Adding 3rd SSD to 2-drive Raid1 Cache Pool

[Andiroo2]

Hi all,

 

I couldn’t find this answer myself so I thought I’d create a post here to call it out. I had a 2-drive SSD cache (Unraid v6.8.3, 2x 500GB WD Blue in a 500GB Raid1 pool) and I wanted to add a 3rd drive (1TB WD Blue) to increase the capacity of the cache to a 1TB Raid1 pool. 
 

It was...simple. I stopped the array, added a 3rd slot in the cache pool, selected the new SSD in the 3rd cache slot, and started the array again.

 

Easy!  I now have a 1TB SSD cache consisting of 2x 500GB drives and 1x 1TB drive.  

[JorgeB]

Answer for that is in many places, including the wiki and the FAQ on this sub-forum.

[Andiroo2]

I just wasn’t able to find that info via Google or via the Unraid forum search. Not saying it doesn’t exist, but I couldn’t find it so I thought this would help others in my position.