HP-UX 11i June 2001 Release Notes

Chapter 5 109
5 I/0 and Networking Cards
Online Addition and Replacement of I/O
Adapters (new at 11i original release)
Online Addition and Replacement (or OLAR) of PCI I/O cards (adapters)
is a new HP-UX software feature that allows for adding and replacing
PCI I/O cards while a system is running, eliminating the need to reboot.
This feature enhances an overall high availability solution since the
system can remain active while an I/O adapter is being added or
replaced. When combined with other high availability products, such as
HP MC/ServiceGuard, system availability is significantly improved.
SAM provides the system administration interface for OLAR. The first
release of OLAR in HP-UX 11i provides support for the addition and
replacement of I/O cards on L-Class, N-Class, and Superdome systems.
Many future HP 9000 systems are being designed with this feature as
well.
For more information about the OLAR feature, see:
• “Changes to System Administration Manager (SAM)(updated for
June 2001)” on page 142
• Configuring HP-UX for Peripherals, part no. B2355-90698
• Managing Systems and Workgroups: A Guide for HP-UX System
Administrators, part number B2355-90742
NOTE Updated for HP-UX 11i June 2001
SAM patch PHCO_23004 for 11i (included in the HWEnable11i patch
bundle and automatically installed)changes the behavior of the PCI card
slot LED (Attention Indicator) to conform with the newly implemented
PCI SHPC (Standard Hotplug Controller) specification.
Essentially, the meanings for OLAR “FLASHING” (BLINKING) and
“ON” LED are reversed to meet the specification.
See “HP Superdome Servers: New Attention Indicator Behavior (new for
June 2001)” on page 47 in Chapter 2 for more details.