Preparing the System for Service 1



This chapter provides the information necessary to prepare your system for servicing. Included are a tool list, safety precautions, system shutdown and trim removal and replacement procedures.

There are systems in the field that differ from the majority of production units in several minor details. When these differences affect the preparation procedures, this text covers both the standard and the variation.

Caution -

Servicing procedures, as directed in this manual, should be performed by qualified personnel only.

1.1 Tools and Test Equipment Required

The following list of tools represents the minimum requirement to service the cabinet:

1.2 System Requirements

Following are the system requirements necessary to run a 1.3 GB IPI tray or 1.3 GB IPI disk drive in your cabinet. If you do not have these options installed in your 56" Data Center Cabinet, you can order them through Sun Microsystems.

1.2.1 Hardware Requirements

You must have one or more ISP-80 disk controller boards with one of these dash numbers (the dash number is located on the back of the bar-code tag attached to the board ejector):

If the ISP-80 disk controller board(s) in your 56" Data Center Cabinet have one of these dash numbers:

then you must replace the EPROMs on the board(s) to use the 1.3 GB IPI disk drive. You can order the PROM Upgrade kit from the Price List for Customers (P/N X2085A). Follow the instructions given in the ISP-80 Controller PROM Upgrade manual (P/N 800-6089-xx) to upgrade the PROMs on your ISP-80 disk controller board.

If the ISP-80 disk controller board(s) in your 56" Data Center Cabinet have one of these dash numbers:

then contact your local Sun Sales Office for upgrade information.

1.2.2 Software Requirements

You must be running SunOS 4.1.1, Solaris 2.x, or another compatible operating system to run a 1.3 GB IPI tray or 1.3 GB IPI disk drive.

Note - The following workaround applies only if you are using a SunOS 4.x operating system.

A bug in 56" Data Center Cabinets boot PROMs earlier than 3.0 prevents MUNIX from booting the miniroot on the 1.3 GB IPI disk drive. There are two workarounds, depending on whether you are installing from tape or SunCD. Both begin when the screen shows the following: 

-----------------------------------------------

Mini-root installation complete.
What would you like to do?
	1 - reboot using the just-installed miniroot
	2 - exit into single user shell
Enter a 1 or 2:

-----------------------------------------------

1.2.2.1 Installing from Tape

The following steps will boot the miniroot and allow you to use SunInstall:

    1. Halt your system.

    Refer to the Solaris 1.x or Solaris 2.x Handbook for SMCC Peripherals.

    2. Enter the following bold commands at the prompts as shown below: 
------------------

>b st() <return'>

------------------

    Your system will boot the miniroot and allow you to use SunInstall.

1.2.2.2 Installing from SunCD

The following steps will boot the miniroot and allow you to use SunInstall:

    1. Halt your system.

    Refer to the Solaris 1.x or Solaris 2.x Handbook for SMCC Peripherals.

    2. Enter the following bold commands at the prompts as shown below (for SunOS 4.x operating system only): 
-------------------------------------------------------

>b sd(0,30,3) -asw <return'>
root filesystems type (4.2 nfs): 4.2 <return'>
root device (...........): id000b <return'>
root on id000b fstype 4.2
Boot: vmunix -asw <return'>
 .
 .
 .
root filesystems type (4.2 nfs): 4.2 <return'>
 [45 second pause]
root device (...........): id000b <return'>
swap filesystem type (spec 4.2 nfs): spec <return'>
swap device (...........): id000b <return'>
Swapping on root device, ok? y <return'>
 .
 .
 .

-------------------------------------------------------

Note - This is a sample display. The actual contents of your display may vary from the example given above, depending on the input and the system you are using.

1.3 Safety Precautions

Ensure that the voltage and frequency of the power outlet used matches the electrical rating labels on the cabinet and the video monitor.

Wear anti-static wrist straps when removing printed circuit boards (PCBs).

Only use properly-grounded power outlets as described in the Sun Site Preparation Guide for X90 Systems, P/N 800-5216.

Caution -

DO NOT make mechanical or electrical modifications to the cabinet. Sun Microsystems is not responsible for regulatory compliance of modified cabinets.

Caution -

- All power cords for components in the cabinet must be connected to the power sequencer. Additional power sequencers MAY NOT be added to the cabinet.

