公开(公告)号：US20110167293A1

公开(公告)日：2011-07-07

申请号：US13050372

申请日：2011-03-17

申请人： RAFAEL G. CABEZAS ,  DAVID D. GALVIN ,  BINH K. HUA ,  SIVARAMA K. KODUKULA

发明人： RAFAEL G. CABEZAS ,  DAVID D. GALVIN ,  BINH K. HUA ,  SIVARAMA K. KODUKULA

IPC分类号： G06F11/20

CPC分类号： G06F11/2221 ,  G06F11/004 ,  G06F11/2017

摘要： A primary I/O adapter and a redundant I/O adapter of a data processing system are assigned to support access to a system resource. While the primary I/O adapter is in service and the redundant I/O adapter is not in service in providing access to the system resource, a fail over command is issued to remove the primary I/O adapter from service and place the redundant I/O adapter in service in supporting access to the system resource. While the redundant I/O adapter is in service and the primary I/O adapter is not in service in providing access to the system resource, diagnostic testing on the primary I/O adapter is performed. In response to the diagnostic testing revealing no fault in the primary I/O adapter, a fail back command is issued to restore the primary I/O adapter to service and to remove the redundant I/O adapter from service.

摘要翻译： 分配数据处理系统的主I / O适配器和冗余I / O适配器以支持对系统资源的访问。 当初级I / O适配器处于使用状态并且冗余I / O适配器未提供对系统资源的访问时，将发出故障转移命令以从服务中删除主I / O适配器，并将冗余I / / O适配器在服务中支持对系统资源的访问。 当冗余I / O适配器处于使用状态并且主I / O适配器未提供对系统资源的访问时，将执行主I / O适配器的诊断测试。 响应诊断测试显示主I / O适配器无故障，将发出故障恢复命令以恢复主要I / O适配器的服务，并从服务中删除冗余I / O适配器。