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 SGI 1450 Server User's Guide
(document number: 007-4274-001 / published: 2000-06-02)    table of contents  |  additional info  |  download
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Chapter 4. Removing and Installing User Serviceable Components
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Chapter 4. Removing and Installing User Serviceable Components

This chapter describes how to remove and install user-serviceable components.

A user can remove and install hot-swappable SCSI hard drives and hot-pluggable PCI add-in boards. The term hot-swap describes the process of removing and installing a system component without shutting down the server. The term hot-plug describes the same process for PCI components only.

Note: At this time, the Linux operating system does not support use of the PCI Hot-Plug (PHP) feature. If you are running Linux, your system must be turned off before installing or removing PCI boards. Windows 2000 requires drivers that are PHP compatible in order to use the PHP feature.

Warning: The total power requirement for the SGI 1450 server exceeds the 240 VA energy hazard limit that defines an operator-accessible area. Only qualified service technicians should access the processor, memory, power subsystem, and non hot-plug/hot-swap areas of the baseboard.

Caution: Electrostatic discharge (ESD) and ESD protection: ESD can damage hard drives, add-in boards, and other components. This server can withstand normal levels of environmental ESD while you are hot-swapping SCSI hard drives. However, we recommend doing all procedures in this manual only at an ESD-protected workstation. If one is not available, provide some ESD protection by wearing an antistatic wrist strap attached to chassis ground of the server—any unpainted metal surface—when handling components.

SCSI Hard drives

The SGI 1450 server supports Ultra 160 SCSI SCA type 10K RPM or slower hard drives that are 3.5 inches wide. Contact a sales representative or dealer for a list of approved SCSI devices.

Mounting a SCSI Hard Drive in a Carrier

  1. Remove the 3.5-inch wide hard drive from its wrapper and place it on an antistatic surface.

  2. Record the drive model and serial number in your equipment log (see “Equipment Log”).

  3. Remove the carrier filler panel and save the screws. You will need them later in this procedure.

  4. Orient the drive so the connector is near the top and rear of the drive carrier. Figure 4-1 shows the orientation of the drive in the carrier. The carrier is upside down in this figure.

  5. Using the screws from step 3 or other screws of the correct size and length (not supplied), attach the carrier to the drive.

    Figure 4-1. Hard Drive in Drive Carrier


A. Hard Drive Carrier

B. Two (of Four) Fasteners Used to Attach Drive to Carrier

C. Hard Drive

D. SCA2 Connector

E. Locking Handle

Removing a SCSI Hard drive

A bank of five LEDs on the front of the hard drive bays monitors the drive status of each drive in the hot-docking bay. Each LED corresponds directly to a drive, so that the left most LED shows activity in the left most drive. The LEDs and corresponding drives are numbered (left to right) zero to four. When a yellow LED for a hard drive is on continuously, you are permitted to hot-swap (replace) a bad drive with a good one. If the operating system installed supports hot-swapping hard drives, the system does not need to be powered off.

To remove a SCSI hard drive, perform the following steps:

  1. Open the front bezel door by simultaneously pulling on the raised lip of the front bezel door and putting counter pressure on the bezel latch area. See Figure 4-2 for an illustration of the procedure.

    Figure 4-2. Opening the Front Bezel Door


  2. Determine which drive needs to be removed. If necessary, use the LED states below to make this determination.

    Table 4-1. Hard Drive LED State Status

    LED State

    Status

    Solid green

    The hard drive is present and powered on.

    Flashing green

    The hard drive is active.

    Solid yellow

    There is an asserted fault status on the hard drive.

    Flashing yellow

    A rebuild of the hard drive is in progress.

    Off

    The hard drive is not powered on.


  3. Depress the handle lock with your thumb.

  4. Gently pull the locking handle away from the chassis until the handle disengages.

  5. Grasp the locking handle and pull it toward you to disengage the drive connector from the backplane connector. The locking handle is noted by “A” in Figure 4-3.

