2 The 4mm Tape Drive in the SPARCserver 1000 System

Figure 2-1 The SPARCserver 1000 System

2.1 Preparing the System

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

2.1.1 Powering Off the System

First halt the operating system and power off the SPARCserver 1000 system.

Caution -

To shut down the system and give users a shutdown warning:

1. Back up the system files and data, if necessary.

2. Notify users that the system is going down.

3. Halt the system using the appropriate commands.

4. Wait for the system-halted message and the boot monitor prompt.

See the Solaris 2.x Handbook for SMCC Peripherals (P/N 801-4332-xx) or your software system documentation for specific software commands.

Caution -

5. Turn the key switch on the front panel of the server to the Standby position (fully counterclockwise).

See Figure 2-2.

Figure 2-2 Key Switch in the Standby Position

6. Turn off the AC power switch on the system back panel.

Refer to Figure 2-3.

Figure 2-3 AC Power Switch and Plug

2.1.2 Removing the Front Panel and the EMI Shield

The 5 Gbyte 4mm backup tape drive unit fits into the upper half of the backup device tray on the left side of the SPARCserver 1000 SCSI tray assembly. You can access the SCSI tray assembly by first removing the front panel and the electromagnetic interference (EMI) shield. The front panel rests in a groove cut on the top front edge of the chassis (See Figure 2-4 on page 2-5).

To remove the front panel:

1. Remove the key from the key switch.

See Figure 2-2 on page 2-3.

2. Push up on the latch located on the bottom center of the front panel.

Place your fingers under the arrow embossed on the front panel and push up to release the latch. Refer to Figure 2-4.

3. When the bottom of the panel is released, gently pull the bottom of the front panel toward you and lift it off the chassis. Set the panel aside.

Figure 2-4 Removing the Front Panel

To remove the EMI shield:

1. Loosen the six captive retaining screws securing the EMI shield to the chassis.

2. With your hands on the bottom of the EMI shield, pull the bottom toward you to disengage it from the chassis. Set the EMI shield aside.

Refer to Figure 2-5.

Figure 2-5 Removing the EMI Shield

2.1.3 Removing the SCSI Tray Assembly

The SCSI tray assembly mounts above the power supply in the front of the SPARCserver 1000 system, behind the front cover and the EMI shield (See Figure 2-6 on page 2-7). The backup device tray, on the left, contains a 5 1/4" device bracket holding the SunCD drive and either the optional 5 Gbyte 4mm backup tape drive or a half-height plastic filler panel. The SCSI disk drive tray, on the right, contains two or four half-height disk drives. The control board is mounted on top of the SCSI disk drive tray. The entire SCSI tray plugs directly into an internal backplane; there are no cables in the interconnect. Removal of the SCSI tray assembly involves releasing the retaining screws and pulling the entire tray out of the server chassis (See Figure 2-6).

To remove the SCSI tray assembly:

1. Loosen the four captive screws securing the SCSI tray assembly to the chassis.

Figure 2-6 Removing the SCSI Tray Assembly

2. Lift the ejector levers on each side of the SCSI tray assembly simultaneously until they point straight out; this action disengages the SCSI tray assembly from the backplane.

3. Slide the SCSI tray out of the chassis. Be very careful--the tray is heavy!

Grasp the tray firmly as soon as it slides out far enough to do so.

Caution -

2.1.4 Removing the 5 1/4" Device Bracket from the Backup Device Tray on the SCSI Tray Assembly

The 5 1/4" device bracket holds the SunCD drive and either the optional 5 Gbyte 4mm backup tape drive or a plastic filler panel. The bracket, SunCD, and tape drive or filler panel slip out of the backup device tray as a single unit. (See Figure 2-7).

Figure 2-7 SCSI Tray Assembly

To remove the 5 1/4" device bracket from the SCSI tray assembly:

1. Disconnect the power and SCSI cables from the rear of the SunCD unit (and from the 5 Gbyte 4mm backup tape drive, if present).

2. Remove the two M3 screws (at the rear of the backup device tray near the bottom, on either side of the 5 1/4" device bracket) that secure the device bracket to the SCSI tray assembly.

3. Slide the bracket with the SunCD and the tape drive or filler panel out of the device tray from the front.

See Figure 2-8.

Figure 2-8 Removing the 5 1/4" Device Bracket from the Backup Device Tray

2.1.5 Removing the Tape Drive or the Plastic Filler Panel from the 5 1/4" Device Bracket

1. To ease removal of the tape drive or filler panel from the device bracket, place the bracket on the top of the SPARCserver 1000 unit so that the front edge of the SunCD and tape drive hang slightly over the front edge of the server.

2. Remove the four 6-32x1/4" screws (two on each side) that secure the tape drive or filler panel to the bracket. Set the screws aside. You will use them to secure the new tape drive to the device bracket.

3. Lift the tape drive or filler panel out of the 5 1/4" device bracket from the top.

See Figure 2-6 on page 2-7.

If you are removing the original tape drive, set it on the ESD mat. Later, you will need to enclose it in the new tape drive's packaging in order to return it.

Figure 2-9 Removing the Tape Drive from the Device Bracket

2.2 Installing/Replacing the Tape Drive

2.2.1 Setting the SCSI Address

The SCSI tray accommodates up to six devices and the device controller, which identifies each device by a unique numerical address (the SCSI ID) between 0 and 7. The SCSI ID number for the 5 Gbyte 4mm backup tape drive is 5 (101 in binary).

Before inserting a new tape drive into the device bracket, set its SCSI address to 5 (101 in binary) using the DIP switches on the right side of the back of the drive.

