Electrical computers and digital processing systems: multicomput – Computer network managing
Reexamination Certificate
2011-03-08
2011-03-08
Hamza, Faruk (Department: 2455)
Electrical computers and digital processing systems: multicomput
Computer network managing
C709S203000, C709S224000, C709S238000
Reexamination Certificate
active
07904539
ABSTRACT:
Inquiry data received from sequential target devices is stored in a cache memory. In one embodiment, the cache memory is coupled to a router. In one embodiment, when the router receives from a host an inquiry command about a target, the router first checks to see if the inquiry command can be serviced from the cache. If so, the inquiry data about the target is retrieved from the cache and returned to the host. If not, the router checks to see if the target is busy. If not busy, the router routes the inquiry command to the target and stores the inquiry data returned by the target in the cache. If the target is busy, the router places the inquiry command in a queue. When the target becomes available, the router forwards the inquiry command to the target for processing, thereby keeping the inquiry command from timing out.
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Culp Bradfred W.
Dale Stephen G.
Crossroads Systems Inc.
Hamza Faruk
Hewlett--Packard Company
Sprinkle IP Law Group
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