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SafeStore: A Durable and Practical Storage System Ramakrishna Kotla, Lorenzo Alvisi, and Mike Dahlin
 

Summary: SafeStore: A Durable and Practical Storage System
Ramakrishna Kotla, Lorenzo Alvisi, and Mike Dahlin
The University of Texas at Austin
Abstract
This paper presents SafeStore, a distributed storage
system designed to maintain long-term data durabil-
ity despite conventional hardware and software faults,
environmental disruptions, and administrative failures
caused by human error or malice. The architecture
of SafeStore is based on fault isolation, which Safe-
Store applies aggressively along administrative, physi-
cal, and temporal dimensions by spreading data across
autonomous storage service providers (SSPs). However,
current storage interfaces provided by SSPs are not de-
signed for high end-to-end durability. In this paper,
we propose a new storage system architecture that (1)
spreads data efficiently across autonomous SSPs using
informed hierarchical erasure coding that, for a given
replication cost, provides several additional 9's of dura-
bility over what can be achieved with existing black-box

  

Source: Alvisi, Lorenzo - Department of Computer Sciences, University of Texas at Austin

 

Collections: Computer Technologies and Information Sciences