GreenStor: Application-Aided Energy-Efficient Storage

The volume of online data content has shown an un­ precedented growth in recent years. Fueling this growth are new federal regulations which warrant longer data re­ tention and a general increase in the richness ofdata con­ tent. To cope with this growth, high performance comput­ ing and enterprise environments are making use of large disk-based solutions that consume power all the time, un­ like tape-based solutions. As a consequence, the energy consumption of the storage solutions has grown signifi­ cantly. In this work we propose a storage solution called GreenStor, which makes use of application hinting on top of Massive Arrays of Idle Disks (MAID) to improve en­ ergy efficiency. GreenStor is centered on MAID, but with more efficient data movement to aid in energy conserva­ tion. Specifically, we propose an Extent-based Metadata Manager that achieves better space efficiency without sac­ rificing cache utilization and an Opportunistic Scheduling scheme that helps provide b...

• Type: Conference
• Year: 2007
• Where: MSS
• Authors: NagaPramod Mandagere, Jim Diehl, David Hung-Chang Du
• Keywords: Application Hints, Internet Technology, Maid Systems, MSS 2007, Storage Solutions