Dc Power-Supply Leds; Front Leds; Ds3512 Storage Subsystem And Exp3512 - IBM DS3500 Installation, User's, And Maintenance Manual

DC power-supply LEDs

This section describes the primary LEDs on the DS3500 dc power supplies.
Standby power LED (green)
DC power out LED (green)
OK to remove LED (blue)
Fault LED (amber)
DC power in LED (green)
Figure 4-4. DC power-supply LEDs
Standby power LED (green)
Future use only.
DC Out LED (green)
When this green LED is lit, it indicates that the DS3500 is turned on and is supplying both 5-volt
and 12-volt dc power.
OK to remove LED (blue)
When this blue LED is lit, it indicates that it is safe to remove the power supply.
Fault LED (amber)
When this amber LED is lit, it indicates that a power supply or fan has failed or that a redundant
power supply is not turned on.
DC In LED (green)
When this green LED is lit, it indicates that the storage subsystem is receiving dc power.

Front LEDs

This section describes the primary LEDs and controls on the front of the storage subsystem.
The front LEDs and controls on the DS3512 storage subsystem and EXP3512 storage enclosure are shown
in Figure 4-5. The front LEDs and controls on the front of the DS3524 storage subsystem and EXP3524
storage enclosure are shown in Figure 4-6 on page 4-9.
Power-on LED
System locator LED
Overtemperature LED
System error LED
Standby power LED
Figure 4-5. DS3512 storage subsystem and EXP3512 storage enclosure front LEDs and controls
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System Storage DS3500 and EXP3500: Installation, User's, and Maintenance Guide
Hard disk drive activity LED
Hard disk drive status LED