Dell PowerEdge systems 6300 Manuel utilisateur
™
www.dell.com
Dell™ PowerEdge™ 6300 and 4x00 Systems
SCSI Backplane Option
Systèmes Dell™ PowerEdge™ 6300 et 4x00
Option de fond de panier SCSI
Dell™ PowerEdge™ 6300 und 4x00 Systeme
SCSI-Backplane-Option
Sistemas Dell™ PowerEdge™ 6300 y 4x00
Opción de plano posterior SCSI
www.dell.com
™
Dell™ PowerEdge™ 6300
and 4x00 Systems
SCSI BACKPLANE OPTION
Notes, Notices, Cautions, and Warnings
Throughout this guide, blocks of text may be accompanied by an icon and printed in
bold type or in italic type. These blocks are notes, notices, cautions, and warnings,
and they are used as follows:
NOTE: A NOTE indicates important information that helps you make better use of
your computer system.
NOTICE: A NOTICE indicates either potential damage to hardware or loss
of data and tells you how to avoid the problem.
CAUTION: A CAUTION indicates a potentially hazardous situation which, if
not avoided, may result in minor or moderate injury.
WARNING: A WARNING indicates a potentially hazardous situation which,
if not avoided, could result in death or serious bodily injury.
____________________
Information in this document is subject to change without notice.
© 1999 Dell Computer Corporation. All rights reserved.
Trademarks used in this text:Dell,theDELL logo, and PowerEdge are trademarks of Dell Computer
Corporation. Other trademarks and trade names may be used in this document to refer to either
the entities claiming the marks and names or their products. Dell Computer Corporation disclaims
any proprietary interest in trademarks and trade names other than its own.
October 1999 P/N 03DJD Rev. A00
support.dell.com Dell PowerEdge 6300 and 4x00 Systems SCSI Backplane Option 1-1
Dell™ PowerEdge™6300
and 4x00 Systems
SCSI Backplane Option
This document describes the optional small computer system interface (SCSI) back-
plane for the Dell PowerEdge 6300 and 4x00 systems.
The 1 x 8 SCSI backplane provides hot-pluggable Ultra2/LVD SCSI connections for up
to eight 1-inch hard-disk drives in the system’s internal drive compartment. Except for
the added SCSI connections provided on the board, the 1 x 8 backplane is identical to
the 1 x 6 backplane in features and functionality (for example, the cable connectors on
both backplanes are identical). For a description of the SCSI backplane, refer to your
system User’s Guide and Installation and Troubleshooting Guide.
NOTE: Before you install the 1 x 8 backplane, verify that your system chassis supports
it. Check the back of your system for a label (located between the connectors and the
first power supply) that specifies that your chassis supports the 1 x 8 backplane. If you
do not find a label, you may not be able to use the 1 x 8 backplane in your system
chassis. Contact your Dell representative for further information and instructions.
Installing a SCSI Backplane
WARNING: The power supplies in this computer system produce high volt-
ages and energy hazards, which can cause bodily harm. Only trained
service technicians are authorized to remove the computer cover and
access any of the components inside the computer.
NOTE: You can use only 1-inch hard-disk drives with the 1 x 8 backplane. You
cannot use 1.6-inch hard-disk drives with the 1 x 8 backplane. To work with the
1 x 8 backplane, you need to convert the drive carriers to the 1-inch width by removing
the spacer insert that fastens to each carrier adjacent to the carrier release handle.
To replace a SCSI backplane board with a different backplane board, perform the fol-
lowing steps.
1-2 Dell PowerEdge 6300 and 4x00 Systems SCSI Backplane Option
NOTICE: See "Protecting Against Electrostatic Discharge" in the Installation
and Troubleshooting Guide.
1. Unpack the SCSI backplane board.
Refer to the documentation accompanying the host adapter card.
WARNING: Before you continue with this procedure, you must turn off the
computer and disconnect it from its AC power source. For more information,
see "Safety First—For You and Your Computer" in the Installation and
Troubleshooting Guide.
2. Turn off the system, including any attached peripherals, and disconnect the sys-
tem AC power cable from its power source.
