Your system features five standard internal hard-drive bays that accommodate up to five 3.5-inch SCSI hard drives. Systems with an optional RAID controller card or optional ROMB support hot-plug SCSI drive operation.
The system's peripheral bay can accommodate a removable drive carrier that supports an optional diskette drive and optional optical drive.
Installing SCSI Hard Drives
Figure 7-1 shows the SCSI ID numbers of the five standard drive bays.
Figure 7-1. Hard-Drive SCSI ID Numbers
Before You Begin
SCSI hard drives are supplied in special drive carriers that fit in the hard-drive bays.
NOTICE: Before attempting to remove or install a drive while the system is running, see the documentation for the optional RAID controller card or optional ROMB to ensure that the host adapter is configured correctly to support hot-plug drive removal and insertion.
NOTE: It is recommended that you use only drives that have been tested and approved for use with the SCSI backplane board.
You may need to use different programs than those provided with the operating system to partition and format SCSI hard drives.
NOTICE: Do not turn off or reboot your system while the drive is being formatted. Doing so can cause a drive failure.
When you format a high-capacity SCSI hard drive, allow enough time for the formatting to be completed. Long format times for these drives are normal. A 9-GB hard drive, for example, can take up to 2.5 hours to format.
Installing a SCSI Hard Drive
NOTICE: Hot-plug drive installation is not supported for systems without an optional RAID controller card or optional ROMB.
If the system does not have an optional RAID controller card or optional integrated ROMB,
shut down the system.
Remove the front bezel, if attached. See "Opening the System" in "Troubleshooting Your
System."
Insert the hard drive into the drive bay. See Figure 7-2.
Close the hard-drive handle to lock the drive in place.
Replace the front bezel, if it was removed in step 2.
If the hard drive is a new drive, run the SCSI Controllers test in the system diagnostics.
Removing a SCSI Hard Drive
NOTICE: Hot-plug drive removal is not supported for systems without an optional RAID controller card or optional ROMB. Hot-plug capabilities must also be enabled when using an optional RAID controller card or optional ROMB.
If the system does not have an optional RAID controller card or optional ROMB, shut down
the system.
Remove the front bezel, if attached. See "Opening the System" in "Troubleshooting Your
System."
For systems with a RAID controller card or ROMB, power down the hard-drive bay and wait
until the SCSI hard-drive indicators on the drive carrier signal that the drive can be removed
safely.
If the drive has been online, the green power-on/fault indicator flashes as the drive is preparing for removal. When the indicator is off, the drive is ready for removal.
Open the hard-drive handle to release the drive.
Slide the hard drive out until it is free of the drive bay.
Replace the front bezel, if it was removed in step 2.
Installing a Diskette Drive
CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.
Turn off the system, including any attached peripherals, and disconnect the system from the
electrical outlet.
Remove the front bezel, if attached. See "Opening the System" in "Troubleshooting Your
System."
To remove the drive carrier, pull the release latch forward, then slide the carrier out of the
chassis. See Figure 7-3.
Figure 7-3. Installing and Removing the Diskette/Optical Drive Carrier
Remove the optical drive or optical drive filler plate from the carrier:
Loosen the thumbscrew on the latch securing the optical drive or filler plate. See
Figure 7-4.
Remove the latch.
Lift the optical drive or optical drive filler plate from the carrier.
Figure 7-4. Installing a Diskette Drive in the Drive Carrier
To remove the diskette drive filler plate, pull the retention spring slightly away from the filler
plate, then lift the filler plate from the carrier.
Deflect the retention spring slightly, then insert the diskette drive into the carrier.
The pins on the carrier fit into the corresponding holes in the side of the drive. See Figure 7-4.
Replace the optical drive or optical drive filler plate in the carrier.
The pins on the carrier fit into the corresponding holes in the side of the drive.
Reinstall the latch and tighten the thumbscrew.
Replace the front bezel, if it was removed in step 2. See "Closing the System" in
"Troubleshooting Your System."
Reconnect the system and peripherals to their electrical outlets.
Installing an Optical Drive
CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.
Turn off the system, including any attached peripherals, and disconnect the system from the
electrical outlet.
Remove the front bezel, if attached. See "Opening the System" in "Troubleshooting Your
System."
To remove the drive carrier, pull the release latch forward, then slide the carrier out of the
chassis. See Figure 7-3.
