Methods and apparatus for assigning performance to data...

Details Methods and apparatus for assigning performance to data... Methods and apparatus for assigning performance to data...

2011-07-12

2011-07-12

Kim, Charles (Department: 2157)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output access regulation

C710S036000, C710S054000, C710S060000

Reexamination Certificate

active

07979604

ABSTRACT:
A computerized data storage system and a method for portioning performance among data areas on a hard disk drive. The system includes a management computer coupled to one or more host computers and a storage apparatus. The storage apparatus includes hard disk drives and a storage controller for partitioning the hard disk drives among data volumes in the storage apparatus and for assigning the data volumes to the host computer. A performance partitioning module utilizes a queue management table for forming a number of queues on memory of the hard disk drive. The queues receive READ and WRITE requests and convey these requests to data areas assigned on recording media of the hard disk drive. After a request from a queue is executed, a gate between the queue and the data areas may be closed to allow requests from other queues an opportunity to access the data areas.

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