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FAST 2002 Abstract
GPFS: A Shared-Disk File System for Large Computing Clusters
Frank Schmuck and Roger Haskin
IBM Almaden Research Center
Abstract
GPFS is IBM's parallel, shared-disk file system for cluster computers, available on the RS/6000 SP parallel
supercomputer and on Linux clusters. GPFS is used on many of the largest supercomputers in the world. GPFS was
built on many of the ideas that were developed in the academic community over the last several years, particularly
distributed locking and recovery technology. To date it has been a matter of conjecture how well these ideas scale.
We have had the opportunity to test those limits in the context of a product that runs on the largest systems in
existence. While in many cases existing ideas scaled well, new approaches were necessary in many key areas. This
paper describes GPFS, and discusses how distributed locking and recovery techniques were extended to scale to
large clusters.
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