Cache Unmountable : not mounted error

[Frankthetank907]

Hi, I have been running my server for almost 2 years with no issues, tonight I was having an issue where my server log file was filling up  

 

       

 

                                                                             so I rebooted the server, when it came back up the second cache drive was missing completely from the system, like I never even had it in there.

I tried reseating the connectors and even tried other connectors from a different drive and it still wouldn't show up, so I tried reducing the cache pool back to 1 drive until I can order a replacement drive. When I tried bringing the array online the remaining cache drive would not mount, it was giving me the "unmountable : not mounted" error, so I went to the drive and checked the BTRFS file system check in read only mode                                                    I also went to the drive and took a capture of the disk log itself                                                                         I connected the "bad" drive to my computer and it shows up in disk management so I am unsure if it is actually bad or not. What can I do from here? I want to try to recover the file system if at all possible, any help is greatly appreciated.

Edited November 2, 2021 by Frankthetank907

[JorgeB]

Because the other device is missing Unraid is not trying to mount the pool degraded (assuming it's raid1), you can do that manually, if successful backup pool contents and re-create the pool after replacing cables on the device that caused issues before.

[Frankthetank907]

4 minutes ago, JorgeB said:

Because the other device is missing Unraid is not trying to mount the pool degraded (assuming it's raid1), you can do that manually, if successful backup pool contents and re-create the pool after replacing cables on the device that caused issues before.

I will give this a shot!

[Frankthetank907]

On 11/2/2021 at 3:18 AM, JorgeB said:

Because the other device is missing Unraid is not trying to mount the pool degraded (assuming it's raid1), you can do that manually, if successful backup pool contents and re-create the pool after replacing cables on the device that caused issues before.

This did the trick, thank you for the help!