Digital data storage system
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专利名称：Digital data storage system
发明人：Bunten III, Roland Jay,Hickman, John Edward 申请号：EP81110076.7
申请日：19811202
公开号：EP0057275B1
公开日：
19871111
专利内容由知识产权出版社提供
摘要：A digital data storage system having a switching arrangement permitting storage devices to be shared by two separate controllers, each of which in turn receives commands and transfers the stored data to a different data processing system. The arrangement involves a plurality of subchannels (01, 1, 2, 3) each of which comprises at least one addressable storage device (0;....N) and two addressable interlocked port switches (0, 0') each of which functions to connect one side of the subchannel and the device to one of the controllers (10, 10'). The subchannel switching arrangement is characterised by each switch being addressable as if it were another device, which permits the port switches to be implemented with minimal changes to either the controller or the device.
申请人：International Business Machines Corporation
地址：Old Orchard Road Armonk, N.Y. 10504 US
国籍：US
代理机构：Grant, Iain Murray
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