6 Installing the Drive in a SCSI Expansion Pedestal



Make sure you have read the Preface for the safety precautions and Chapter 1 for an overview of the installation and replacement procedures and the list of required tools before proceeding with this chapter.

6.1 Preparing the System

Complete the procedures in the following sections to prepare your system for installing or replacing a 5.0 Gbyte 8 mm tape drive.

6.1.1 Powering Off the SCSI Expansion Pedestal

You must first power off the SCSI Expansion Pedestal before proceeding with the following sections. Refer to the Sun SCSI Expansion Pedestal Installation Manual (P/N 800-7285-xx) for instructions on safely powering off the pedestal.

6.1.2 Disconnecting the Data Cable

Follow these instructions to disconnect the data cable from the top SCSI tray:

    1. Face the rear of the SCSI Expansion Pedestal and locate the data cable connected to the top SCSI tray port.

    The data cable will be plugged into one of the two top SCSI tray ports at the rear of the pedestal; a terminator will be plugged into the other top SCSI tray port (see Figure 6-1 for the location of the top SCSI tray ports).

    Figure 6-1 Location of the Top SCSI Tray Ports (Rear View)

    2. Squeeze the locking tabs on the sides of the connector body on the data cable and gently pull the connector out from the top SCSI tray port.

    Do not remove the terminator from the remaining top SCSI tray port.

6.1.3 Removing the Front Panel

Follow these instructions to remove the front panel from the SCSI Expansion Pedestal:

    1. Face the front of the SCSI Expansion Pedestal and grasp the base of the front panel (see Figure 6-2).

    Figure 6-2 Removing the Front Panel and Bumper Assembly

    2. Pull sharply on the base of the front panel to disengage the ball studs at the base, middle, and top of the front panel.
    3. Remove the front panel and bumper assembly.

6.1.4 Removing the EMI Front Cover Assembly

Follow these instructions to remove the EMI front cover assembly from the SCSI Expansion Pedestal:

    1. Use the 7 mm hex socket to remove the six M4 hex-head screws (see Figure 6-3).

    Figure 6-3 EMI Front Cover Assembly Removal

    2. Use the flat-head screwdriver to loosen the four captive screws (see Figure 6-3).
    3. Gently pull the cover until it has disengaged from the top of the cabinet.

    Grasp the formed handle on the EMI front cover. The cover will still be connected at the bottom via a slotted bayonet mount.

    4. Reach inside the EMI front cover and disconnect the cable that is connected to the LED/switch PCB assembly (see Figure 6-3).

    To disconnect the cable, squeeze the rocker tab on the connector housing and gently pull away from the printed circuit board assembly. Unclip the cable from the strain relief, located on the EMI front cover assembly below the LED/switch PCB assembly.

    5. Lift the EMI front cover assembly up to disengage the base from the bottom of the pedestal frame.

    Put the EMI front cover assembly to one side.

6.1.5 Removing the Top SCSI Drive Tray

Follow these instructions to remove the top SCSI drive tray from the pedestal:

    1. Face the front of the SCSI Expansion Pedestal and disconnect the DC harness connectors from the DC connectors mounted in the front of the SCSI drive tray (see Figure 6-4).

    To disconnect the cable, squeeze the rocker tabs on the DC connector housing and gently pull away from the drive tray DC connector housing. Move the cables to the side.

    Figure 6-4 Removing the Top SCSI Drive Tray

    2. Use the 7 mm hex socket to remove the four M4 hex-head screws (see Figure 6-4).
    3. Gently slide the SCSI drive tray forward and out of the chassis.
    4. Set the SCSI drive tray in a safe and secure area.

6.2 Unpacking and Inspecting the Tape Drive

Caution -

Circuit board components can be damaged by electrostatic discharge (ESD). An electrostatic charge can build up on the human body and then discharge when you touch a board or a magnetic storage device, such as a tape drive. Such discharge can be produced by walking across a carpet and touching a board, or by any other similar action. Before handling any board or magnetic storage device, make sure you dissipate your body's charge by following these instructions carefully.

