Patent ID: 9697166
Date: 2017-07-04
CPC Classifications: G06F

Claim:
1. A computer system for implementing health check for optical cable attached Peripheral Component Interconnect Express (PCIE) enclosures, comprising: a processor; a PCI host bridge (PHB); said PHB connected to said processor and one or more optical cables connecting between the PHB and an PCIE enclosure providing a PCIE link to the PCIE enclosure; and system firmware for implementing health check functions; said processor using said system firmware for performing the steps of: resetting a PCIE link to the PCIE enclosure responsive to identifying a predefined event; responsive to resetting the PCIE link, providing a set delay and performing a link health check for verifying PCIE link width and speed, said health check includes performing PCIE link recovery, correcting any correctable errors, repairing the PCIE link and resetting the PCIE link connection, checking for an operable the PCIE link, responsive to the PCIE link being operable, restarting the health check after the set delay; and responsive to the PCIE link not being operable, generating error code to provide single failure to a customer.