Remove the optical drive filler plate from the carrier:
Loosen the thumbscrew from the latch securing the optical drive or filler plate. See
Figure 7-5.
Remove the latch.
Lift the optical drive filler plate from the carrier.
Figure 7-5. Installing an Optical Drive in the Drive Carrier
Install the new optical drive in the carrier. See Figure 7-5.
The pins on the carrier fit into the corresponding holes in the side of the drive.
Attach the interface board to the back of the carrier, using the two plastic rivets. See
Figure 7-5.
Reinstall the latch and tighten the thumbscrew.
Close the system. See "Closing the System" in "Troubleshooting Your System."
Replace the front bezel, if it was removed in step 2. See "Closing the System" in
"Troubleshooting Your System."
Reconnect the system and peripherals to their electrical outlets.
Connecting an External SCSI Tape Drive
This subsection describes how to configure and install an external SCSI tape drive. The drive may be connected to the integrated SCSI controller using the SCSI connector on the system back panel, or to an optional SCSI controller card.
CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.
Turn off the system, including any attached peripherals, and disconnect the system from the
electrical outlet.
Remove the front bezel, if attached. See "Opening the System" in "Troubleshooting Your
System."
Open the system. See "Opening the System" in "Troubleshooting Your System."
Ground yourself by touching an unpainted metal surface on the back of the system, unpack
the drive, and compare the jumper and switch settings with those in the documentation that
came with the drive.
Unpack the tape drive (and controller card, if applicable) and configure the tape drive
according to the documentation that came with the tape drive, based on the following
guidelines:
Each device attached to a SCSI host adapter must have a unique SCSI ID number.
(Narrow SCSI devices use IDs 0 to 7; wide SCSI devices use IDs from 0 to 15). Set the
drive's SCSI ID to avoid conflicts with other devices on the SCSI bus. For the default
SCSI ID setting, see the documentation provided with the drive.
NOTE: There is no requirement that SCSI ID numbers be assigned sequentially or that devices be attached to the cable in order by ID number.
SCSI logic requires that the two devices at opposite ends of a SCSI chain be terminated
and that all devices in between be unterminated. Therefore, you enable the tape drive's
termination if it is the last device in a chain of devices (or sole device) connected to the
SCSI controller.
If you are connecting the drive to a controller card, install the controller card in an expansion
slot. See "Installing an Expansion Card" in "Installing System Components."
Connect the tape drive's SCSI interface cable to the drive.
Connect the other end of the SCSI interface cable to the SCSI controller card, or the external
SCSI connector on the system's back panel (see Figure 2-2).
Connect the tape drive's power cable to an electrical outlet.
Close the system. See "Closing the System" in "Troubleshooting Your System."
Replace the front bezel, if it was removed in step 2. See "Closing the System" in
"Troubleshooting Your System."
Reconnect the system and peripherals to their electrical outlets, and turn them on.
Perform a tape backup and verification test with the drive as instructed in the software
documentation that came with the drive.
Configuring the Boot Drive
The drive or device from which the system boots is determined by the boot order specified in the System Setup program. See "Using the System Setup Program" in your User's Guide.
SCSI Backplane Daughter Card
Removing the SCSI Backplane Board
CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.
Turn off the system and attached peripherals, and disconnect the system from the electrical
outlet.
Open the system. See "Opening the System" in "Troubleshooting Your System."
NOTICE: To prevent damage to the drives and backplane, you must remove the SCSI drives and diskette/optical drive carrier from the system before removing the backplane. You must note the number of each hard drive and temporarily label them before removal, so you can replace them in the same locations.
Remove the diskette/optical drive carrier. See Figure 7-3.
Remove the processor filler blanks or heat sinks from processors 2 and 4. See "Processor" in
"Installing System Components."
Disconnect the SCSI, data interface, and power cables from the front of the SCSI backplane.
See Figure A-5.
NOTICE: When disconnecting the control-panel cable, hold the white pull-tab next to the control-panel cable connector to prevent damage to the SCSI backplane or the cable itself.
Disconnect the control-panel cable from the back of the SCSI backplane. See Figure A-5.
Remove the SCSI backplane:
Pull the spring-loaded blue retention pin away from the front of the backplane, then slide
the backplane upward. See Figure 7-6.
