Google’s Nearline Cold Data Storage Service Hits General Availability

Apparently "Nearline" comes from "nearly online" because the waiting period until the first byte from storage arrives is on the order of seconds, not hours (like for Amazon Glacier). And the price (not taking into account retrieval costs, etc...) of 1 cent per gigagbyte-month is the same as Glacier's.

However, I wasn't able to find any durability figures like Glacier's 99.999999999%. Anyone know what's up with that?