公开(公告)号：US20060107112A1

公开(公告)日：2006-05-18

申请号：US10973077

申请日：2004-10-25

申请人： Scott Michaelis ,  Anurupa Rajkumari

发明人： Scott Michaelis ,  Anurupa Rajkumari

IPC分类号： G06F11/00

CPC分类号： G06F11/2043 ,  G06F11/1641 ,  G06F11/1654 ,  G06F11/2025 ,  G06F11/2028 ,  G06F11/2038

摘要： A system comprises a plurality of processors, and data storage storing information that assigns a role of boot processor to one of the plurality of processors and assigns a role of spare processor to another of the plurality of processors. The system further comprises logic operable, responsive to detecting loss of lockstep for the boot processor, for transferring, during system runtime, the role of boot processor to the spare processor.

公开(公告)号：US20060090064A1

公开(公告)日：2006-04-27

申请号：US10972588

申请日：2004-10-25

申请人： Scott Michaelis ,  Anurupa Rajkumari ,  William McHardy

发明人： Scott Michaelis ,  Anurupa Rajkumari ,  William McHardy

IPC分类号： G06F9/00

CPC分类号： G06F11/2043 ,  G06F11/1641 ,  G06F11/1658 ,  G06F11/2028 ,  G06F11/2035 ,  G06F11/2038

摘要： According to one embodiment, a method comprises detecting loss of lockstep (LOL) for a processor in a multi-processor system. The method further comprises determining that the processor for which the LOL is detected is assigned the role of boot processor, and switching the role of boot processor to a spare processor without shutting down the system's operating system. In another embodiment, a method comprises system firmware determining that an LOL is detected for a lockstep pair of processors that are assigned the role of boot processor in a system. The method further comprises determining one of the lockstep pair of processors that is not the cause of the LOL, and copying the state of the determined one of the lockstep pair of processors that is not the cause of the LOL to a spare processor. The method further comprises switching the role of boot processor to the spare processor.