Dell 4100 User Manual

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6-4 Dell PowerEdge 4100/180 and 4100/200 Systems User’s GuideSCSI Hard-Disk Drive Indicator PatternsThe three light-emitting diode (LED) indicators adjacentto each of the six SCSI hard-disk drive bays provideinformation on the status of the SCSI hard-disk drives.The SCSI backplane firmware controls the drive onlineand drive fault indicators, while the drive activity indica-tor is usually controlled by the drive itself.Table 6-1 lists the various drive indicator patterns. Differ-ent patterns are displayed as drive events occur. Forexample, in the event of a hard-disk drive failure, the“drive failed” pattern appears. After the drive is selectedfor removal, the “drive being prepared for removal” pat-tern appears, followed by the “drive ready for removal”pattern. After the replacement drive is installed, the“drive being prepared for operation” pattern appears,then the “drive online” pattern.Removing a SCSI Hard-Disk Drive With theSystem RunningRemove a SCSI hard-disk drive as follows:1. Wait until the drive status indicators adjacent tothe drive bay signal that the drive may beremoved.If the drive has been online, the three drive indica-tors will flash sequentially as the drive is powereddown. When all three indicators stop flashing, thedrive 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.Installing a SCSI Hard-Disk Drive With theSystem RunningInstall a SCSI hard-disk drive as follows:1. Remove the drive or empty carrier from the drivebay as described in the previous section.2. Insert the “new” drive carrier into the bay.Follow the instructions in “Installing a SCSI Hard-Disk Drive,” found earlier in this chapter.3. The drive online indicator will turn on.Configuring the Boot DeviceIf you plan to boot the system from a hard-disk drive, thedrive must be attached to the primary (or boot) controlleror SCSI host adapter. The primary controller is deter-mined according to the following general guidelines:• If the PCI SCAN SEQUENCE category in the SystemSetup program is set to EMBEDDED FIRST, the built-in Ultra/Wide host adapter is the primary controller.• If the PCI SCAN SEQUENCE category in the SystemSetup program is set to SLOT DEVICES FIRST, thesystem boots from a SCSI host adapter card in anexpansion slot. If two or more SCSI host adaptercards are installed, the boot order is determined bythe expansion slot the card is installed in. Indescending order of precedence, the boot order isPCI5, PCI4, PCI8, PCI7, PCI6.Table 6-1. SCSI Hard-Disk Drive IndicatorPatternsCondition Indicator PatternIdentify drive All three drive status indicatorsflash simultaneously.Drive being pre-pared for removalThe three drive status indicatorsflash sequentially.Drive ready forinsertion orremovalAll three indicators are off.Drive being pre-pared for operationThe drive online indicator is on.The drive activity indicator mayflash briefly.Drive bay empty All three indicators are off.Drive predictedfailureThe drive online indicator turnsoff. The drive fault indicatorblinks on briefly each second.Drive failed The drive online indicator turnsoff. The drive fault indicatorblinks off briefly each second.Drive rebuilding The drive online indicatorblinks rapidly.Drive online The online indicator is on.