to me like it'll try to rebuild from 2 disks + parity, does that make sense?

What does this mean. Where do I need to do what? Sorry for my ignorance. My question is still, how do I do this? This is my current situation: Step-by-step (is this correct?): stop array set parity 1 to disk `(sde)` set disk 1 to disk `(sdd)` set disk 2 to disk `no device` set disk 3 to disk `no device` start array do parity check set disk 1 to disk `no device` set disk 2 to disk `(sdc)` start array do parity check set disk 2 to disk `no device` set disk 3 to disk `(sbd)` start array do parity check set disks 1,2,3 to resp sdd, sdc, sdb start array everything works? Does this change when I would like to move from the 2TB disk to the 4TB disk (as I'm planning to replace all disks with 5 4TB disks)

Thank you for the response. I understand that it happens, which is fine-ish. It's explainable, so for me that is ok. What does this mean. Where do I need to do what? There was not such an option to check parity was valid... Where should that have been?