SLA - Availability or Durability I seem to be getting more questions lately like, “how many 9s is your object store?” or “how do you calculate 9s?”. The questions need to be narrowed down since those are very broad. For example, when dealing with storage like an object store, there are two types of “9s”. One for durability and one for availability. If you look at AWS S3, they put on their primary site 11 9s of durability which is very good.
"There is no compression algorithm for experience" -- Andy Jassy (AWS)