Funny.
http://www.theregister.co.uk/2013/08/13/facebook_calls_for_worst_flas_possible/
"The Facebook ask of the industry is make the worst flash possible," Facebook's Jason Taylor told his keynote audience at the Flash Memory Summit on Tuesday in Santa Clara, California. "Just make it dense and cheap."
What Taylor was talking about was flash to be used in "cold storage" – not only for rarely accessed data such as logs and metrics that Facebook uses to do its analytics, but also user content that's rarely – if ever – accessed.
"Photos, video – essentially, after you first create these, they're almost never updated," he said. "The majority of that data will probably be written once and read never – really, it's sad."
Slow, low-endurance flash would be ideal for such an application. "Write-once, read-never is probably the spec for a lot of this,"
http://www.theregister.co.uk/2013/08/13/facebook_calls_for_worst_flas_possible/