Anyone remember Joyent's Strongspace service? http://www.datacenterknowledge.com/archives/2008/01/21/joyen...
ZFS on Solaris was a non-beta, prime time product at that time, so it's not fair to blame it on "a ZFS thing". Deploying customers on loaner hardware is scrappy and admirable, in a way, but Sun wasn't giving those away two by two - there was no redundancy.
The joyent blog, in those days, alternated between enterprise cloud bullshit-bingo posts and facebook game development. I thought it was a clown operation back then and I suspect it still is.