Article Linked in the above topic says:
" For raidz2, do not use less than 6 disks, nor more than 10 disks in each vdev (8 is a typical average)."
(Article link: http://nex7.blogspot.com/2013/03/readme1st.html)
My current setup is RZ3 8x3tb, that I am at over 90% capacity on
I’ve only tested my own setup of RZ2 8x4tb drives. I’m running FreeNAS as a VM with a Dell Perc H200 flashed to IT mode passed through to it. Below are the Crystal Discmark results:
All drives are shucked and in the server, sadly after a 1.5hrs of troubleshoorting 3/4 of my white lables (my new 3) need the 3v pin mod so just ordered some tape to do the mod. So should have some updates sunday.
Just moved all my data onto the 8td pool
I decided on my old 3tb drives to make a pool of 3 vdevs of 2 drive mirrors with 2 spares (as they are older drives now and I dont car about storage efficiency as 8tb should be plenty)
have a lot of testing to do but pretty happy with my new set up
I have an old samsung 850 pro 256gb drive i can throw in somewhere.
I’d be interested in seeing what your performance is like with 3 vdevs of 2 drive mirrors can do performance wise in comparison. While I can’t really swap to it, eventually I’d love to be able to swap out my 8x4tb RaidZ2 array to something like 4 vdevs of 2 with 10tb drives once my media library hits that point.