Follow these instructions to unpack and inspect the drive:

    1. Unpack the 5.0 Gbyte 8 mm tape drive.
    2. Place the tape drive on top of the bag it was shipped in.

    Placing the drive on the bag will prevent static discharge from accumulating in the device.

    3. Inspect the tape drive for evidence of damage.

    If damaged, keep all contents and packing materials for the carrier's agent to inspect.

    4. Verify that the shipping container has all the contents you will need to install the 5.0 Gbyte 8 mm tape drive.

    The shipping container should have the following items:

    5. Save packing materials for future use.

6.3 Setting the SCSI Address

Follow these instructions to set the SCSI address on your 5.0 Gbyte 8 mm tape drive:

    1. Determine if there are any jumpers installed on the SCSI ID connector at the rear of the tape drive (see Figure 6-5 for the location of the SCSI ID connector).

    A jumper is a small sleeve that slides over two adjacent pins in the SCSI ID connector to provide an electrical connection. If there are jumpers installed on the SCSI ID connector, remove the jumpers using the needle-nosed pliers.

    Figure 6-5 Location of the SCSI ID Connector and the SCSI ID DIP Switches on the 5.0 Gbyte 8 mm Tape Drive (Rear View)

    2. Determine where you will install the tape drive in the SCSI Expansion Pedestal.

    The tape drive can only be installed in the top tray of your SCSI Expansion Pedestal, but there are two available locations for the tape drive in the top tray (see Figure 6-6). The location of the tape drive will determine which SCSI address it will have.

    Figure 6-6 Two Tape Drives in the Top Tray

    3. Change the settings on the SCSI ID DIP switches to set the correct SCSI address for the tape drive (see Figure 6-5 for the location of the SCSI ID DIP switches).

    Refer to Table 6-1 and change the settings on the SCSI ID DIP switches to assign the desired SCSI address.

    Table 6-1 SCSI ID Setting 

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SCSI ID Setting  DIP Switches Positions
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4                


                 
5                



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    4. Determine if you will be installing an additional tape drive or replacing an existing tape drive.

6.4 Installing a 5.0 Gbyte 8 mm Tape Drive

Note - If you just removed 2.3 or 5.0 Gbyte 8 mm tape drive using the instructions in Section 6.5, "Removing a 2.3 or 5.0 Gbyte 8 mm Tape Drive," then skip to Step 4.

Follow these instructions to install a 5.0 Gbyte 8 mm tape drive in your SCSI Expansion Pedestal:

    1. Face the front of the SCSI drive tray and locate the set of mounting brackets where you will be installing the 5.0 Gbyte 8 mm tape drive.

    Figure 6-7 shows the location of the left and right set of mounting brackets at the front of the SCSI drive tray.

    Figure 6-7 Location of Front Mounting Brackets

    2. Use the 7 mm hex socket to remove the two M4 hex-head screws holding the mounting bracket nearest the outer edge of the SCSI drive tray.

    Remove that mounting bracket and put it to one side.

    3. Use the 7 mm hex socket to loosen the two M4 hex-head screws holding the mounting bracket nearest the center of the SCSI drive tray.

    Slide the mounting bracket out from under the screws and put it to one side. Do not remove these screws from the SCSI drive tray.

    4. Use the Phillips screwdriver to secure the two mounting brackets to the tape drive using the two 6-32 pan-head screws that were included with the drive (see Figure 6-8).

Note - When replacing the drive mounting screws, they must be reinstalled in the upper threaded locations to ensure proper thread engagement.

    Figure 6-8 Securing the Mounting Brackets to the Tape Drive

    5. Position the 5.0 Gbyte 8 mm tape drive in the SCSI drive tray, with the front of the drive facing the front of the tray.

    Gently slide the 5.0 Gbyte 8 mm tape drive towards the center of the SCSI drive tray until the two screws at the center of the tray are flush against the inside of the two holes at the bottom of the inner mounting bracket.

    6. Insert two M4 hex-head screws in the holes of the outer mounting bracket (see Figure 6-9).

    Figure 6-9 Installing a 5.0 Gbyte 8 mm Tape Drive in the SCSI Drive Tray

    7. Use the 7 mm hex socket to tighten all four M4 hex-head screws to secure the 5.0 Gbyte 8 mm tape drive to the drive tray.
    8. Plug the SCSI data cable into the SCSI connector at the rear of the tape drive (see Figure 6-10).

