Just to be transparent, I am no Unraid expert.

I love Unraid, but I mostly just check it a few times a week to keep it up-to-date and otherwise I forget about it.

So my knowledge is definitely lacking.

It's been 3 years since I built my server, so I don't really remember everything that I did back then

I have 2 NVMe 1TB drives that I have configured in Unraid in a RAID 1 pool array using the BTRFS file system.

This pool is used to store the docker appdata directory, a directory that stores my Home Assistant VM image and a backup directory that is primarily used to store backups created by Home Assistant.

1 of these 2 NVMe drives failed today, but since they are setup as a RAID 1 array, everything is working fine.

I've contacted Samsung and they will be sending me a new NVMe to replace the failed one.

I just want to be sure that I follow the correct steps when replacing the failed drive when it arrives.

1. Stop the Unraid Array.

2. Shutdown the server.

3. Physically replace the dead NVMe drive.

4. Startup the server.

5. ???

6. Start the Unraid Array.

It's that bit after starting the server back up, that I'm not 100% sure what I'll have to do.

I know that I'd have to add the new NVMe drive into the existing pool, but is that going to be as simple as just adding it and starting the Unraid Array again?

This is what my Unraid drive allocations look like:

The failed NVMe is circled in red.

The process is covered here in the online documentation.

13 minutes ago, itimpi said:

The process is covered here in the online documentation.

Thank you, that is perfect.