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公开(公告)号:GB2342731A
公开(公告)日:2000-04-19
申请号:GB9822219
申请日:1998-10-12
Applicant: IBM
Inventor: FOWLER ROBERT VICTOR , JONES ROBERT MICHAEL , KEY ANDREW
Abstract: In a data processing system having connected devices, device drivers and device adapters, a device adapter is elected to be the controlling adapter. Requests to a device or devices are transparently routed via the controlling adapter. If a controlling adapter fails, the or one of the remaining device adapters is elected to be the replacement controlling adapter. Requests can continue to be serviced via the replacement controlling adapter, and requests that were in progress at the time of the failure can be reissued for service via the replacement controlling adapter.