cj_obob

Here is my (high-level) plan: I have a 500GB Sata SSD lying around which I would add as a new single cache drive. Then I can already start to rebuild everything from backups, restore app data, get docker and vms working again. Once I got the replacement NVME, I just add it to the cache pool. Then it should mirror to this drive. Next I remove the Sata SSD, leaving me with my new NVME as single cache drive. And then, maybe I purchase another NVME (I have two NVME slots on the Mainboard), add it to the cache pool and let it mirror again. Then I should have a new raid1 cache pool up and running. Any objections?

Thanks for the hint, but I don't even get to the point where Unraid starts the boot process. Meaning, I don't get any output at all, the Mainboard directly thinks "there's a strange device attached, I'm doing nothing", it not even displays the manufacturer's logo from which I usually can enter the Bios. So the problem is kind of on hardware level, I don't get to the point where an Unraid configuration could help...

I disabled all these in the Bios. Still no luck, when re-attaching the NVME I cannot even access the Bios. To doublecheck, I inserted the NVME into my desktop PC. Same experience here: The manufacturer's logo is shown, but no booting and I also cannot access the Bios. I have a little display on the mainboard which showed error code 64 (ASUS Crosshair VI Hero), which means that some not recognized device is attached. Without the NVME it boots fine. Therefore, it really seems that the NVME is broken. I will RMA the drive, since it is less than 2 years old and still far from the TBW...

I have loaded a trial stick, but I got the same bios error. Edit: The boot order was set correctly to boot from the USB stick. Next, I confirmed "Load optimized defaults then boot", and now it booted without issues! Then, I tried my original stick, and it also worked, I can log in again via the Web GUI. The NVME was still removed. So next, I inserted it again. But then, again no display output whatsoever, no boot menu, nothing. I put the NVME in the second slot on my Mainboard to see if the first slot is broken. But same result, no video output. This leaves me with two questions: 1. This indicates that my NVME is broken, right? 2. How can it be that power cycling caused a change in my bios settings which prevent from booting? Note that I didn't have the issue when I just rebooted without power cycling...

Now I managed to connect a monitor. 1. When I remove the NVME and start the server, then I get no output at all. Nothing, no Mainboard manufacture's logo, no bios, nothing at all. 2. When I start it with the NVME connected, I get the Mainboard manufacture's logo and then the attached error (Gigabyte board). The USB stick seems to be ok. I was able to connect it to another computer and read and copy all files on it without problems. Any help is greatly appreciated!

Thanks for your help! I have shut the server down, unplugged power and network cable, waited some minutes, plugged everything in again and started the server. Fans and drives are spinning, but I'm not able to log into the WebGUI anymore 😅 I will need to attach a monitor to troubleshoot. Hopefully I manage to do it in the evening. I will report back!

Hello, yesterday evening, all of a sudden, my cache drive did not work anymore. I was working with the server, and then I noticed that dockers were not available anymore ("Docker service failed to start"). I rebooted the system, but the array wouldn't start because my cache drive is missing. I have only one cache drive, a 1TB Samsung Evo NVME. My questions: Can anyone read from the attached logs what the problem could be? Unfortunately I didn't download the diagnostics before I rebooted, my bad, I know that now... What could be next steps? I have no easy means to insert the NVME into another computer. Could buy some adapter though. Any other means to determine if the drive is just dead and I need to get a new one? I have backups, not fully up to date, but sufficiently. Nevertheless I will go for a mirror pool from now on... Thanks for any help! (Unraid 6.12.10) tower-diagnostics-20250114-0928.zip

Dachte ich mir fast schon... Trotzdem danke für die Rückmeldung

Hallo @mgutt, ich möchte mir mein erstes unraid NAS bauen und bin grad zufällig über diesen Thread gestolpert. Wollte nur nachfragen ob du zufällig noch eines von den Gigabyte C246N-WU2 hast das du verkaufen könntest? Danke und viele Grüße, CJ