HP A6828A and A6829A PCI Dual Channel Ultra160 SCSI Host Bus Adapters Installation Guide

Installing the A6828A or A6829A Adapter

Installing the Adapter

Chapter 28

HP recommends that you use SAM instead of the rad command to

perform OLAR procedures. This is because for the most part, SAM

prevents you from performing OLAR procedures that would adversely

affect other areas of the system. This is not true when you use the rad

command.

For detailed information on using either of these two procedures, see

Conﬁguring HP-UX For Peripherals. You can order that document from

Hewlett-Packard, or you can view, download, and print it from

http://www.docs.hp.com.

Table 2-1 below explains some important OLAR-related terms.

IMPORTANT In many cases, other interface adapters and slots within the system are

dependent on the target adapter. For example, if the target adapter is a

multiple-channel adapter, suspending or deleting drivers for the target

adapter slot also suspends individual drivers for the multiple hardware

paths on that adapter.

Table 2-1 Important OLAR Terms

Term Meaning

OLAR All aspects of the OLAR feature,

including Online Addition (OLA)

and Online Replacement (OLR).

Power Domain A grouping of one or more

interface adapter slots that are

powered on or off as a unit.

(Note: Currently, multi-slot

power domains are not

supported.)

target adapter / target adapter

slot

The interface adapter that will be

added or replaced using OLAR

and the adapter slot it is in.

affected adapter / affected

adapter slot

Interface adapters and the

adapter slots they are in, and

which are in the same power

domain as the target slot.