[kdkeyser]

Are live writes replicated in real time, or are they locally staged (which is what Facebook does, I believe)

Also, do you mimic the eventually consistent behaviour of AWS, or do you offer a stronger form of consistency?

[jamwt]

Live writes are written out with 4x redundancy in the local zone, then asynchronously replicated out to the remote zone. Some time later, it is erasure coded into a more space-efficient format, independently in each zone.