Hi all,

So one of my M.2 NVME cache drives failed, and my server is now running on only one cache SSD.

 

I ordered 2x NVME 1TB drives that are arriving tomorrow, but I want to figure out the steps I have to take to keep everything running. 

 

I want to replace both cache drives with the new ordered ones. This is my game plan for now:

 

- Replace the failed and broken cache drive

- Copy the contents from the working drive to the new bought drive

- Replace the old cache SSD that is working and include it in the cache pool

 

Can anyone help me with a guide on how to acomplish this?

 

The storage management section of the manual details how to handle cache replacement.

Recommended reading.

 

https://wiki.unraid.net/Manual/Storage_Management#Why_use_a_Pool.3F

 

-- Tom

Note that direct pool device replacement is broken in v6.9.x+, you can still do manually or using other methods.

1 hour ago, JorgeB said:

Note that direct pool device replacement is broken in v6.9.x+, you can still do manually or using other methods.

And what would this other method be? 

This, or manually using the CLI, best solution also depends of the current pool status.

On 12/23/2021 at 10:53 AM, JorgeB said:

This, or manually using the CLI, best solution also depends of the current pool status.

So my second cache drive failed too, luckily I made a backup 10 minutes before using CA Backup / Restore Appdata.

 

Now I want to restore, but when I do so, after the restore process I don't see my Docker containers....

 

Am I missing something?

1 minute ago, EmilioValentino said:

Now I want to restore, but when I do so, after the restore process I don't see my Docker containers....

Did you recreate the docker image?

I don't understand this part, I delete the Docker image and then what? 

I see that my Docker image is in /mnt/user/system/docker in file explorer, and in the Docker settings this is still the location:

 

 

8 minutes ago, JorgeB said:

Did you recreate the docker image?

I just use the delete tick in Docker settings and restart the docker service right? The paths are all correct as far as I can tell..

Have you then gone into Apps->Previous Apps and ticked off the containers you want re-installed into the new docker.img file?

 

4 minutes ago, itimpi said:

Have you then gone into Apps->Previous Apps and ticked off the containers you want re-installed?

I did not know this step was required. 

So just to be sure, I have to reinstall them manually?

26 minutes ago, EmilioValentino said:

I did not know this step was required. 

So just to be sure, I have to reinstall them manually?

That was the last step in the instructions that @Squid provided

 

When you do that step then Unraid will install the binaries for all the apps you tick off with their previous settings intact. 

Thanks a lot sir, worked like a charm! Everything working fine now!

 

i got some udma errors on another ssd, but i read that this might be a bad sata cable.