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PCI Error Handling

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Overview

The PCI Error Handling feature allows an HP-UX system to avoid a Machine Check Abort (MCA) or a High Priority Machine Check (HPMC), if a PCI error occurs (for example, a parity error). If a PCI error occurs on a bus without the PCI Error Handling feature installed, an MCA or an HPMC will occur, then the system will crash.

With the PCI Error Handling feature installed, if a PCI error occurs on a bus containing an I/O card that supports PCI Error Recovery:

  • The corresponding device driver reports the error

  • The PCI bus is quarantined to isolate the system from further I/O - preventing the error from damaging the system

  • The olrad command and the Attention Button can be used to online recover, restoring the slot, card, and driver to a usable state

The PCI Error Handling feature is supported on HP-UX 11i v2 with five I/O card drivers, and nine systems. Before installing the PCI Error Handling feature, consult the PCI Error Handling Product Note - Third Edition, March 2007, Manufacturing Part Number 5992-0539. The PCI Error Handling Product Note details the error handling procedure and includes a PCI Error Handling Support Matrix so you can determine if your configuration will support this feature. Click on �Additional Information� below, to access the PCI Error Handling Product Note.

IMPORTANT:
If you use Serviceguard, HPE recommends the PCI Error Handling feature only be enabled if your storage devices are configured with multiple paths and are protected by high availability storage software such as PVLink, SecurePath, or MirrorDisk/UX. If PCI Error Handling is enabled, but your storage devices are configured with only a single path, a system reboot may be necessary to recover from a PCI parity error.

 
Additional product information
Product #: PCIErrorHandling     
Additional info
Version: B.11.23.03
Software specification: HP-UX 11i v2 B.11.23.03
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