Peripheral controller comprising first messaging unit for commun

Details Peripheral controller comprising first messaging unit for commun Peripheral controller comprising first messaging unit for commun

1998-06-15

2000-11-28

Lee, Thomas C.

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral configuration

710 8, 710 10, 710 62, 710 64, G06F 300, G06F 1312, G06F 1338

Patent

active

061547891

ABSTRACT:
An embodiment of the present invention provides a peripheral controller for coupling a mass storage peripheral to a computer system. In a disclosed embodiment the peripheral controller is a disk array controller programmed for RAID. The peripheral controller includes a first messaging unit (FMU), a second messaging unit (SMU), and a peripheral interface which are connected by a local bus. The FMU responds to messages from a first operating system driver. The SMU responds to messages from a different second operating system driver. In one embodiment, the FMU responds to commands from the first operating system driver which is non-standard. In another embodiment, the SMU responds to commands from the second operating system driver which is compatible with the I2O standard. In the disclosed embodiment, the peripheral interface controls mass storage peripherals in response to messages sent to the FMU or the SMU.

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