- 专利标题： Implementing cable failover in multiple cable PCI express IO interconnections
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申请号： US15063869申请日： 2016-03-08
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公开(公告)号： US09864662B2公开(公告)日： 2018-01-09
- 发明人: Jesse P. Arroyo , Christopher J. Engel , Kaveh Naderi , James E. Smith
- 申请人： International Business Machines Corporation
- 申请人地址： US NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： US NY Armonk
- 代理商 Joan Pennington
- 主分类号： G06F11/00
- IPC分类号： G06F11/00 ; G06F11/16 ; G06F13/42 ; G06F13/40 ; G06F11/20
摘要：
A method, system and computer program product are provided for implementing cable failover in multiple cable Peripheral Component Interconnect Express (PCIE) IO interconnections to an external IO enclosure. System firmware is provided for implementing health check functions for the PCIE IO interconnections to identify a faulted low byte cable. A cable failover mechanism recovers a PCI link to the external IO enclosure. A multiplexer logic is provided between the PCIE host bridge (PHB) and the cable connected to the IO enclosure to perform a full lane reversal of the PCIE lanes.
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