It's not uncommon for us to buy rack machines with much more RAM than disk. The disk is almost uninteresting, except that we need a place for an OS to boot from

It's not uncommon for us to buy rack machines with much more RAM than disk. The disk is almost uninteresting, except that we need a place for an OS to boot from, and some other legacy things. I suspect I would be fine with much of our datacenter being diskless (and put disk -- ahem, I mean storage -- where it is needed). Local disk is a headache more often than not.