| Netra CT Server Service Manual |    
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| Netra CT Server Service Manual |
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| C H A P T E R 8 |
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Removing and Replacing Hot-Swappable Subassemblies |
This chapter contains procedures for the installation, removal, and replacement of hot-swappable Netra CT server subassemblies. This chapter contains the following topics:
Consult the Netra CT Server Safety and Compliance Manual for safety information prior to performing the procedures in this chapter.
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Caution - If you are powering on your Netra CT server, do notremove or install any components in the system until you verify that the system is completely powered up. See Section 2.2, Verifying Full Power-Upfor more information. |
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Note - Read Chapter 3 before performing the procedures in this chapter. |
This section describes how to remove and replace a system status panel. The instructions provided here apply to the removal and replacement of the system status panel in a Netra CT 810 server or a Netra CT 410 server.
1. Attach the antistatic wrist strap.
See Section 1.2, Attaching the Antistatic Wrist Strap.
2. Go to the front of the Netra CT server and locate the system status panel.
The locations of the system status panel in the Netra CT 810 server and Netra CT 410 server are illustrated in FIGURE 8-1.
3. Using a No. 2 Phillips screwdriver, loosen the two captive screws that hold the system status panel in place.
FIGURE 8-2 shows the location of the captive screws on the Netra CT 810 server, and FIGURE 8-3 shows the location of the captive screws on the Netra CT 410 server.
4. Pull the system status panel away from the Netra CT server, and place it on an electrostatic discharge mat.
You might have to pull on the screws to remove the system status panel from the server.
1. Attach the antistatic wrist strap.
See Section 1.2, Attaching the Antistatic Wrist Strap.
2. Carefully position the system status panel into place on the system.
FIGURE 8-4 shows how to position the panel into place on the Netra CT 810 server, and FIGURE 8-5 shows how to position the panel into place on the Netra CT 410 server.
3. Push the system status panel into place against the server, paying special attention to the connector on the left side of the panel, making sure that the connector on the left rear of the system status panel mates fully with the system controller board.
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Note - Be careful not to press the power switch when you are pressing the left side of the system status panel into place. |
4. Using a No. 2 Phillips screwdriver, tighten the two captive screws to secure the system status panel to the system.
FIGURE 8-2 shows the location of the captive screws on the Netra CT 810 server, and FIGURE 8-3 shows the location of the captive screws on the Netra CT 410 server.
This section describes how to remove and replace a system controller board. Each server has a single system controller board.
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Note - You must have the alarm card and host CPU board installed in the server before you can hot-swap the system controller board. |
1. Go to the front of the system and use the system status panel to determine if the system controller board failed.
FIGURE 8-6 shows the locations of the system controller board LEDs on the Netra CT 810 server, and FIGURE 8-7 shows the locations of the system controller board LEDs on the Netra CT 410 server.
2. Remove the system status panel as described in Section 8.1.1, Removing the System Status Panel.
Do not remove the antistatic wrist strap after you remove the system status panel.
3. Pull down on the ejection lever to unseat the system controller board (FIGURE 8-8).
4. Slide the board out, and place it on an electrostatic discharge mat.
1. Attach the antistatic wrist strap.
See Section 1.2, Attaching the Antistatic Wrist Strap.
2. Push the ejection lever all the way down.
3. Line up the system controller board with its slot using the upper and lower rails, making sure that the component side of the board faces the left of the server.
Insert the wide connector first, as shown in FIGURE 8-9.
4. Slide the board into the slot (FIGURE 8-9).
5. Flip the ejection lever up as you slide the board into the slot to completely seat it in the board cage.
The notch on the ejection lever should fit into the cutout.
When the board is completely seated, a brief flash of light displays behind the board.
6. Replace the system status panel, as described in Section 8.1.2, Replacing the System Status Panel.
Both the Netra CT 810 servers and the Netra CT 410 servers have two types of air filters: a power supply unit air filter, which filters the air going into the power supply, and a main air filter, which filters the air going into the server. Both air filters are located in the power supply unit. The power supply unit air filter is located at the front of the power supply unit, and the main air filter is located in a tray at the top of the power supply unit.
Both sets of air filters should be replaced every three to six months. If your server environment is especially dirty, you might need to replace them more frequently. The power supply unit air filter must be in place for safe operation. Note that you do not have to power off the power supply unit or the system when removing or installing any of the air filters.
There is a single part number for the kit that contains both the main air filter and the power supply unit air filter for the Netra CT servers.
1. Squeeze in on the tabs at the sides of the power supply unit cover, and remove the cover.
FIGURE 8-10 shows the location of the power supply unit cover for the Netra CT 810 server, and FIGURE 8-11 shows the location of the power supply unit cover for the Netra CT 410 server.
2. Remove the power supply unit air filter.
See FIGURE 8-10 and FIGURE 8-11.
3. Slide the main air filter tray out of the power supply unit.
See FIGURE 8-10 and FIGURE 8-11.
4. Remove the main air filter from the tray.
1. Insert the main air filter in the air filter tray.
See FIGURE 8-10 and FIGURE 8-11.
2. Slide the air filter tray into the power supply unit.
3. Insert the power supply unit air filter into the power supply unit cover.
4. Replace the power supply unit cover on the power supply unit until it clicks into place.
The second power supply unit in a Netra CT 810 server is hot-swappable, as described in Section 1.3, FRU Categories. The remaining power supply unit in a Netra CT 810 server and the lone power supply unit in a Netra CT 410 server are cold-swappable. If you are replacing a hot-swappable power supply unit, then follow the instructions in this section; if you are replacing a cold-swappable power supply unit, then go to Section 10.2, Cold-Swappable Power Supply Unit.
