00340nas a2200121   4500000000100000008004100001100001300042700002300055700001600078700002000094700002100114245008300135       2015                            d1 aYing Liu1 aNavaneeth Rameshan1 aEnric Monte1 aLeandro Navarro1 aVladimir Vlassov00aProRenaTa: Proactive and Reactive Tuning to Scale a Distributed Storage System