Dell POWERVAULT MD1000 - Manual (Page 10)

10 About Your System
Drive Carrier LED Indicators
Each drive carrier in your enclosure has two LEDs: an activity LED (green) and a bi-color (green/amber)
status LED (see Figure 1-3). The activity LED flashes whenever the drive is accessed. Table 1-3 lists the
flash patterns for the status LED.
Figure 1-3. Drive Carrier LED Indicators
Power LED (green) When lit, at least one power supply is supplying power to
the enclosure.
Split mode LED (green) When lit, indicates the enclosure is in split-mode
configuration; otherwise, the enclosure is in unified mode.
For more information, see “Unified Mode and Split
Mode.”
Enclosure mode switch When set in its uppermost position at power on, the
enclosure is configured in unified mode; when set in its
lowermost position at power on, the enclosure is
configured in split mode.
NOTE: This switch must be set prior to power on. Changing
the switch setting after power on will have no effect on
enclosure configuration until the system is power cycled.
1 activity LED 2 status LED
Table 1-2. Front-Panel Components (continued)
Component Icon Condition
1 2