Note that your Netra CT 810 server continues to operate normally with only one power supply unit; however, you do not have complete redundancy for the power supplies until you replace the failed power supply unit.
The newest part number for the power supply unit is F300-1767. Older power supply units with part numbers F300-1535 can be used.
1. Attach the antistatic wrist strap.
See Section 1.2, Attaching the Antistatic Wrist Strap.
2. Determine the state of the power supply unit that you want to remove.
You might have to get troubleshooting information from the LEDs on the power supply unit to determine the state. See Section 4.6, Troubleshooting a Power Supply Using the Power Supply Unit LEDs for information.
3. Verify that the power supply unit that you want to remove is hot-swappable.
Use the power supply unit (PSU) LEDs on the system status panel to locate the power supply unit that can be removed. FIGURE 8-12 shows the location of the power supply unit LEDs on the Netra CT 810 server system status panel.
In a redundant system, a power supply unit is hot-swappable and can be removed if the amber Okay to Remove LED (
) on the system status panelis ON.
4. Push the purple locking mechanism up into the unlocked (
) position.
FIGURE 8-13shows the location of the locking mechanism for a power supply unit in a Netra CT 810 server. The two LEDs on the power supply unit should go off. In addition, after several seconds, the amber Okay to Remove LED (
) on the system status panel for the remaining power supply unit in the Netra CT 810 server should go to OFF. This state tells you that the remaining power supply unit is no longer hot-swappable as long as you have the first power supply unit disabled.
5. Using a No. 2 Phillips screwdriver, loosen the two silver captive screws at the base of the power supply unit.
FIGURE 8-13 shows the location of the captive screws for a power supply unit on a Netra CT 810 server.
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Note - Do not loosen the black captive screws at the base of the system; those screws hold the server in place. |
6. Grasp the handle on the power supply unit, slide it out of the server, and place it on an electrostatic discharge mat.
1. Attach the antistatic wrist strap.
See Section 1.2, Attaching the Antistatic Wrist Strap.
2. Slide the power supply unit into the slot.
3. Using a No. 2 Phillips screwdriver, tighten the two silver captive screws beneath the power supply unit to secure the power supply unit to the server.
FIGURE 8-13 shows the location of the captive screws for the power supply unit on a Netra CT 810 server.
4. Push the locking mechanism down into the locked (
) position.
FIGURE 8-13 shows the location of the locking mechanisms for the power supply unit on a Netra CT 810 server.
5. Verify that the power supply unit you just installed is functioning properly.
FIGURE 8-12 shows the location of the power supply unit (PSU) LEDs on the system status panel on the Netra CT 810 server.
The amber LEDs (
) on the system status panel for both power supply units in the Netra CT 810 server should go ON. This state tells you that you have two functioning, redundant power supply units in the server, and either of them is now hot-swappable.
This section describes you how to remove and replace a fan tray in both the Netra CT 810 server and the Netra CT 410 server.
Depending upon which host board you have, when the temperature rises above a certain level, the CPU board sends out a warning that the system is overheating. If the temperature rises too high, then the system shuts down automatically. Note that these temperatures are not ambient air temperatures, but rather the CPU temperatures that are monitored by a thermistor located under the heatsink on the host CPU board.
The following temperatures apply to the Netra CP2140 board:
The following temperatures apply to the Netra CP2500 board:
If one fan tray fails, you must replace the failed fan tray as soon as possible. Even though the system can run on one fan tray, if the temperature rises too high, a single fan tray might not be able to cool the system properly.
High-speed fan trays designed especially for the Netra CP2500 board are required when you install a Netra CP2500 board in a Netra CT 810 server or a Netra CT 410 server.
1. Go to the front of the system, then use the system status panel to determine if a fan tray has failed.
FIGURE 8-15 shows the locations of the fan tray LEDs on the Netra CT 810 server, and FIGURE 8-16 shows the locations of the fan tray LEDs on the Netra CT 410 server.
A fan tray has failed if the amber Fault LED (
) on the system status panel is ON.
2. Make a note of which fan tray has failed.
You must remove the system status panel to access the fan trays.
3. Remove the system status panel from the system.
See Section 8.1.1, Removing the System Status Panel for those instructions.
4. Locate the fan tray that failed.
FIGURE 8-17 shows the locations of the fan trays in a Netra CT 810 server, and FIGURE 8-18 shows the locations of the fan trays in a Netra CT 410 server.
5. Remove the failed fan tray from the system.
1. Insert the fan tray into the system:
2. Install the system status panel on the system.
See Section 8.1.2, Replacing the System Status Panel for those instructions.
3. Verify that the fan tray LEDs are lit properly.
FIGURE 8-15 shows the locations of the fan tray LEDs on the Netra CT 810 server, and FIGURE 8-16 shows the locations of the fan tray LEDs on the Netra CT 410 server.
A fan tray is functioning properly if the amber Fault LED (
) on the system status panel is OFF, and the green Power LED (
) is ON.
| Netra CT Server Service Manual | 819-2741-10 |
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Copyright © 2007, Sun Microsystems, Inc. All Rights Reserved.
) on the system status panel is OFF; that means that the power supply unit is nothot-swappable, and your server power would turn off if you removed it.