Installation guide

Managing Hardware Devices
5-26 Fault Tolerant System Administration (R1004H) HP-UX version 11.00.03
Fault Code : -
MTBF : Infinity
MTBF Threshold : 1440 Seconds
Weight. Soft Errors : 1
Min. Number Samples : 6
Managing Hardware Devices
The system adds CRUs and FRUs to the system at boot time by scanning the
existing hardware devices and configuring the system accordingly. When the
system is running, you can use ftsmaint commands to enable or disable
hardware devices. When removing a CRU, you must replace it with another device
of the same type.
You can add a new hardware device to a running system using the addhardware
command. See the HP-UX Operating System: Peripherals Configuration (R1001H)
and the addhardware(1M) man page for more information.
A newly replaced or added CRU or FRU undergoes diagnostic self-test. If it passes
diagnostics and satisfies configuration restraints, the resources contained in that
device are made available to the system.
See the HP-UX Operating System: Continuum Series 400 and 400-CO Operation and
Maintenance Guide (R025H) for step-by-step instructions for replacing specific
CRUs.
Checking Status Lights
Most system components contain one or more lights that identify the operating
status of that component (see “Status Lights” later in this chapter). You can test
whether the status lights for the following components are operating properly:
■ suitcases
■ PCI slots
■ ACU units
■ cabinets
To verify that the status lights for a particular component are operating properly,
do the following:
1. Determine the hardware path for the component. For example, to see the
hardware paths for all components, enter
ftsmaint ls