When the backplane cannot slide upward any farther, pull the backplane toward the back
of the system to remove it from the retention hooks.
Lift the board out of the system, being careful to avoid damaging components on the face
of the board.
Place the SCSI backplane face down on a work surface.
Figure 7-6. Removing and Installing the SCSI Backplane
Installing the SCSI Daughter Card
Hold the daughter card by its edges with the card connector facing the SCSI backplane board.
Insert the card connector into the daughter card connector on the SCSI backplane board. See
Figure 7-7. Ensure that the standoffs on the daughter card are fully seated into the SCSI
backplane board.
Figure 7-7. Installing and Removing the SCSI Backplane Daughter Card
Reconnect the system to its electrical outlet and turn the system on, including any attached
peripherals.
If applicable, reattach the bezel.
Activating the Optional Integrated RAID Controller
This subsection explains how to activate your system's integrated RAID controller.
CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.
CAUTION: Replace the battery only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer's instructions. See your Product InformationGuide for additional information.
NOTICE: To avoid possible data loss, back up all data on the hard drives before changing the mode of operation of the integrated SCSI controller from SCSI to RAID.
Turn off the system, including any attached peripherals, and disconnect the system from the
electrical outlet.
Insert the RAID hardware key into its connector on the system board and secure the key with
the latches on each end of the connector. See Figure 7-8 and Figure A-3.
Figure 7-8. Activating the Integrated RAID Controller
Locate the RAID memory module connector on the system board. See Figure 7-8 and
Figure A-3.
Push the ejectors on the RAID memory module connector outward to allow the memory
module to be inserted into the connector.
Align the RAID memory module's edge connector with the alignment keys, and insert the
memory module into the connector.
NOTE: Do not substitute registered memory modules such as those used for system memory. Use the memory module supplied in the RAID upgrade kit.
Press on the memory module with your thumbs while closing the ejectors with your index
fingers to lock the memory module into the connector.
Insert the RAID battery into the battery holder. See Figure 7-8.
Connect the battery power cable to the RAID battery cable connector on the system board.
See Figure A-4.
Reconnect the system to its electrical outlet and turn the system on, including any attached
peripherals.
Enter the System Setup program and verify that the setting for the SCSI controller has
changed to reflect the presence of the RAID hardware. See "Using the System Setup Program"
in your User's Guide.
Install and configure the RAID software.
See the RAID software documentation for more information.
Installing a RAID Controller Card
See "Installing an Expansion Card" in "Installing System Components" for instructions about installing the card. See the RAID controller documentation for information on installing and configuring the RAID software.
SCSI Hard-Drive Cabling Guidelines
Non-RAID Configurations
For a system without an optional RAID controller installed, connect SCSI channel A on the system board to connector SCSI A on the SCSI backplane board. If the optional external SCSI cable is installed, connect it to SCSI channel B on the system board.
RAID Configurations
If the optional ROMB controller is enabled, or an optional RAID controller card is installed, you can configure the hard drives for RAID operation. The general cabling configurations for various system options are discussed in the following subsections. For details on drive requirements for specific RAID types, see your RAID controller documentation.
1+5 Drive Configuration
For a 1+5 drive configuration, connect SCSI channel A on the system board (see Figure A-4) or SCSI channel A on the optional RAID card to connector SCSI A on the 1+5 backplane (see Figure A-5). Drive 0 functions as the boot drive.
2+3 Split Backplane Configurations
NOTICE: An optional daughter card must be installed on the back of the 1+5 SCSI backplane to support split 2+3 backplane operation.
To use the optional integrated ROMB controller in a split 2+3 backplane configuration:
Connect SCSI channel A on the system board (see Figure A-3) to connector SCSI A on the SCSI backplane (see Figure A-5). This channel controls the boot drive (drive 0) and drives 1 and 2.
Connect SCSI channel B on the system board (see Figure A-3) to connector SCSI B on the SCSI backplane (see Figure A-5). This channel controls drives 3 and 4.
To use an optional RAID controller card in a split 2+3 backplane configuration:
Connect SCSI channel A (channel 0) on the controller card to connector SCSI A on the SCSI backplane (see Figure A-5). This channel controls the boot drive (drive 0) and drives 1 and 2.
Connect SCSI channel B (channel 1) on the controller card to connector SCSI B on the SCSI backplane (see Figure A-5). This channel controls drives 3 and 4.
