Integrating parallel file systems with object-based storage devices
Ananth Devulapalli, Dennis Dalessandro, Pete Wyckoff, Nawab Ali, Ponnuswamy Sadayappan · 2007
As storage systems evolve, the block-based design of today's disks is becoming inadequate. As an alternative, object-based storage devices (OSDs) offer a view where the disk manages data layout and keeps track of various attributes about data objects. By moving functionality that is traditionally the responsibility of the host OS to the disk, it is possible to improve overall performance and simplify management of a storage system. The capabilities of OSDs will also permit performance improvements in parallel file systems, such as further decoupling metadata operations and thus reducing metadata server bottlenecks.