1. With the tip of a ballpoint pen or other similarly shaped instrument, push switch 1 (the farthest on the right) down.

Refer to Figure 2-10.

2. Lift switch 2 (to the left of switch 1) up.

3. Push switch 3 (to the left of switch 2) down.

4. Do NOT change any other switches on the tape drive.

Figure 2-10 Device Addressing for the 5 Gbyte 4mm Backup Tape Drive

2.2.2 Inserting the Tape Drive into the SCSI Tray Assembly

Note - Since the tape drive's serial number is located on the bottom of the drive, you may wish to make a note of it before inserting the drive into the device bracket.

1. To ease insertion of the tape drive into the device bracket, place the bracket on the top of the SPARCserver 1000 unit so that the front edge of the bracket hangs slightly over the front edge of the server.

2. With the front of the bracket hanging slightly over the front edge of the server, slide the tape drive into the device bracket above the SunCD unit, making sure that the front surfaces of the two drives are even with each other.

See Figure 2-8 on page 2-9.

3. Install the four 6-32x1/4" screws to secure the tape drive to the bracket.

4. Slide the 5 1/4" device bracket (with tape drive installed) into the SCSI tray assembly, from the front. Insert and tighten the two M3 retaining screws.

Refer to Figure 2-7 on page 2-8.

5. Connect the SCSI cable at the rear of the tape drive and the SunCD, making sure to match tabs and notches.

The connections can be made more easily if you attach the cable connector nearest the terminator to the tape drive first.

6. Connect the power cable at the rear of the tape drive and the SunCD, making sure to match the angled edges.

2.3 Replacing the Assemblies

2.3.1 Replacing the SCSI Tray

1. Slide the SCSI tray into the chassis.

See Figure 2-6 on page 2-7.

Caution -

Caution -

2. When the tray is halfway in, extend the ejector levers toward you.

Refer to Figure 2-6 on page 2-7.

3. While holding the ejector levers up, slide the SCSI tray into the chassis until the ejector levers engage the metal on the chassis.

4. Seat the tray. Carefully push the levers down until they are vertical.

5. Using a flat-blade screwdriver, tighten the four captive retaining screws.

Note - Due to normal machine tolerances, it is best to thread all four screws in loosely (about 1-2 turns), then go around and tighten each screw.

2.3.2 Replacing the EMI Shield and the Front Panel.

To replace the EMI shield (Refer to Figure 2-5 on page 2-6):

1. Holding the sides of the EMI shield, align the top of the shield with the chassis, and press inward.

2. Tighten the six captive retaining screws securing the EMI shield to the chassis.

To replace the front panel (Refer to Figure 2-4 on page 2-5):

1. Rest the top of the front panel in the groove on the top front edge of the chassis.

2. Push down on the panel until the latch located on the bottom center of the front panel engages.

2.4 Restarting the System

Note - As the system starts up, watch for error messages from the POST diagnostic program. If a terminal is not already part of the system, locate a TTY terminal before continuing. See the SPARCserver 1000 System Service Manual.

1. Begin with a safety inspection of the system.

a. Put the key into the key switch on the front panel, making sure that it is in the Standby position.

Refer to Figure 2-2 on page 2-3.

b. Check that the AC power switch on the system back panel is off.

Refer to Figure 2-3 on page 2-4.

c. Verify that the power cord is plugged into the server and into a wall socket.

Caution -

2. Turn on the TTY terminal.

3. Turn on the AC power switch on the system back panel.

4. Turn the key switch to the On position.

See Figure 2-11 on page 2-15. You should see and hear several things happen:

• Fans begin turning.

• The left front panel LED (green) turns on immediately to indicate that the DC power supply is receiving current.

• The middle front panel LED (yellow) lights while POST runs for approximately 60 seconds. After 60 seconds, this LED turns off if the tests do not fail. If the LED remains lit after 60 seconds, a test has failed. Refer to the SPARCserver 1000 System Service Manual.

• The right front panel LED (green) lights to show that booting is successful and the operating system is running. If this LED does not turn on and the middle LED is on, a severe hardware fault exists. Refer to the SPARCserver 1000 System Service Manual.

Figure 2-11 Key Switch in the On Position

5. Watch the terminal screen for possible error messages from the POST diagnostic program.

POST tests subassemblies in the server and some interface paths between subassemblies. At the conclusion of testing, POST automatically attempts to reconfigure the system, omitting any parts of the system that have failed diagnostics. If there are no faults, or if POST completes a successful reconfiguration of the detected faults, the system boots.

2.5 Accessing the Reset Button

If you wish to run diagnostics again, or if the system hangs, you need to press the reset button behind the front panel. To access the reset button:

1. Remove the key from the key switch.

Figure 2-12 Location of the Reset Button

2. Remove the front panel.

See Figure 2-4 on page 2-5.

3. Insert the back of a pencil or other narrow object into the small opening in the center of the metal face plate and press the reset button.

Refer to Figure 2-12.

4. After the system has been reset, replace the front plastic panel.

Rest the top of the front panel in the grooved channel on the top panel. Push in on the lower portion of the front panel until it snaps back into place.

5. Return the key to the key switch.

Refer to the SPARCserver 1000 Storage Device User's Guide (P/N 801-2198-xx) or the 5 Gbyte 4mm Backup Tape Drive Server User's Guide (P/N 801-4624-xx) for directions on the use and care of the backup tape drive. See the Solaris 2.x Handbook for SMCC Peripherals (P/N 801-4332-xx) or the documentation that came with your operating system for the appropriate software commands to run the 5 Gbyte 4mm backup tape drive on your system.