User Service Guide, Second Edition - HP Integrity BL60p Server Blade

Troubleshooting

Boot Process LEDs

Chapter 5

LAN LEDs

There are four LAN LEDs on the front panel of the server blade. They are NIC 1 through NIC 4. Table 5-14

details the functions of the LAN LEDs.

Boot Process LEDs

Table 5-15 shows the normal boot process, as reflected in changes to front panel LED states:

The following list itemizes the steps that characterize basic platform boot flow:

1. Server blade power switch requests power from the Management Module (the microcontroller that

manages the enclosure power and cooling). Once the power is request is granted, server blade power turns

on. After the power sequence has completed successfully, BMC releases system reset.

2. Initial CPU firmware code fetch is Platform Abstraction Layer (PAL) code from FEPROM in

processor-dependent hardware (PDH), retrieved 4 bytes at a time by the data multiplexer/demultiplexer

controller (DMDC) in Zx1. No shared memory or I/O devices are available at this time. They are not

initially configured.

3. Firmware code stack is initially in battery-backed RAM (BBRAM) in PDH, retrieved 4 byes at a time,

through the PDH and DMD buses.

4. PAL code configures all CPUs.

Table 5-14 1GB LAN States

LED Color State

Off No link

Steady Green Link found

Flashing Green LAN activity on network link

Table 5-15 Normal Boot Process LED States

Step Health Power

Normal Power-Up

Through HP-UX Boot

1 Off Off No AC power to the server blade.

2 Off Amber Server blade is shut down

(server is off), AC power and

standby power is active, last

health status was healthy.

3Off Steady

Green

Server blade power rails are on

when Power switch is toggled.

Hardware drives power LED.

4Steady

green

Steady

green

Server blade has powered up and

is either at EFI, booting, or at

OS.