HP Smart Array 6400 Series Controllers Support Guide, September 2007

Table 1-2 HP A9890A Smart Array 6402 Series Controller Components (continued)
DescriptionItem ID
Battery-backed cache module6
Connector for expansion board7
Controller Board Runtime LEDs
The Smart Array 6402 Controller board has nine runtime LEDs that indicate various activities
and error conditions. Figure 1-2 illustrates their location, and Table 1-3 describes how to interpret
them.
Figure 1-2 Smart Array 6402 Controller Board Runtime LEDs
Table 1-3 Interpretation of Runtime LEDs
LED Name and InterpretationNameColorLED ID
Diagnostic/Cache Status LED. LED flickers during cache activity. LED is
constantly on indicates a cache error.
CR100Amber0
Drive Failure LED. A physical drive connected to the controller has failed.CR101Amber1
SCSI Bus Active LED. At least one of the SCSI busses on the controller is
active.
CR102Blue2
XOR Active LED. The controller is calculating parity data.CR103Green3
Command Outstanding LED. The controller is working on a command.CR104Green4
Heartbeat LED. This LED flashes every two seconds unless the controller
is malfunctioning.
CR105Blue5
High Activity LED. This LED illuminates when the controller is busy.CR106Green6
Idle Task LED. Under normal circumstances, this LED flashes once per
second. When the controller is busy, the LED is constantly illuminated.
CR107Green7
Status Charging LED. The controller battery is being charged.CR11Amber8
NOTE: During server power on, each runtime LED illuminates randomly until POST completes.
Board Components and Features 17