HP BL860C - Manual (Page 94)

Table 20 SAS Disk Drive LEDs
SAS Disk Drive State Status LED Activity LED
Offline or not configured Off Off
Normal operation; no disk activity Off Solid green
Normal operation; disk read or write activity Off Flickering green
Offline, no disk activity; predictive failure Flashing amber - 1/sec Off
Online, no disk activity; predictive failure Flashing amber - 1/sec Solid green
Disk activity; predictive failure Flashing amber - 1/sec Flickering green
Offline; no disk activity; critical fault Solid amber Off
Offline; drive selected by locator function Solid blue Off
Drive rebuilding Off Flashing green - 1/sec
LAN LEDs
There are four LAN LEDs on the front panel of the server blade. They are NIC 1 through NIC 4.
Table 21 details the functions of the LAN LEDs.
Table 21 1 GB LAN States
State LED Color
No link Off
Link found Steady Green
LAN activity on network link Flashing Green
Boot Process LEDs
Table 22 shows the normal boot process, as reflected in changes to front panel LED states:
Table 22 Normal Boot Process LED States
Normal Power-Up Through HP-UX Boot Power Health Step
No AC power to the server blade. Off Off 1
Server blade is shut down (server is off), AC power and
standby power is active, last health status was healthy. Amber Off 2
Server blade power rails are on when Power switch is
toggled. Hardware drives power LED. Steady Green Off 3
Server blade has powered up and is either at EFI, booting,
or at OS. Steady green Steady green 4
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 processor 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.
94 Troubleshooting