10-4 Dell PowerEdge 4200 Systems Installation and Troubleshooting GuideSCSI Hard-Disk Drive Indicator PatternsThe three light-emitting diode (LED) indicators adjacent toeach of the six SCSI hard-disk drive bays provide informa-tion on the status of the SCSI hard-disk drives. The SCSIbackplane firmware controls the drive online and drivefailure indicators, whereas the drive activity indicators areusually controlled by the drives themselves.See the “SCSI Hard-Disk Drive Indicator Codes” sectionin Chapter 3 and see Table 3-3 for more information.Removing a SCSI Hard-Disk Drive With theSystem RunningRemove a SCSI hard-disk drive with the system runningas follows:1. Wait until the drive status indicators adjacentto the drive bay signal that the drive may beremoved safely.If the drive has been online, the three drive statusindicators will flash sequentially as the drive is pow-ered down. When all three indicators are turned off,the drive is ready for removal.2. Remove the hard-disk drive.Follow the instructions in “Removing a SCSI Hard-Disk Drive” found earlier in this chapter.Inserting a SCSI Hard-Disk Drive With theSystem RunningInsert a SCSI hard-disk drive with the system running asfollows:1. Remove the drive or empty carrier from the drivebay as described in the previous subsection.2. Insert the new drive carrier into the bay.Follow the instructions in “Installing a SCSI Hard-Disk Drive” found earlier in this chapter.The drive online indicator turns on.Installing a PowerEdge ExpandableRAID Controller Host Adapter CardUse the following procedure to install the PowerEdgeExpandable RAID Controller host adapter card.1. Unpack the PowerEdge Expandable RAID Con-troller host adapter card, and prepare it forinstallation.Refer to the documentation accompanying the hostadapter card.2. Remove the computer covers.See “Removing the Computer Covers” in Chapter 7.3. Remove the Ultra/Wide SCSI cable from thecomputer.Detach one end of the cable from the SCSI hostadapter connector labeled “BACKPLANE SCSI1”on the system board.Detach the other end of the cable from the connectorlabeled “SCSI” on the SCSI backplane board.4. Install the PowerEdge Expandable RAID Con-troller host adapter card in one of the PeripheralComponent Interconnect (PCI) expansion slots.See “Installing an Expansion Card” in Chapter 8.5. Connect the new Ultra/Wide SCSI cable providedin the PowerEdge Expandable RAID Controllerkit to the connector labeled “SCSI” on the SCSIbackplane board (see Figure 10-3).CAUTION: See “Protecting Against ElectrostaticDischarge” in the safety instructions at the front ofthis guide.
