Distributed lock management chip

A lock management apparatus comprises a PCI socket for receiving from a processor associated with the lock management apparatus an indicator of a resource to be locked. The apparatus causes a corresponding indicator to be stored in a CAM and causes a stored indicator to be deleted when an associated...

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Bibliographic Details
Main Author AEDAN DIARMUID COFFEY
Format Patent
LanguageEnglish
Published 18.09.2002
Edition7
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:A lock management apparatus comprises a PCI socket for receiving from a processor associated with the lock management apparatus an indicator of a resource to be locked. The apparatus causes a corresponding indicator to be stored in a CAM and causes a stored indicator to be deleted when an associated resource is unlocked. The apparatus receives from a FC-AL interface, a frame indicative of a lock request for a resource. If the lock request frame originates from another processor, the apparatus checks any stored indicators for a matching locked resource. If the apparatus detects a match, it transmits a frame indicative of the locked resource to the originator of the lock request; and if it does not detect a match, it transmits the lock request frame to the originator of the lock request.
Bibliography:Application Number: IES20010611