In the previous post, I talked about how the Drobo uses metadata monitoring to solve the telephone game and make de-allocation possible. But that approach is challenging in complex enterprise environments. Instead, most enterprise arrays use a complex chain of semaphores to interpret signals from the connected hosts about the capacity that can be un-provisioned. On the … [Read more...] about Zero Page Reclaim: Savior of Thin Provisioning?
I began by introducing the core problem: Storage isn't getting any cheaper due to storage utilization and provisioning problems. Thin provisioning isn't all it's cracked up to be, but it has a place. So what's wrong with it? The problem with thin provisioning starts with the telephone game. Did you ever play the telephone game as a kid? Maybe you whisper "I like … [Read more...] about Thin Provisioning: Playing the Telephone Game