Configuring HP-UX For Peripherals

Chapter 2 41
Managing PCI Cards with OLAR
PCI Card OLAR Overview and Concepts
encounters errors are encountered, it will attempt to resume operations
at the point where it started.
Post OLAR (Post Operations) Scripts
Post-OLAR scripts are run by SAM just after a PCI card is added or
replaced, and initialized. These scripts contain the necessary
instructions to bring the replaced card into service before activity to and
from the device is actually started or re-started. For example, a post_add
script might create special device files for the new card and any attached
devices.
IMPORTANT ADVANCED CONSIDERATIONS
This section presents other situations that you are likely to encounter
when performing OLAR operations, and how to handle them accordingly:
• Power Domains
• Multi-port Cards
• Virtual Ports
• Patch Information
Power Domains
A power domain is a grouping of 1 or more interface card slots that are
powered on or off as a unit. As of this release, there are no systems that
support more than 1 interface card slot in a single power domain. For
future releases where multiple cards per power domain are supported,
SAM and rad will account for them.
SAM will not allow an OLAR action to take place for a card if any
member of its power domain is a critical resource.
Multi-port Cards
Some PCI cards may provide more than one function. These multi-port
cards have separate hardware paths for each port, as well as separate
drivers bound at each hardware path.
Both SAM and rad will account for multi-port cards, and will either
suspend or resume all ports associated with a slot. SAM will account for
all ports during critical resource analysis and will run scripts for all
ports when necessary.