As a note to this: while the above linked chassis is indeed JBOD, and one of the parent posts also mentions the 90 disk JBOD chassis, there's an intermediate o

As a note to this: while the above linked chassis is indeed JBOD, and one of the parent posts also mentions the 90 disk JBOD chassis, there's an intermediate option which thanks to some sort of server-geometry-tetris-magic is actually a proper machine as well as supporting 72 drives. http://www.supermicro.com/products/chassis/4U/?chs=417 http://www.supermicro.com/products/chassis/4U/?chs=417 (Disclaimer/answer to the parent post: we use the 24 drive unit for the GPU compute nodes in one of our clusters, and the 45 drive JBOD units for storage nodes in the same cluster. We have had a very positive experience with both (to the point that I got the 24 drive one as my home fileserver), as well as the Supermicro customer support for such.)