Disk controller with logically partitioning function

Details Disk controller with logically partitioning function Disk controller with logically partitioning function

2008-03-25

2008-03-25

Portka, Gary (Department: 2185)

Electrical computers and digital processing systems: memory

Storage accessing and control

Memory configuring

C711S114000, C711S129000, C714S005110

Reexamination Certificate

active

10986895

ABSTRACT:
To provide a storage system partitioned into logical partitions. A storage system includes: a plurality of disk drives; and a disk controller that is connected to the disk drives and reads/writes data from/into the disk drives, wherein the disk controller includes: a disk control unit that exchanges data with the disk drives; a channel control unit that exchanges data with another computer; a switch unit that is connected to the disk control unit and the channel control unit and exchanges data therewith; and a control unit that controls the disk control unit, the channel control unit, and the switch unit, and wherein the disk controller is partitioned into a plurality of logical partitions, the control unit controls the partitioning into the logical partitions, and the switch unit controls a data transmission band width of each logical partition by obtaining, for each piece of data to be exchanged, information indicating a logical partition to which the data belongs, and arbitrating data transmission for the logical partition.

REFERENCES:
patent: 5414697 (1995-05-01), Osaki
patent: 5910953 (1999-06-01), Inata
patent: 6282197 (2001-08-01), Takahashi et al.
patent: 6636481 (2003-10-01), Yamaguchi et al.
patent: 7062605 (2006-06-01), Chatterjee et al.
patent: 2002/0095551 (2002-07-01), Fujimoto et al.
patent: 2002/0103969 (2002-08-01), Koizumi et al.
patent: 2002-182859 (2002-06-01), None

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