    Figure 4-3. Disengaging Drive Carrier from Chassis


  6. Carefully slide the drive out of the bay. Place the drive on an antistatic surface.

Installing a SCSI Hard Drive

A bank of five LEDs on the front of the hard drive bays monitors the drive status of each drive in the hot-docking bay. Each LED corresponds directly to a drive, so that the right most LED shows activity in the right most drive. The LEDs and corresponding drives are numbered (left to right) zero to four. When a yellow LED for a hard drive is on continuously, you are permitted to hot-swap (replace) a bad drive with a good one. If the operating system installed supports hot-swapping hard drives, the system does not need to be powered off.

To install a SCSI hard drive, perform the following steps:

  1. Open the front bezel door by simultaneously pulling on the raised lip of the front bezel door and putting counter pressure on the bezel latch area. See Figure 4-2 for an illustration of the procedure.

  2. Position the new carrier and drive assembly so that it engages the bay guide rails.

  3. Gently push the drive into the bay. Swing the locking handle towards the chassis. The locking handle engages the latch.

  4. Close the front bezel door by pressing the door gently into the chassis.

Hot-Plug PCI Add-In Boards

The SGI 1450 server supports six hot-plug PCI add-in boards. The six slot openings (seen from the back of the system) are shown in Figure 1-7.

Each hot-plug PCI add-in board is held in place by a PCI Hot-Plug (PHP) Retention mechanism (see Figure 4-4).

Note: At this time, the Linux operating system does not support use of the PCI Hot-Plug (PHP) feature. If you are running Linux, your system must be turned off before installing or removing PCI boards. Windows 2000 requires drivers that are PHP compatible in order to use the PHP feature.

Figure 4-4. PCI Hot-Plug Retention Mechanism


A. Green and Amber LEDs

B. Press here on the inside of the chassis and then rotate to release the PCI board.

C. PCI Hot-plug Retention Mechanism from the outside of the chassis

D. HW push button

The rear of add-in boards is held in place by a rear retention latch only for full-length boards. See Figure 4-5 for an illustration of the rear retention latch.

Figure 4-5. Rear Retention Latch


A. Hot-plug PCI add-in board

B. Close up of rear retention latch in the closed position

C. Rear retention latch in the closed position

Removing a Hot-Plug PCI Add-in Board

Warning: If the system has been running, any installed PCI add-in board on the baseboard will be hot. To avoid the possibility of a burn, be careful when removing or installing baseboard components, especially those that are located near processors.

Caution: Slot covers must be installed on all vacant expansion slots. This maintains the electromagnetic emissions characteristics of the system and ensures proper cooling of system components.

Note: At this time, the Linux operating system does not support use of the PCI Hot-Plug (PHP) feature. If you are running Linux, your system must be turned off before installing or removing PCI boards. Windows 2000 requires drivers that are PHP compatible in order to use the PHP feature.

  1. Observe the safety and ESD precautions at the beginning of this chapter.

  2. Release the two thumbscrews located on the top rear of the chassis. One of two thumbscrews is noted by “A” in Figure 4-6.

    Figure 4-6. Top Cover Thumbscrew


  3. Using an even pull, press lightly on the top cover and slide it back until it stops.

  4. Lift the entire top cover upward away from the chassis.

  5. Make sure that the slot is powered off. If the slot is powered on, turn the power to the slot off through the PCI Hot-Plug application on your system or through the HW push button.

  6. Disconnect any cables attached to the board you are removing.

  7. Press down on the PCI Hot-Plug (PHP) retention mechanism from inside the chassis. Rotate the mechanism outside the chassis and towards the bottom of the chassis. This action frees the card's faceplate. See Figure 4-4.

  8. If you are removing a full-length board, release the rear retention latch. See Figure 4-5.

  9. Remove the PCI board by pulling straight up.

  10. Store board in an antistatic protective wrapper.

  11. If you are not reinstalling a board in the same slot, install a slot cover over the vacant slot. The tapered foot of the cover must fit into the mating slot in the expansion slot frame.

  12. Before replacing the top cover, check that no loose tools or parts were left inside the system.

  13. Position the cover over the chassis so that the rows of tabs align with slots in the chassis. Slide the cover toward the front of the system until the tabs on the cover firmly engage in the chassis.

  14. Attach the top cover to the chassis with the two thumbscrews released earlier and tighten them firmly.

  15. Connect any external cables.

  16. Running the SSU is optional after you remove a PCI add-in board.

Installing a Hot-Plug PCI Add-in Board

Warning: If the system has been running, any installed PCI add-in board on the baseboard will be hot. To avoid the possibility of a burn, be careful when removing or installing baseboard components, especially those that are located near processors.

