APC SGI 15000 RAID User Manual

Page 21

Introduction

007-5510-002

There are two

AC Fail

LEDs. Each LED is connected to its power supply independent of the other

supply. The LEDs are green to indicate that the AC input to the supply is present. The LEDs turn red
if the AC input to the supply is not present. If this occurs, check the LEDs on the front side of the unit.
If you lose AC power from one supply cord, the LED for that supply outlet will turn red.

Figure 1–5 shows the following status LEDs: System, Controller, Disk, Temperature, DC, and Fan.

Figure 1–5

LED Status Indicators - Rear Panel of the Controller

The

SYSTEM STATUS

LED is solid green when the entire storage system is operating normally.

The

CTRL (CONTROLLER) STATUS

LED is green when the controller is operating normally

and turns red when the controller unit is failed.

The

DISK STATUS

LED is green when a disk enclosure is operating normally and turns amber when

there is a problem.

The

TEMP STATUS

LED is green when the temperature sensors (6 total) indicate that the system is

operating normally, amber when one (1) temp sensor indicates an over-temperature condition, and red
when two (2) or more sensors indicate an over-temperature condition.

The

DC STATUS

LED is green when indicating normal operating status. It turns amber if there is a

non-critical power Supply DC fault (that is, a power supply is not installed or is not indicating “Power
Good”). It turns red if an on-board supply fails or if there is a critical supply fault. If this occurs, check
the LEDs on the front side of the unit.

The

FAN STATUS

LED is solid green when fans are operating normally. A flashing green LED

indicates system monitoring activity such that the monitoring is being updated. The LED flashes amber
if one of the fans in the module fails. If 2 or more fans fail, the LED flashes a solid red and the system
will begin the shut down process at 5 seconds, for a total of 30 seconds to complete shutdown.

CTRL

FAN

SYSTEM

TEMP

STATUS

DISK