I Nstalling A Poweredge Expandable Raid Controller Host Adapter Card; System Running - Dell 4100 Installation And Troubleshooting Manual

S
CSI Hard-Disk Drive Indicator Patterns
The three light-emitting diode (LED) indicators adjacent
to each of the six SCSI hard-disk drive bays provide
information on the status of the SCSI hard-disk drives.
The SCSI backplane firmware controls the drive online
and drive fault indicators, whereas the drive access indi-
cator is usually controlled by the drive itself.
Table 10-1 lists the various drive indicator patterns. Dif-
ferent patterns are displayed as drive events occur. For
example, in the event of a hard-disk drive failure, the
"drive failed" pattern appears. After the drive is selected
for 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.
Table 10-1. SCSI Hard-Disk Drive Indicator
Patterns
Condition Indicator Pattern
Identify drive All three drive status indicators
flash simultaneously.
Drive being pre- The three drive status indicators
pared for removal flash sequentially.
Drive ready for All three indicators are off.
insertion or
removal
Drive being pre- The drive online indicator is on.
pared for operation The drive activity indicator may
flash briefly.
Drive bay empty All three indicators are off.
Drive predicted The drive online indicator turns
failure off. The drive fault indicator
blinks on briefly each second.
Drive failed The drive online indicator turns
off. The drive fault indicator
blinks off briefly each second.
Drive rebuilding The drive online indicator
blinks rapidly.
Drive online The online indicator is on.
10-4 Dell PowerEdge 4100/180 and 4100/200 Systems Installation and Troubleshooting Guide
Removing a SCSI Hard-Disk Drive With the

System Running

Remove a SCSI hard-disk drive as follows:
1. Wait until the drive status indicators adjacent to
the drive bay signal that the drive may be
removed safely.
If the drive has been online, the three drive indica-
tors will flash sequentially as the drive is powered
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 the
System Running
Insert a SCSI hard-disk drive as follows:
1. Remove the drive or empty carrier from the drive
bay 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.
I
nstalling a PowerEdge Expandable
RAID Controller Host Adapter Card
Use the following procedure to install the PowerEdge
Expandable RAID Controller host adapter card:
1. Unpack the PowerEdge Expandable RAID Con-
troller host adapter card, and prepare it for
installation.
Refer to the documentation accompanying the host
adapter card.