Installation Guide, Fifth Edition - HP 9000 rp8420 Server

Chapter 2

Installation

Cabling and Power Up

IMPORTANT The minimum supported N+1 BPS configuration for one cell board must have BPS slots 0, 1,

and 3 populated. When selecting a single power source, the power cords are connected into A0

and A1.

NOTE Label the AC power cords during the installation. One suggestion is to use tie wraps that have

the flag molded into the tie wrap. The flag can be labeled using the appropriate two characters

to represent the particular AC power input (for example, A0). Another suggestion would be to

use color-coded plastic bands. Use one color to represent the first pair A0/A1 and another color

to represent the second pair B0/B1 (provided a second power source is available at the customer

site).

Applying Power to the HP 9000 rp8420 server

Observe the functionality of the server before attaching any LAN or serial cables, the system console, or any

peripherals to the server. Then, after applying an active AC power source to the server, make the following

observations at three different intervals, or points in time.

INTERVAL ONE

The power has just been applied to the server but the front panel On/Off switch is Off. The front air intake

fans will flash a dim red color, the BPS will flash amber and an amber light is present on the hard disk drives.

INTERVAL TWO

After the power has been plugged into the server for about 30 seconds, the standby power turns on and the

front intake fan LED indicators turn solid green. The BPS will flash green and the amber light is still present

on the hard disk drives. The front panel On/Off switch is Off at this interval. Housekeeping power is up at

this point.

INTERVAL THREE

With the On/Off switch on the front of the server set to On, the intake fans spin up and become noticeably

audible while the LED indicator remains solid green. The BPS LED indicator turns a solid green and the PCI

backplane power supply LED indicators turn solid green. The hard disk drive LED turns green briefly and

then the LED turns off.

Table 2-4 BPS to Cell Board Configuration to Achieve N+1

Number of Cell

Boards Installed in

the Server

Number of Operational BPS

Installed to Achieve N+1

Functionality