HP PCI Error Handling and Recovery Livre blanc Page 1

Table of contentsExecutive Summary ...

10RC (Root Complex) An entity that includes a host bridge and one or more root ports.RP (Root Port) A PCI Express port on a root complex that maps a p

For more informationwww.hp.com/go/hpux11i© Copyright 2008-2010 Hewlett-Packard Development Company, L.P. Theinformation contained herein is subject to

2Executive SummaryIn the context of software applications, Reliability, Availability, and Serviceability (RAS) mean failures inthe underlying processe

3Figure 1: Without PCI ErrorRecoveryI/O Card 1Status: AvailableI/O Card 2Status: AvailableI/O Card 3Status: Available and hasencountered PCI error.HP-

4Figure 2: With PCI Error RecoveryI/O Card 1Status: AvailableI/O Card 2Status: AvailableI/O Card 3Status: Available and hasencountered PCI error.HP-UX

5PCI ER decreases the frequency of crashes, service calls, & repair rates for PCI errors by a factor of 20 to25 times. Without PCI error recovery,

6Automatic errorrecoveryOn an HP-UX 11i v3 system, PCI errors are recoveredautomatically.If automatic recovery fails, users can attempt to manuallyrec

7How PCI / PCI-Express Error Recovery WorksWhen an I/O driver detects PCI bus parity errors, it reports the errors to Error Recovery Infrastructureand

8and suspend the I/O modules in the error path. When this phase is completed, it is assumed thatdrivers have suspended all activities for the devices

9Support of PCI/PCI-Express Error Handling and ErrorRecovery on HP-UXPCI error handling and error recovery are supported only with some HP-UX version,