    Figure 6-10 Connector Locations on the 5.0 Gbyte 8 mm Tape Drive (Rear View)

    9. Plug the power harness cable into the power connector at the rear of the tape drive (see Figure 6-10).
    10. Go to Section 6.6, "Replacing the Assemblies and Powering On the Pedestal," to replace the tray and panels on the SCSI Expansion Pedestal.

6.5 Removing a 2.3 or 5.0 Gbyte 8 mm Tape Drive

Follow these instructions to remove an existing 2.3 or 5.0 Gbyte 8 mm tape drive from your SCSI Expansion Pedestal:

    1. Unplug the power cable from the power connector at the rear of the tape drive.

    Grasp the power cable connector on both sides and firmly, but gently, pull away from the power connector on the tape drive. Figure 6-11 shows the location of the power connector on the 2.3 Gbyte 8 mm tape drive, and Figure 6-12 shows the location of the power connector on the 5.0 Gbyte
    8 mm tape drive.

    Figure 6-11 SCSI and Power Connector Locations on the 2.3 Gbyte 8 mm Tape Drive

    Figure 6-12 SCSI and Power Connector Locations on the 5.0 Gbyte 8 mm Tape Drive

    2. Locate the SCSI connector at the rear of the tape drive.

    Figure 6-11 shows the location of the SCSI connector on the 2.3 Gbyte 8 mm tape drive, and Figure 6-12 shows the location of the SCSI connector on the 5.0 Gbyte 8 mm tape drive.

Note - If you are removing a 2.3 Gbyte 8 mm tape drive from your system, go to Step 4.

    3. Press out on the ejectors at the sides of the SCSI connector on the 5.0 Gbyte 8 mm tape drive to release the SCSI data cable from the drive (see Figure 6-13).

    Figure 6-13 Releasing the Ejectors

    4. Grasp the sides of the white plastic tab and slowly pull the SCSI data cable away from the tape drive (see Figure 6-14).

    Figure 6-14 Disconnecting the SCSI Data Cable

    5. Use the 7 mm hex socket to remove the two M4 hex-head screws holding the mounting bracket nearest the outer edge of the SCSI drive tray.

    Figure 6-15 shows the screws being removed from a tape drive installed in the front left position in the SCSI drive tray; the procedure is the same for a tape drive installed in the front right position in the tray.

    Figure 6-15 Removing the 2.3 or 5.0 Gbyte 8 mm Tape Drive from the SCSI Drive Tray

    6. Use the 7 mm hex socket to loosen the two M4 hex-head screws holding the mounting bracket nearest the center of the SCSI drive tray.

    Do not remove these screws from the SCSI drive tray.

    7. Gently slide the tape drive towards the outer edge of the SCSI drive tray until the tape drive is free from the inner two M4 hex-head screws and lift the tape drive away from the SCSI drive tray.
    8. Gently put the tape drive down on an anti-static bag.
    9. Use the Phillips screwdriver to remove the two 6-32 pan-head screws that hold the drive to each of the two mounting brackets (see Figure 6-16).

    Figure 6-16 Removing the Mounting Brackets from the Tape Drive

    10. Go to Section 6.4, "Installing a 5.0 Gbyte 8 mm Tape Drive," to install a new 5.0 Gbyte 8 mm tape drive in your system.

6.6 Replacing the Assemblies and Powering On the Pedestal

Complete the procedures in the following sections to replace the assemblies and power on your SCSI Expansion Pedestal.

6.6.1 Replacing the Top SCSI Drive Tray

Follow these instructions to replace the top SCSI drive tray in the SCSI Expansion Pedestal:

    1. Gently slide the top SCSI drive tray into the chassis (see Figure 6-17).

    Figure 6-17 Replacing the Top SCSI Drive Tray

    2. Connect the DC cable harness connectors to the DC connectors mounted in the front of the SCSI drive tray (see Figure 6-17).
    3. Use the 7 mm hex socket to secure the SCSI drive tray to the chassis using the four M4 hex-head screws (see Figure 6-17).

