HP-UX 11i March 2002 Release Notes

Chapter 5
107
5 I/0 and Networking Cards
Online Addition and Replacement of I/O Adapters
new at 11i
original release
Online Addition and Replacement (OLAR) is a new HP-UX software feature that allows
for adding and replacing PCI I/O cards (adapters) while a system is running, eliminating
the need to reboot.
This feature enhances overall high-availability 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.
Systems Administration Manager (SAM) provides the system administration interface
for OLAR. The first release of OLAR in HP-UX 11i provides support for 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)” on page 133
• Configuring HP-UX for Peripherals, part no. B2355-90698
• HP System Partitions Guide, part no. B2355-90746
• Managing Systems and Workgroups: A Guide for HP-UX System Administrators,
part no. B2355-90742
updated
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.
NOTE In contrast to their former behavior, PCI slot attention indicators now meet the PCI
Hotplug specification by blinking during tasks involving PCI cards or card slots.
See “New Attention Indicator Behavior” on page 40 in Chapter 2 for more details.