Caution -

Power off the cabinet and all equipment attached to it before proceeding with any of the procedures in the following chapters. The procedure for powering down the 56" Data Center Cabinet or the 56" Data Center Expansion Cabinet is described in Section 1.4, "Shutting Down the System."

Caution -

If you are removing a tray with four drives, you must remove the two rear drives before you can remove the tray. Follow the instructions given in Section 3.1, "Removing a 1.3 GB IPI Disk Drive," to do this.

1.4 Shutting Down the System

Before shutting off the power, you must halt the operating system.

    1. Go to the handbook that came with the disk drive.
      a. Refer to the section on shutting down the system.
      b. Perform the tasks specified.
      c. Return to this manual.
    2. Access the key switch by opening the top front panel of your cabinet.

    If you have a 56" Data Center Cabinet, pull on the left side of the top front panel on the cabinet to open the panel (see Figure 1-1).

    Figure 1-1 Opening the Top Panel on the 56" Data Center Cabinet

    If you have a 56" Data Center Expansion Cabinet, pull on both sides of the top front panel on the cabinet to remove the panel (see Figure 1-2).

    Figure 1-2 Removing the Top Panel from the 56" Expansion Cabinet

    3. Turn the key switch located at the top right-hand side to the vertical (OFF), position (see to Figure 1-3).

    Figure 1-3 System Power Keyswitch

    4. Move to the rear of the cabinet and turn the main power circuit breaker to the OFF position (see Figure 1-4).

    Figure 1-4 Control Panel

Caution -

Do not disconnect the power cords from the power sequencer in the cabinet or the cabinet's power cord from the wall socket. These connections provide the ground paths necessary to safely prevent any damage caused by electrostatic discharge to the drives or boards installed in the system.

For more information on system administration such as shut-down methods and backups, refer to System and Network Administration for the Sun Workstation,.

1.5 Removing the Panels

You must remove certain panels to install or replace a 1.3 GB IPI tray or disk drive in your cabinet:

Note - You may also remove the side panels to make the cabling of the trays easier, though it is possible to cable the trays without removing the side panels. You can find the instructions for removing these panels in Section 1.5.4, "Removing the Side Panels."

1.5.1 Removing the Vented Front Panels

To remove the vented front panel from your system, pull on both sides of the vented front panel until the panel disengages. Figure 1-2 shows how to remove a vented front panel from a 56" Data Center Expansion Cabinet; the procedure is the same for a 56" Data Center Cabinet.

1.5.2 Removing the Vented Rear Panel

Follow these steps to remove the vented rear panel:

    1. Move to the rear of the cabinet.
    2. Using a Phillips screwdriver, unscrew the two screws at the top of the rear panel.
    3. Pull the top of the panel away from the cabinet.
    4. Lift the rear panel until the bottom is clear and lift the panel away (see Figure 1-5).

    Set the panel aside.

    Figure 1-5 Removing the Vented Rear Panel and Kick Panel

1.5.3 Removing the Kick Panel

Follow these steps to remove the kick panel:

    1. Using the Phillips screwdriver, unscrew the two screws that secure the kick panel to the unit.
    2. Remove the kick panel and set it aside (see Figure 1-5).

1.5.4 Removing the Side Panels

Follow these steps to remove the side panels:

    1. Using the flat-blade screwdriver, unfasten the two captive screws at the bottom of the side panel (see Figure 1-6).

    Figure 1-6 Side Panel Removal and Replacement

    2. Firmly grasp the outer edges of the side panel with both hands and lift up on the panel to release the catches at the top.

    Set the panel aside.

1.6 Preparing the Tray for Service

Follow these procedures to prepare the tray for servicing:

    1. Extend the stabilizer bar from the cabinet bottom (see Figure 1-7).

    To extend the stabilizer bar, grasp the stabilizer bar underneath its front edge and pull the bar out to its fully-extended position.

    Figure 1-7 Stabilizer Bar

Caution -

The stabilizer bar at the base of the cabinet must be fully extended when installing or servicing IPI trays or the rack may tip over when a tray is pulled out.

    2. Move to the rear of the cabinet and disconnect the power cord and data cable(s) from the rear of the tray.

    Figure 1-8 shows the location of the power receptacle and data connectors for the tray.

    Figure 1-8 I.3 GB IPI Tray Power Receptacle and Data Connectors

1.7 What's Next

Refer to the appropriate chapter for the procedure you want to perform: