IBM TotalStorage DS300 Best Practices Manual page 65

Rear view
The following sections detail the LEDs, controls and connectors for the power
supply and controller at the rear of the storage subsystem.
Power supply
Figure 3-13 shows the LEDs, controls and connectors on the power supply.
Figure 3-13 DS400 power supply LEDs, controls and connectors
AC power connector - Connect the power cord to this connector.
AC power on/off switch - Use this switch to turn the power supply on and off.
Power OK LED (green) - When this LED is lit, it indicates that the power
supply is turned on.
Fault LED (amber) - When this LED is lit, there is a fault with either the power
supply or a fan.
Table 3-8 Power supply LEDs
Power supply problem Indicator
Green Power Supply Power LED is off.
Action
Verify that the power cord is plugged in and that the
storage subsystem power is on.
Chapter 3. Components overview
47