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Contents
Prefacevii
1.Sun Datacenter Switch 3456 Overview1–1
1.1Switch Chassis1–1
1.2Power Supplies1–2
1.3Fan Units1–3
1.4Chassis Management Controllers1–4
1.5Fabric Cards1–5
1.6Line Cards1–6
2.Chassis Service Procedures2–1
2.1Filler Panels2–1
▼Removing the Filler Panel1
▼Installing the Filler Panel3
2.2Midplane Connector Pins2–6
2.2.1Tools2–6
▼Inspecting the Pins on the Rear Side of the Midplane7
▼Inspecting the Pins on the Front Side of the Midplane10
▼Removing Pins13
▼Removing a Pin With Needle-Nose Pliers14
iii
▼Inserting Pins15
2.3Cable Management Hardware2–16
▼Removing Cable Plates16
▼Installing Cable Plates16
▼Removing Cable Trees17
▼Installing Cable Trees18
▼Removing Cable Trays20
▼Installing Cable Trays20
2.4InfiniBand Cables2–21
2.4.1Cable Cautions2–21
▼Removing Cables From the Sun Datacenter Switch 345622
▼Attaching Cables to the Sun Datacenter Switch 345623
3.Power Supply Service Procedures3–1
3.1Troubleshooting Power Supplies3–2
3.2Powering Off Power Supplies3–2
3.3Removing Power Supplies3–3
▼Removing a Power Supply3
3.4Installing Power Supplies3–5
▼Installing a Power Supply5
3.5Powering On Power Supplies3–7
4.Fan Service Procedures4–1
4.1Troubleshooting Fans4–1
4.2Removing Fans4–1
▼Removing a Fan1
4.3Installing Fans4–2
▼Installing a Fan3
5.Chassis Management Controller Service Procedures5–1
ivSun Datacenter Switch 3456 Service Manual • August 2008
5.1Troubleshooting CMCs5–2
5.2Powering Off CMCs5–2
5.3Removing CMCs5–3
▼Removing a CMC3
5.4Installing CMCs5–4
▼Installing a CMC4
5.5Powering On CMCs5–6
6.Fabric Card Service Procedures6–1
6.1Fabric Card Considerations6–1
6.2Troubleshooting Fabric Cards6–2
6.3Inspecting Fabric Cards6–3
▼Inspecting the Fabric Card iTRAC Connectors3
▼Inspecting the Fans5
▼Inspecting the Retainers5
6.4Powering Off Fabric Cards6–6
6.5Removing Fabric Cards6–7
▼Removing a Fabric Card7
6.6Installing Fabric Cards6–8
▼Installing a Fabric Card8
6.7Powering On Fabric Cards6–10
7.Line Card Service Procedures7–1
7.1Line Card Considerations7–1
7.2Troubleshooting Line Cards7–2
7.3Inspecting Line Cards7–3
▼Inspecting the Line Card iTRAC Connectors3
▼Inspecting the Line Card iPASS Connectors5
▼Inspecting the Retainers5
Contentsv
7.4Powering Off Line Cards7–6
7.5Removing Line Cards7–7
▼Removing a Line Card7
7.6Installing Line Cards7–12
▼Installing a Line Card12
7.7Powering On Line Cards7–15
IndexIndex–1
viSun Datacenter Switch 3456 Service Manual • August 2008
Preface
This service manual provides service procedures for the Sun Datacenter Switch 3456.
This document is written for service personnel and users who have advanced
knowledge and experience managing an InfiniBand network.
Using UNIX Commands
This document might not contain information about basic UNIX®commands and
procedures such as shutting down the system, booting the system, and configuring
devices. Refer to the following for this information:
■ Software documentation that you received with your system
■ Solaris™ Operating System documentation, which is at:
http://docs.sun.com
vii
Shell Prompts
ShellPrompt
C shellmachine-name%
C shell superusermachine-name#
Bourne shell and Korn shell$
Bourne shell and Korn shell superuser#
Typographic Conventions
*
Typeface
AaBbCc123The names of commands, files,
AaBbCc123What you type, when contrasted
AaBbCc123Book titles, new words or terms,
* The settings on your browser might differ from these settings.
