D-Link DSN-4200 Hardware Reference Guide for DSN-4000 - Page 13

Table 2-1. Enclosure LEDs LED Power Global Enclosure Status Controller Activity System Heartbeat Description Green: Indicates that the primary array is powered on. Green: Indicates that the primary array is powered on and functioning. Red: Indicates that a fault condition exists and requires user attention Flashing Green: Indicates that there is system activity Flashing Green: While the system is operating normally, this LED blinks seven (7) times, then turns off for approximately 4 seconds, then repeats with a total cycle time of 8 seconds Figure 2-3. Detailed View of the Drive Carrier Table 2-2. Drive Carrier Status LEDs LED Disk Status Power/Activity Description Off: No hard disk is present. Green: The hard disk is powered on and available. Red: The hard disk has failed and should be replaced. Off: The disk is idle or no disk is present. Flashing Green: A hard disk is present and there is disk activity. Figure 2-4. Drive Slot Numbers on the DSN-4X00 Primary Array DSN-4000 Series Hardware Reference Guide 5