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1999
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Device Locks: Mutual Exclusion for Storage Area Networks

10 years 5 months ago
Device Locks: Mutual Exclusion for Storage Area Networks
Device Locks are mechanisms used in distributed environments to facilitate mutual exclusion of shared resources. They can further be used to maintain coherence of data that is cached in several locations. The locks are implemented on the storage devices and accessed with the SCSI device lock command, Dlock. This paper presents the Dlock command and discusses how it can be used as a mutual exclusion device for Storage Area Networks and Shared Disk File Systems. Methods for the recovery of a Dlock held by a failed initiator are also presented. The Dlock command is in the process of being standardized as part of the SCSI 3 specification.
Kenneth W. Preslan, Steven R. Soltis, Christopher
Added 04 Aug 2010
Updated 04 Aug 2010
Type Conference
Year 1999
Where MSS
Authors Kenneth W. Preslan, Steven R. Soltis, Christopher Sabol, Matthew T. O'Keefe
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