Server, and method of recovery from link failure in server

Details Server, and method of recovery from link failure in server Server, and method of recovery from link failure in server

2011-03-22

2011-03-22

Spittle, Matthew D (Department: 2111)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus expansion or extension

C710S015000, C710S104000, C710S302000, C710S305000, C713S324000, C714S043000, C714S056000

Reexamination Certificate

active

07913019

ABSTRACT:
In a server composed of a server module having a processor in it, an I/O module having an I/O extension slot for accommodating an I/O extension adapter to expand the server's I/O capability, and a management module managing the entire server, the server module and the I/O extension slot (and through it, ultimately the I/O extension adapter) are interconnected using a PCI Express interface and the I/O module and the management module are interconnected using a special interface carrying detection information indicating whether an I/O extension adapter is actually mounted on the I/O extension slot. In the event of a link failure on the PCI Express interface, link recovery is attempted by grasping the status of the link based on the detection information obtained through the special interface.

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