MeaningExamples
Edit your.login file.
and directories; on-screen
computer output
with on-screen computer output
words to be emphasized.
Replace command-line variables
with real names or values.
Use ls -a to list all files.
% You have mail.
% su
Password:
Read Chapter 6 in the User’s Guide.
These are called class options.
Yo u must be superuser to do this.
To delete a file, type rm filename.
Related Documentation
The documents listed as online are available at:
viiiSun Datacenter Switch 3456 Service Manual • August 2008
5. Repeat from Step 1 for any remaining vacant slots.
2.2Midplane Connector Pins
Caution – All midplane connector pin operations require the Sun Datacenter Switch
3456 to be fully powered off.
2.2.1Tools
For inspecting pins, you need the following tools:
■ Pin gauge block
■ Bright flashlight
■ Magnifying glass or loupe
■ Notepad and pen
Chapter 2 Chassis Service Procedures2-5
To repair or replace a pin, you need the following tools:
■ Molex pin replacement tool
■ Replacement pins (extracted from a spare iTRAC connector)
■ Head-mounted magnifier
■ Flashlight
Note – Another person to assist you can make the task much easier.
▼ Inspecting the Pins on the Rear Side of the
Midplane
Note – This procedure assumes that a fabric card has been removed from the
chassis.
The primary tool used to check the midplane pins is the pin gauge block. This tool
effortlessly slides over the straight pins of an iTRAC connector that is in good
condition. If there is any resistance, a pin is bent and requires further examination.
1. Using the pin gauge block, gently insert it into the iTRAC connector at the
upper end of the open slot.
2. If you feel any resistance to insertion, note the connector number on the
notepad.
See
FIGURE 2-6.
2-6Sun Datacenter Switch 3456 Service Manual • August 2008
FIGURE 2-6 Fabric Card Connector Nomenclature
The connector number is located above each connector and is unique. For
example, the upper-left connector number is FC-R23-F0. The lower-right
connector number is FC-R0-F17. The connector number is decoded as follows:
■ FC – Fabric card
■ Ra – Row a, where a is 0 through 23
■ Fb – Frame b, where b is 0 through 17
The origin of this coordinate system is the lower-left corner, FC-R0-F0. In
FIGURE 2-6, the connector identified is FC-R13-F15.
3. Continue down to the next connector and repeat from Step 1.
4. After you have checked the bottom connector, visually inspect any connectors
you noted previously.
Chapter 2 Chassis Service Procedures2-7
5. Using the magnifying glass and the flashlight positioned above you, look at the
individual pins of the connector.
Look at the pins straight on. See
FIGURE 2-7 Inspecting the Pins (Fabric Card)
FIGURE 2-7.
6. Look for any light reflection inconsistencies.
A bent pin reflects light differently, either brighter or darker than the surrounding
pins.
Note – Do not look at the individual pins, rather look at all of the connector’s pins
as a whole. A bent pin will be apparent.
7. Identify the pin that needs repair or replacement and note this.
8. Look for any contaminants that might be present.
These contaminants might appear as light dots near the pins.
9. Move your head to the next suspect connector and inspect its pins, repeating
Step 5 through Step 8.
10. Continue in this manner for all suspect connectors.
11. If a pin needs repair or replacement, see “Removing Pins” on page 2-13.
2-8Sun Datacenter Switch 3456 Service Manual • August 2008
▼ Inspecting the Pins on the Front Side of the
Midplane
Note – This procedure assumes that a line card has been removed from the chassis.
The primary tool used to check the midplane pins is the pin gauge block. This tool
effortlessly slides over the straight pins of an iTRAC connector that is in good
condition. If there is any resistance, a pin is bent and requires further examination.
1. Using the pin gauge block, gently insert it into the iTRAC connector at the left
end of the open slot.
2. If you feel any resistance to insertion, note the connector number on the
notepad.
See
FIGURE 2-8.
