PCI Error Recovery Product Note, June 2007

PCI Error Recovery Product Note

Tunable Kernel Parameters

Chapter

ba 8 0/0/12 Supported

ba 9 0/0/14 Supported

ba 10 1/0/0 Unsupported

ba 11 1/0/1 Supported

ba 12 1/0/2 Supported

ba 13 1/0/4 Supported

ba 14 1/0/6 Supported

ba 16 1/0/8 Supported

ba 17 1/0/10 Supported

ba 18 1/0/12 Supported

ba 19 1/0/14 Supported

This implies that PCI error recovery is supported for I/O adapters located under LBAs like 0/0/1 or 0/0/2 but

not for those under 0/0/0 or 1/0/0.

Tunable Kernel Parameters

There are two PCI Error Recovery tunables that you can conﬁgure:

• pci_eh_enable

This tunable is used to enable or disable the PCI Error Recovery feature. On HP-UX 11i v3, PCI Error

Recovery is enabled by default.

pci_eh_enable is not a dynamic tunable. A reboot will be required for changes to take effect.

Refer to the pci_eh_enable(5) manpage for further details on this kernel tunable parameter.

• pci_error_tolerance_time

This tunable determines whether an automatic PCI error recovery will occur on an I/O slot based on the

time interval between two PCI errors. If two PCI errors occur on a PCI slot within the time interval

speciﬁed by the pci_error_tolerance_time tunable, the card in the I/O slot will be suspended and a

manual PCI error recovery operation is required to restore the card.

For further details on this kernel tunable parameter, see the pci_error_tolerance_time(5).