User's Guide

Chapter

PCI Error Handling Product Note

Known Problems

• olrad manpage — after installing the PCI Error Handling feature, enter man olrad from the command

line to view the olrad manpage that includes PCI Error Handling information.

• Interface Card OL* Support Guide, September 2004, Manufacturing Part Number B2355-90862 —

available at: http://docs.hp.com

• Patch Management User Guide for HP-UX 11.x Systems, February 2007, Manufacturing Part Number

5991-6449 — available at: http://docs.hp.com

Known Problems

IMPORTANT If you use Serviceguard, HP 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, Serviceguard may not

detect when connectivity is lost and cause a failover.

NOTE With the PCI Error Handling solution installed, there is still a remote possibility that an MCA

or HPMC could occur during a PCI OLA operation (online addition of an I/O card). At the

beginning of a PCI OLA operation, there is a brief time during which the PCI Error Handling

infrastructure determines if the driver associated with the card is PCI Error Handling capable.

Any PCI error that occurs during this brief window of exposure can cause an MCA or HPMC.

This exposure only exists during PCI OLA operations. This exposure does not exist during PCI

OLR operations (online replacement of an I/O card), or during ordinary I/O card operations.

Removing the PCI Error Handling Feature

To remove the PCI OL* Error Handling feature use the swremove command:

# swremove -x autoreboot=true PCIErrorHandling

This will remove the PCI Error Handling feature and reboot your system, leaving the bundle wrapper and

kernel patches on your system. The kernel patches that were included with the product bundle are

recommended for your system. Therefore, we advise that you do not remove them.

For more information on managing patches on your system, see the Patch Management User Guide for HP-UX

11.x Systems, February 2007, Manufacturing Part Number 5991-6449. This document is available on the

Support Plus media and on the Hewlett-Packard documentation web site:

http://www.docs.hp.com

Use the swlist command to verify PCI Errror Handling has been removed from your system. The swlist

command will not display PCIErrorHandling if it has been removed from your system.