Chapter 2 Chassis Service Procedures2-9
FIGURE 2-8 Line Card Connector Nomenclature
The connector number is located above each connector and is unique. For
example, the lower-left connector number is LC-C17-L0. The upper-right
connector number is LC-C0-L23. The connector number is decoded as follows:
■ LC – Line card
■ Cc – Column c, where c is 0 through 17
■ Ld – Level d, where d is 0 through 23
The origin of this coordinate system is the lower right corner, LC-C0-L0. In
FIGURE 2-8, the connector identified is LC-C14-L10.
3. Continue right to the next connector and repeat from Step 1.
4. After you have checked the far right connector, visually inspect any connectors
you noted previously.
2-10Sun Datacenter Switch 3456 Service Manual • August 2008
5. Using the magnifying glass and the flashlight positioned to the side of you,
look at the individual pins of the connector.
Look at the pins as straight on. See
FIGURE 2-9 Inspecting the Pins (Line Card)
FIGURE 2-9.
6. Look for any light reflection inconsistencies.
A bent pin reflects light differently, either brighter or darker than the surrounding
pins.
Note – Do not look at the individual pins, rather look at all of the connector’s pins
as a whole. A bent pin will be apparent.
7. Identify the pin that needs repair or replacement and note this.
8. Look for any contaminants that might be present.
These contaminants might appear as light dots near the pins.
9. Move your head to the next suspect connector and inspect its pins, repeating
Step 5 through Step 8.
10. Continue in this manner for all suspect connectors.
11. If a pin needs repair or replacement, see “Removing Pins” on page 2-13.
Chapter 2 Chassis Service Procedures2-11
▼ Removing Pins
Before you can attempt to straighten a bent pin, you must remove the pins
surrounding the bent pin. See
1. Locate the bent pin.
See
FIGURE 2-10.
FIGURE 2-10 Locating the Bent Pin and Surrounding Pins
FIGURE 2-10.
2. Use the Molex tool to remove the pin (if any) above the bent pin.
a. Slide the Molex tool completely over the pin.
b. Activate the lock to grasp the pin.
c. Press the trigger to pull the pin out.
d. Push the ejector back in to release the pin and reset the tool.
3. Set the pin aside.
4. Use the Molex tool repeating Step 2 to remove the pin (if any) below the bent
pin.
5. Set the pin aside.
2-12Sun Datacenter Switch 3456 Service Manual • August 2008
6. Repeat Step 2 to remove the pins to the left and right sides of the bent pin (if
any).
7. Set these pins aside.
The bent pin is now exposed.
8. Flip the Molex tool over and use the tube in attempt to straighten the pin.
If the pin cannot be straightened satisfactorily, or might break if straightened,
replace it.
9. Remove the pin following Step 2.
10. If the pin is too bent for the Molex tool, see “Removing a Pin With Needle-Nose
Pliers” on page 2-14.
▼ Removing a Pin With Needle-Nose Pliers
Perform this procedure only when the Molex tool is incapable of removing the pin.
You need micro-tipped needle-nose pliers.
1. With one hand, grasp the pin with the very tip of the needle-nose pliers.
2. Squeeze the pliers sufficiently to grip the pin for extraction.
3. With the other hand, steady the pliers in a position for perpendicular
extraction.
See
FIGURE 2-11.
Chapter 2 Chassis Service Procedures2-13
FIGURE 2-11 Using Pliers to Pull a Pin
4. In one motion, use both hands to pull the pin out of the connector.
5. Dispose of the pin.
▼ Inserting Pins
When inserting pins, work from the top down. Repeat Step 1 through Step 5 for each
pin that needs to be inserted.
1. Ready the Molex tool for a pin insertion.
a. Press the trigger on the Molex tool to release the ejector.
b. Slide a pin into the opening.
A portion of the pin protrudes.
c. Activate the lock to grasp the pin.
2. Position the Molex tool over the hole in the connector where you want to insert
the pin.
3. Holding the Molex tool perpendicular to the plane of the connector, insert the
pin into the connector.
2-14Sun Datacenter Switch 3456 Service Manual • August 2008
4. Slowly press the ejector in until it stops.
The pin is inserted.
