Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2010-08-27
2011-10-25
Bradley, Matthew (Department: 2187)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
C711S154000, C710S015000, C714S047300
Reexamination Certificate
active
08046554
ABSTRACT:
The storage system includes a storage subsystem including a plurality of storage units and a storage control device coupled to a computer and the storage subsystem, the storage control device providing the host computer with a logical unit assigned to a storage unit of the storage subsystem. The storage control device receives a first access request from the computer to the logical unit and sends a second access request to the storage unit of the storage subsystem according to a relation between the storage unit of the storage subsystem and the logical unit assigned to the storage unit. Performance information relating to the second access request by the storage control device is obtained so that the storage control device determines performance relating to the logical unit assigned to the storage unit of the storage subsystem.
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Eguchi Yoshiaki
Satoyama Ai
Shimada Akinobu
Yamamoto Yasutomo
Bradley Matthew
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