Electrical computers and digital processing systems: multicomput – Computer-to-computer direct memory accessing
Reexamination Certificate
2003-05-22
2009-11-03
Etienne, Ario (Department: 2457)
Electrical computers and digital processing systems: multicomput
Computer-to-computer direct memory accessing
C709S213000, C709S214000, C709S215000, C709S216000, C710S008000, C714S015000
Reexamination Certificate
active
07613784
ABSTRACT:
A system for sharing block data includes a non-removable device for storing block data (e.g. a hard drive) that is networked with a plurality of computers. Each computer can initiate discovery commands and read/write commands, and transmit these commands over the network to the non-removable storage device. Computer commands are intercepted and processed by a logical algorithm program at the storage device. One function of the logical algorithm program is to instruct each computer to treat the non-removable block storage device as a removable block device. Because the computers treat the storage device as a removable block device, they relinquish control of the device (after use) to other computers on the network. The logical algorithm program also functions to allocate temporary ownership of the block storage device to one of the computers on the network and passes temporary ownership from computer to computer on the network.
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Matze John E. G.
Reider Michael H.
Burgess Barbara N
Etienne Ario
Knobbe Martens Olson & Bear LLP
Overland Storage, Inc.
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