5. Carefully deactivate the lock and withdraw the Molex tool from the connector.
2.3Cable Management Hardware
▼ Removing Cable Plates
1. Remove the cables from the cable plates.
See “Removing Cables From the Sun Datacenter Switch 3456” on page 2-22.
2. Starting on the right side of the Sun Datacenter Switch 3456 chassis, remove the
cable plates.
a. Using an Allen wrench, remove the four M5 x 1.5 screws that secure the
upper cable plate.
b. Remove the cable plate from the chassis.
c. Repeat from Step a for the next lower cable plate and continue until all six
cable plates are removed.
3. Repeat Step 2 for the left side of the switch.
▼ Installing Cable Plates
1. Starting on the right side of the Sun Datacenter Switch 3456 chassis, install the
cable plates.
a. Using an Allen wrench, attach the lowest plate with four M5x1.5 screws.
The support rib for the plate is on the underside. See
Chapter 2 Chassis Service Procedures2-15
FIGURE 2-12.
FIGURE 2-12 Cable Plate Locations
Note – The support rib for the plate is on the underside and visible from the front
of the switch chassis. From the back of the switch, the plates appear smooth.
b. Tighten the screws securely.
c. Repeat from Step a for the next higher cable plate and continue until all six
cable plates are installed.
2. Repeat Step 1 for the left side of the switch.
▼ Removing Cable Trees
Note – Two people are required to remove the cable trees. One person must hold
the weight of the tree for an extended time.
1. Remove all cables from the line cards.
See “Removing Cables From the Sun Datacenter Switch 3456” on page 2-22.
2-16Sun Datacenter Switch 3456 Service Manual • August 2008
2. Start on the front right corner of the Sun Datacenter Switch 3456 chassis.
a. Remove all screws from the front of the cable tree.
b. Remove all but the upper two screws from the right side of the cable tree.
c. While a helper lifts the weight of the cable tree, remove the two remaining
screws from the right of the cable tree.
d. Lift the cable tree away from the chassis.
3. Repeat Step 2 for the cable tree on the front left corner of the switch chassis.
▼ Installing Cable Trees
Note – Two people are required to install the cable trees. One person must hold the
weight of the tree for an extended time.
1. Identify the cable trees.
The cable trees are symmetrical and their orientation for installation can be
difficult to determine. When properly installed, the fluted branches of the tree
point forward, with the fluting on the underside of the branches. The top surface
of all branches is smooth. See
FIGURE 2-13.
Chapter 2 Chassis Service Procedures2-17
FIGURE 2-13 Cable Tree Placement
2. Set the cable trees upright at their respective corners of the switch chassis.
3. Starting on the front right corner of the chassis, lift the cable tree into position.
Have a helper assist in aligning the cable tree mounting screw holes with those in
the chassis.
4. While holding the cable tree in position, have a helper install the mounting
screws.
a. Using a Allen wrench, install the first M5x1.5 screw into the top hole on the
right side of the chassis.
Finger tighten the screw only.
b. Install the second screw into the next lower hole.
Finger tighten the screw only.
c. Repeat from Step a until all 11 screws are installed on the right side.
5. Repeat Step 4 for the 11 screws on the front of the right cable tree.
6. Press the cable tree into the switch chassis and firmly tighten all 22 screws from
top to bottom.
7. Repeat from Step 3 for the other cable tree at the front left corner of the chassis.
2-18Sun Datacenter Switch 3456 Service Manual • August 2008
▼ Removing Cable Trays
1. Remove the cables from the line card where the cable tray is to be removed.
See “Removing Cables From the Sun Datacenter Switch 3456” on page 2-22.
2. Lift on the front of the cable tray and begin to pull out.
Note – Once the tray is free of the guides at the back end, it no longer has support
and will fall. Anticipate this behavior.
3. Support the back end of the cable tray, and continue to pull the tray out and
away from the cable trees.
▼ Installing Cable Trays
1. Lift the cable tray into a horizontal orientation, with the rolled edge towards
you and the lip on the underside.
2. Locate where you want to install the cable tray.
3. Move the cable tray between and just above the branches of the cable tree for
the slot where you want to install the tray.