6.6.2 Replacing the EMI Front Cover Assembly

Follow these instructions to replace the EMI front cover assembly on the SCSI Expansion Pedestal:

    1. Slide the EMI front cover assembly down along the front of the SCSI Expansion Pedestal until the base of the EMI front cover assembly is resting in the slot at the base of the pedestal frame.
    2. Reach inside the EMI front cover and connect the cable that is connected to the LED/switch PCB assembly.
    3. Clip the cable using the strain relief, located on the EMI front cover assembly below the LED/switch PCB assembly.
    4. Use the formed handle on the EMI front cover to gently push the cover toward the SCSI Expansion Pedestal until the cover is pressed up against the top of the cabinet.
    5. Use the flat-head screwdriver to tighten the four captive screws on the EMI front cover (see Figure 6-18).

Note - The captive screws on the EMI front cover screw into the bottom and middle trays in the SCSI Expansion Pedestal, so you may not be able to use the captive screws if you don't have these trays installed in your pedestal.

    Figure 6-18 Replacing the EMI Front Cover Assembly

    6. Use the 7 mm hex socket to secure the front cover to the SCSI Expansion Pedestal using the six M4 hex-head screws (see Figure 6-18).

6.6.3 Replacing the Front Panel

Follow these instructions to replace the front panel on the SCSI Expansion Pedestal:

    1. Press the lower corners of the front panel against the pedestal until you hear and feel the lower ball studs snap into place.
    2. Press the middle sides of the front panel against the pedestal until you hear and feel the middle ball studs snap into place.
    3. Press the top corners of the front panel against the pedestal until you hear and feel the top ball studs snap into place.

6.6.4 Connecting the Data Cable

To connect the data cable to the SCSI tray port, face the rear of the SCSI Expansion Pedestal and connect the data cable from the back panel to the available SCSI tray port on the top tray (see Figure 6-19 for the location of the top SCSI tray ports). The remaining SCSI tray port should already have a terminator installed.

    Figure 6-19 Location of the Top SCSI Tray Ports

6.6.5 Powering On the System

Refer to the Sun SCSI Expansion Pedestal Installation Manual (P/N 800-7285-xx) for instructions on safely powering on the pedestal.

You may have to enter a specific software command when booting the system so that the system will recognize the new drive; refer to the software handbook for your operating system for more information. For example, if your system is running on the Solaris 2.x operating system, you would enter the following command to boot up the system so that it would recognize the new drive:

6.7 Taking Stock of Leftover Items

Once you have completed the procedure for installing the 5.0 Gbyte 8 mm tape drive in the SPARCcluster 1 system, you should have the following items remaining:

The mounting brackets were not needed for to install the 5.0 Gbyte 8 mm tape drive in the SCSI Expansion Pedestal, so you can discard the mounting brackets; the remaining items will be used when you operate the 5.0 Gbyte
8 mm tape drive.

6.8 Verifying Connection (Optional)

Follow these procedures if you want to verify that the 5.0 Gbyte 8 mm tape drive is correctly installed in the SCSI Expansion Pedestal. Refer to the section entitled "When You Need Help with UNIX Commands" in the Preface of this manual if you need references to help with the commands or system administration procedures given below.

    1. Notify users that the system is going down.
    2. Halt the system using the appropriate commands.
    3. Wait for the system-halted message and boot monitor prompt.

    Once you have halted your system, you will see several system messages.

    type "n" at the "" prompt and press <return:

    This will bring you to the "ok" prompt.

    4. Probe your system for SCSI devices.

    The command you enter to probe your system for SCSI devices will vary depending on which system you have your SCSI Expansion Pedestal tray(s) connected to:

    Figure 6-20 shows the location of the SBus slots in a SPARCserver 630MP or 670MP.

    Figure 6-20 Location of the SBus Slots on the SPARCserver 630MP or 670MP

    5. Verify that the 5.0 Gbyte 8 mm tape drive you just installed is listed.

    You should see a list of drives similar to the following:

    The "Target #" lines will tell you the SCSI addresses of the devices you have connected to your system.

    6. Enter the following command to reboot your system:

    Your screen will go blank for several seconds after you've entered this command, and then the system will reboot.