3. Remove the computer cover.
NOTICE: You must remove all hard-disk drives to avoid damaging the SCSI
backplane board when you remove it later in this procedure.
4. Remove the hard-disk drives from the system.
5. Slide the system board tray to its service position (see Figure 1-1).
6. Disconnect the Ultra160/m SCSI cable from the SCSI backplane board.
To avoid damage to the cable, use the strain-relief loop to disconnect the cable.
7. Disconnect the flat data cable from the locking connector on the backplane
board.
8. Disconnect the power cable labeled "HD-B/P" from the power connector on the
backplane board.
To release the connector, press the latch on the side of the connector.
9. Disconnect the fan power cable from the power connector labeled "FAN" on the
backplane board.
To release the connector, press the latch on the side of the connector.
10. Loosen the captive thumbscrew on the backplane board.
11. Slide the SCSI backplane board away from the chassis inner wall approximately
1 cm (1/4 inch), and then lift the board off of the L-shaped mounting tabs and
away from the chassis (see Figure 1-1).
support.dell.com Dell PowerEdge 6300 and 4x00 Systems SCSI Backplane Option 1-3
Figure 1-1. Removing a SCSI Backplane Board
12. Install the new backplane board:
a. While holding the backplane board by its edges, position the board so that
the tabs on the computer chassis wall fit through the corresponding slots in
the backplane board.
b. Slide the backplane board toward the power-supply paralleling board (PSPB).
c. Secure the backplane board by tightening the captive screw.
13. Connect the 20-pin data cable leading from the system board to the connector
labeled "PLANAR" on the backplane board (see Figure 1-2).
1Thumbscrew
2SCSI backplane board
1-4 Dell PowerEdge 6300 and 4x00 Systems SCSI Backplane Option
Figure 1-2. Back of SCSI Backplane Board
14. Connect the power cable labeled "HD-B/P" to the connector labeled "POWER" on
the backplane board.
15. Connect the Ultra160/m SCSI cable leading from the connector labeled "SCSI2"
on the system board to the connector labeled "SCSIA" on the backplane board.
16. Slide the system board tray back into the system chassis.
17. Does the new SCSI backplane board have a different number of drive bays?
Ye s . You must change the orientation of the two drive bay keys to match the new
backplane. Go to step 18.
No. Go to step 25.
18. Remove the front bezel.
19. Turn the key in the keylock to lock the drive locking flange (see Figure 1-3).
With the flange in the locked position, you have easier access to the upper drive
bay key screws.
1Cooling fan power cable connector (FAN)
2Power connector (POWER)
3System-board data cable connector (PLANAR)
4Ultra160/m SCSI cable connector (SCSIA)
support.dell.com Dell PowerEdge 6300 and 4x00 Systems SCSI Backplane Option 1-5
Figure 1-3. Removing the Drive Bay Keys
20. To remove the upper drive bay key, remove the three screws.
21. To remove the lower drive bay key, remove the three screws securing the key to
the chassis.
22. Turn the key in the keylock to unlock the drive locking flange.
The drive alignment key cannot be removed when the drive locking flange is in
the locked position.
23. Rotate each drive bay key so that the "6" or "8" stamped on the end of each key
faces forward and matches the drive capacity of the new backplane (see
Figure 1-4).
1Screws (6)
2Drive locking flange
1-6 Dell PowerEdge 6300 and 4x00 Systems SCSI Backplane Option
Figure 1-4. Reinstalling the Drive Bay Keys
24. Reinstall the lower drive bay key using the three screws.
25. To reinstall the upper drive bay key, lock the drive locking flange and reinstall the
three screws through the flange cutouts.
26. Replace the front bezel.
27. Replace the computer cover.
28. Reinstall the hard-disk drives in the computer.
NOTE: You can use only 1-inch hard-disk drives with an eight-bay backplane—you
cannot use 1.6-inch hard-disk drives. (A six-bay backplane can accommodate
1.6-inch or 1-inch drives.) If you install a 1 x 8 backplane, you need to convert the
drive carriers to the 1-inch width by removing the spacer insert that fastens to
each carrier adjacent to the carrier release handle.
29. Reconnect the computer to its AC power source.
1Key stamp
2Lower drive bay key
3Upper drive bay key
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