Dell PowerEdge 1500SC - Manual (Page 16)

Figure 1 -3 shows the indicators on each of the SCSI hard drive carriers that provide the following information:
l Drive online indicator — (round icon) lights when the hard drive is receiving power
l Drive activity indicator — (cylinder icon) lights when data is transferred to or from the hard drive
l Drive failure indicator — (X icon) if the system uses an optional RAID controller, either an integrated controller or a host adapter card, the indicator lights
if a drive failure is detected
Figure 1-3. Hard-Drive Indicators
Back-Panel Features
Figure 1-4 shows the back-panel features of the system.
Figure 1-4. Back-Panel Features
NOTE: The following figure shows the optional redundant AC power supplies installed.