Dell PowerVault 770N (Deskside NAS Appliance) - Manual (Page 15)

Table 3-5. Power-Supply Indicator Codes
Indicator Indicator Code
Power-on Green indicates that the power supply is operational.
Fault Red indicates a problem with the power supply (fan failure, voltage error, etc.).
Power
present
Green indicates that power is present at the power supply and that the system is connected to a power
source.
Hard-Drive Indicator Codes
Each hard-drive carrier has two indicators: a busy indicator and a status indicator (see Figure 3-5 ). The indicators provide
information on the status of the respective hard drive. Table 3-6 lists the drive indicator codes.
Figure 3-5. Hard-Drive Indicators