This article [1] talks about a 2U server containing 40 1PB drives which would be 40PB/server * 20 servers/rack = 800PB per rack. 102 32TB hard drives in a 4U 1

This article [1] talks about a 2U server containing 40 1PB drives which would be 40PB/server * 20 servers/rack = 800PB per rack. 102 32TB hard drives in a 4U 102 bay JBOD would is the densest magnetic storage can get. If we can put 8 of these in a rack leaving 10U for switches and servers that would be only 26PB per rack. So these 1PB SSDs would be up to 30 times denser. [1] https://www.storagereview.com/news/e2-ssd-form-factor https://www.storagereview.com/news/e2-ssd-form-factor