January 20, 20251 yr my 2 cache drives are both not working. i am getting the error "Unmountable: wrong or no file system". The file system is btrfs. my diagnostics are attached. How can I fix this? For what it's worth, both cache drives have 99%-100% SSD endurance remaining. tower-diagnostics-20250120-1752.zip Edited January 20, 20251 yr by Ja55ie
January 21, 20251 yr Community Expert run a btrfs scrub and check disk from the web ui disk menu: Please stop the array at the start in maintenance mode:
January 21, 20251 yr Community Expert Solution Since btrfs is detecting data corruption recommend running memtest first, then there are some recovery options here: https://forums.unraid.net/topic/46802-faq-for-unraid-v6/page/2/#findComment-543490
January 22, 20251 yr Author On 1/21/2025 at 3:53 AM, JorgeB said: Since btrfs is detecting data corruption recommend running memtest first, then there are some recovery options here: https://forums.unraid.net/topic/46802-faq-for-unraid-v6/page/2/#findComment-543490 Thank you - I believe BTRFS restore was the solution for me. I was able to copy all the files from the cache to my Disk1. Now for my cache drvies, does that mean that they are toast? I assume I shoulnd't reuse these same drives again for my cache pool? I would have thought that since both drives have 99%-100% SSD endurance remaining that they would be fine. The drive models are rated for 1200TBW but they are consumer drives. Or could this be maybe a nvme controller issue? Should I be investing in "NAS" specific SSDs like WD Red SN700 NVMe? What would be the best way to mitigate this from happening in the future?
January 22, 20251 yr Community Expert On 1/21/2025 at 3:53 AM, JorgeB said: recommend running memtest first Did you?
January 22, 20251 yr Author 8 minutes ago, trurl said: Did you? I completly missed this..... Maybe it is my RAM. And you know what, I did add 1 stick of RAM to my server a couple weeks ago, and it was a random stick as well which was not the same speed as the existing RAM, whcih was a 2x8gb pair that I was using for a long time now without issue. I will run the test when I get home today.
January 24, 20251 yr Author On 1/22/2025 at 11:37 AM, trurl said: Did you? I just did and it passed. Removed the 3rd ram stick but still says Unmountable. At least I was able to get my data.
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