Caution: Do not overload baseboard: Do not draw too much current from the baseboard by installing add-in boards that draw excessive current.

Caution: ESD and handling boards: Add-in boards can be extremely sensitive to ESD and always require careful handling. After removing the board from its protective wrapper or from the baseboard, place it component-side up on a grounded, static-free surface or conductive foam pad, if available. Do not slide the board over any surface.

Note: At this time, the Linux operating system does not support use of the PCI Hot-Plug (PHP) feature. If you are running Linux, your system must be turned off before installing or removing PCI boards. Windows 2000 requires drivers that are PHP compatible in order to use the PHP feature.

  1. Observe the safety and ESD precautions at the beginning of this chapter and this procedure.

  2. Release the two thumbscrews located on the top rear of the chassis. One of two thumbscrews is noted by “A” in Figure 4-6.

  3. Using an even pull, press lightly on the top cover and slide it back until it stops.

  4. Lift the entire top cover upward away from the chassis.

  5. Remove add-in board from its protective wrapper. Be careful not to touch the components or gold edge connectors. Place board component-side up on an antistatic surface.

  6. Record the serial number of the add-in board in your equipment log (see “Equipment Log”).

  7. Make sure that the slot is powered off. If the slot is powered on, turn the power to the slot off through the PCI Hot-Plug application on your system or through the HW push button.

  8. Set jumpers or switches on the board according to the manufacturer's instructions.

  9. Remove and save the expansion slot cover, if one was present.

  10. Hold the add-in board by its top edge or upper corners. Firmly press it into an expansion slot on the baseboard. The tapered foot of the board-retaining bracket must fit into the mating slot in the expansion slot frame.

  11. Press in the PCI Hot-plug (PHP) retention mechanism toward the back panel. This action locks the add-in board into place. See Figure 4-4.

  12. If you are installing a full-length board, lock the rear retention latch. See Figure 4-5.

  13. Use the screw removed earlier to fasten the new board to the chassis. Tighten the screw firmly (6.0 inch-pounds).

  14. Attach cables if necessary.

  15. Power on the add-in board through the PCI Hot-Plug application on your system or through the HW push button.

  16. Check that no loose tools or parts were left inside the system.

  17. Position the top cover over the chassis so that the rows of tabs align with slots in the chassis. Slide the cover toward the front of the system until the tabs on the cover firmly engage in the chassis.

  18. Attach the top cover to the chassis with the two thumbscrews released earlier and tighten them firmly.

  19. Connect any external cables.

Equipment Log

Use the blank equipment log provided here to record information about the system. Some of this information may be required when running the System Setup Utility (SSU).

Table 4-2. Equipment Log

Item

Manufacturer Name

Model Number

Serial Number

Date Installed

System

 

 

 

 

Baseboard

 

 

 

 

Processor speed and cache

 

 

 

 

Processor speed and cache

 

 

 

 

Processor speed and cache

 

 

 

 

Processor speed and cache

 

 

 

 

Video display

 

 

 

 

Keyboard

 

 

 

 

Mouse

 

 

 

 

Diskette drive A

 

 

 

 

Diskette drive B

 

 

 

 

Tape drive

 

 

 

 

CD-ROM drive

 

 

 

 

Hard drive 1

 

 

 

 

Hard drive 2

 

 

 

 

Hard drive 3

 

 

 

 

Hard drive 4

 

 

 

 

Hard drive 5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


Prev Table of Contents Next
Chapter 3. Configuring Software and Utilities  Appendix A. Regulatory Specifications 

SGI 1450 Server User's Guide
(document number: 007-4274-001 / published: 2000-06-02)    table of contents  |  additional info  |  download

    Front Matter
    About This Guide
    Chapter 1. Chassis Description
    Chapter 2. Baseboard Description
    Chapter 3. Configuring Software and Utilities
    Chapter 4. Removing and Installing User Serviceable Components
    Appendix A. Regulatory Specifications
    Appendix B. Physical Environment Specifications
    Appendix C. Safety Precautions
    Index


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