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OPEN ARCHITECTURE INTERFACE STORAGE CONTROLLER
OPEN ARCHITECTURE INTERFACE STORAGE CONTROLLER
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机译:开放式建筑界面存储控制器
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摘要
A storage controller (14) emulates specialized host storage device specific storage controller. The controller (14) transfers information between different target units (16) and host channels (13). The system (10) includes a computer (15) including first (18) and second (20) interface, and a programmable storage controller (14). The first interface (18) receives channel adapters carrying channel programs (13) transmitted from the host channels (12). The second interface (20) allows input and output to storage facilities (16) which comprise target units. The controller (14) including a device coupled to the adapters for translating channel program commands, and determining, from the program, a target unit (16) for which a channel program is transmitted. Equipment controllers interpret channel program commands and status information, and control data transfers to and from the storage facilities (16) in accordance with command. A device also establishes a unit thread by choosing an equipment controller as a function of the equipment that the channel (13) requests as a target.
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