C H A P T E R  2

Preparing to Service the System

This chapter describes how to prepare the Sun Fire X4450 server for servicing.

The following topics are covered:

2.1 Safety Information

This section provides important safety information that you need to know prior to removing or installing parts in the Sun Fire X4450 server.

caution icon Caution - Never attempt to run the server with the covers removed. Hazardous voltage may be present.

caution icon Caution - Equipment damage is possible. The covers must be in place for proper air flow.

For your protection, observe the following safety precautions when setting up your equipment:

2.2 Required Tools

The Sun Fire X4450 server can be serviced with the following tools:

2.3 Obtaining the Chassis Serial Number

To obtain support for your server, you need your chassis serial number. The chassis serial number is located on a sticker on the front of the server, and another sticker is located on the top of the server.

Note - You might be asked for your hardware serial number if you need service for your system. To find the serial number of your system, use the ILOM command get /SYS or see your Installation Guide or Service Manual.

FIGURE 2-1 Chassis Serial Number Label

2.4 Powering Off the Server

To remove main power from the server, use one of the methods shown in the following table.

TABLE 2-1 Shutdown Procedures



Graceful shutdown

Use a pen, or other non-conducting pointed object, to press and release the Power button on the front panel. Pressing the power button causes Advanced Configuration and Power Interface (ACPI)-enabled operating systems to perform an orderly shutdown of the operating system. Servers not running ACPI-enabled operating systems will shut down to standby power mode immediately.

Emergency shutdown

Press and hold the Power button for at least four seconds until the main power is off and the server enters standby power mode.

When the main power is off, the Power/OK LED on the front panel flashes, indicating that the server is in standby power mode. See FIGURE 2-2.


CAUTION: All applications and files will be closed abruptly without saving changes. File system corruption might occur.


See Section 2.4.1, Powering Off the Server Using the Service Processor Command Line.

caution icon Caution - To completely power off the server, you must disconnect the AC power cords from the back panel of the server.

FIGURE 2-2 Front Panel Power/OK LED

Figure showing how to power on the server.

2.4.1 Powering Off the Server Using the Service Processor Command Line

You can use the service processor to perform a graceful shutdown of the server and ensure that all of your data is saved and the server is ready for restart.

Refer to the operating system documentation for additional information.

1. Log in as a superuser or equivalent.

Depending on the type of problem, you might want to view server status or log files, or run diagnostics before you shut down the server.

2. Notify affected users.

3. Save any open files and quit all running programs.

Refer to your application documentation for specific information.

4. Shut down all logical domains.

5. Shut down the Operating System.

6. Open an SSH session.

7. Log into the Service Processor.

8. Type:

stop /SYS


cd /SP/CtrlInfo

set powerctrl=off

2.5 Extending the Server to the Maintenance Position

The following components can be serviced with the server in the maintenance position:

If the server is installed in a rack with extendable slide rails, use this procedure to extend the server to the maintenance position.

1. (Optional) Type the following command from the service processor (SP) prompt -> to locate the system that requires maintenance.


-> set /SYS/LOCATE status=on

Locator indicator is on.



-> set /SYS/LOCATE value=on

Locator indicator is on.

After you have located the server, press the Locator LED/Locator button to turn it off.

2. Verify that no cables will be damaged or will interfere when the server is extended.

Although the cable management arm (CMA) that is supplied with the server is hinged to accommodate extending the server, you should ensure that all cables and cords are capable of extending.

3. From the front of the server, release the two slide release latches (FIGURE 2-3).

Squeeze the green slide release latches to release the slide rails.

FIGURE 2-3 Slide Release Latches

Figure showing the location of slide release latches.

4. While squeezing the slide release latches, slowly pull the server forward until the slide rails latch.

2.6 Removing the Server From the Rack

The server must be removed from the rack to service the following components:

caution icon Caution - If necessary, use two people to dismount and carry the chassis.


To remove a server from the rack:

1. Disconnect all the cables and power cords from the server.

2. Extend the server to the maintenance position.

See Section 2.5, Extending the Server to the Maintenance Position.

3. Press the metal lever that is located on the inner side of the rail to disconnect the cable management arm (CMA) from the rail assembly (FIGURE 2-3).

The CMA is still attached to the cabinet, but the server chassis is now disconnected from the CMA.

FIGURE 2-4 Metal Lever and Cable Management Arm

Figure showing how to locate the metal lever.

caution icon Caution - If necessary, use two people to dismount and carry the chassis.


4. From the front of the server, pull the release tabs forward and pull the server forward until it is free of the rack rails (FIGURE 2-5).

A release tab is located on each rail.

FIGURE 2-5 Release Tabs and Slide Assembly

Figure showing location of Release Tabs in Slide Assembly.

5. Set the server on a sturdy work surface.

2.7 Performing Electrostatic Discharge and Antistatic Prevention Measures

2.7.1 Electrostatic Discharge Safety Measures

Electrostatic discharge (ESD) sensitive devices, such as the motherboards, PCI cards, drives, and memory cards, require special handling.

caution icon Caution - Circuit boards and drives contain electronic components that are extremely sensitive to static electricity. Ordinary amounts of static electricity from clothing or the work environment can destroy the components located on these boards. Do not touch the components along their connector edges.

caution icon Caution - You must disconnect both power supplies before servicing any of the components documented in this chapter. Using an Antistatic Wrist Strap

Wear an antistatic wrist strap and use an antistatic mat when handling components such as drive assemblies, circuit boards, or PCI cards. When servicing or removing server components, attach an antistatic strap to your wrist and then to a metal area on the chassis. Following this practice equalizes the electrical potentials between you and the server.

Note - An antistatic wrist strap is not included in the accessory kit for the Sun Fire X4450 Server. However, antistatic wrist straps are still included with options. Using an Antistatic Mat

Place ESD-sensitive components such as motherboards, memory, and other PCBs on an antistatic mat.

2.7.2 ESD Handling Procedure

1. Prepare an antistatic surface to set parts on during the removal, installation, or replacement process.

Place ESD-sensitive components such as the printed circuit boards on an antistatic mat. The following items can be used as an antistatic mat:

2. Attach an antistatic wrist strap.

When servicing or removing server components, attach an antistatic strap to your wrist and then to a metal area on the chassis.

2.8 Removing the Top Cover

The top cover and fan door are integrated.

Note - Some field-replaceable units (FRUs) require removal of the rear cover.

1. Unlatch the fan module door. [1]

Pull the two release tabs back to release the door. Rotate the fan door to the open position and hold it there.

2. Press the top cover release button and slide the top cover to the rear about a half-inch (12.7 mm). [2]

3. Lift up and remove the top cover. [3]

caution icon Caution - If the top cover is removed before the server is powered off, the server will immediately go into Standby mode.

FIGURE 2-6 Removing the Top Cover

Figure showing how to remove the top cover: open fan door and slide top panel back.