Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
2006-07-25
2006-07-25
Verbrugge, Kevin (Department: 2189)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
C369S047100
Reexamination Certificate
active
07082494
ABSTRACT:
A disk drive is disclosed for executing a preemptive multitasking operating system comprising tasks of varying priority, including a disk task for processing disk commands by initiating seek operations and configuring parameters of a read/write channel, a host task for initiating disk commands in response to host commands received from a host computer, a background task for initiating disk commands to perform background operations including a defect scan of the disk, and an execution task for arbitrating the disk commands generated by the host task and the background task and for transmitting the arbitrated disk commands to the disk task.
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Eitan Bachmat and Jiri Schindler, Analysis of methods for scheduling low priority disk drive tasks, Jun. 2002, ACM Press, ACM SIGMETRICS Performance Evaluation Review, vol. 30, Issue 1.
Lauber John Edward
Rothberg Michael S.
Severtson Eric L.
Simionescu Horia Cristian
Thelin Gregory B.
Evans, Esq. Jason T.
Ko Daniel
Sheerin, Esq. Howard H.
Verbrugge Kevin
Western Digital Technologies Inc.
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