Slide the far end of the tray into the guides.
4. Continue to press the tray into the guides until it stops, then lower the front of
the tray onto the flanges.
See
FIGURE 2-14.
Chapter 2 Chassis Service Procedures2-19
FIGURE 2-14 Installing Cable Trays
Note – Install cable trays only as they are needed. If all cable trays are installed
before the switch is cabled, their presence make cabling extremely difficult.
2.4InfiniBand Cables
2.4.1Cable Cautions
Caution – Do not allow any IB cable to bend through a less than 5 inch (127 mm)
radius. Tight bends can break the cable internally.
Caution – Do not use zip ties to bundle or support IB cables. The sharp edges of the
ties can break the cables internally.
2-20Sun Datacenter Switch 3456 Service Manual • August 2008
Caution – Do not allow any IB cable to experience extreme tension. Do not pull on
an IB cable or allow it to drag. Unroll an IB cable for its length. Pulling on an IB
cable can break the cables internally.
Caution – Do not twist an IB cable more than 1 revolution for its entire length.
Twisting an IB cable can break the cable internally.
Caution – Do not route IB cables where they might be stepped upon or experience
rolling loads. Such a crushing effect can break the cable internally.
▼ Removing Cables From the Sun Datacenter
Switch 3456
This procedure describes how to remove the cables from one line card, so that line
card can be replaced. If you are removing cables for several line cards or all line
cards, work from the upper line card down. This way, you have more working space
as your task progresses.
If you are removing a cable from the switch to replace that cable, consider the
following:
■ If you are removing a cable from connectors 0A through 11B, start the procedure
at Step 8.
■ If you are removing a cable from connectors 12A through 23B, start the procedure
at Step 1.
1. Locate the connector at 12B.
This is the upper cable.
2. Grasp the cable connector to support its weight and apply the removal force.
3. Pull on the loop of the retractor strap while simultaneously pulling on the
cable connector.
The cable connector comes free.
4. Carefully move the cable out of the front branch of the cable tree.
5. Consider your next step:
■ If you are disconnecting cables for a cable replacement:
Chapter 2 Chassis Service Procedures2-21
a. Unthread the cable out of the side branch of the cable tree, and off of the
cable plate.
b. Gently lower the cable to the floor.
■ If you are disconnecting cables for a line card replacement:
c. Gently lower the cable so that is it hanging from the side branch.
Caution – Do not allow the cable to drop or strike the floor. Jerking, bending,
pulling on, or dropping the cable can damage the cable. See Section 2.4.1 “Cable
Cautions” on page 2-21.
6. Repeat from Step 1 for the cable at 12A.
This is the lower cable.
7. Repeat from Step 1 moving to the right for cables 13B, 13A, 14B, and so on to
23A or the cable that needs replacement.
8. Repeat from Step 1 moving to the left for cables 11B, 11A, 10B, and so on to 0A
or the cable that needs replacement.
9. If you are removing cables to replace a line card, remove the cable tray.
See “Removing Cable Trays” on page 2-20.
▼ Attaching Cables to the Sun Datacenter Switch
3456
Note – This procedure assumes that you are cabling a single line card after a
replacement procedure. If all line cards are being cabled, or you are installing a
replacement cable, refer to the Sun Datacenter Switch 3456 Installation Guide.
1. Install a cable tray into the slot for the line card.
Refer to “Installing Cable Trays” on page 2-20.
2. Locate the cable for the connector 23A.
3. Curve the cable to the left through the front branch of the cable tree.
FIGURE 2-15.
See
2-22Sun Datacenter Switch 3456 Service Manual • August 2008
FIGURE 2-15 Threading the Cable Through the Cable Tree
Caution – Do not force a bend radius of less than 5 inches (127 mm). Any bend
tighter than this damages the inner fibers of the cable, rendering it useless.
4. Plug the first cable into the connector at 23A.
FIGURE 2-16.
See
Chapter 2 Chassis Service Procedures2-23
FIGURE 2-16 Plugging in an IB Cable
a. Visually inspect the cable connector to see whether the shell is not bent and
is parallel to the inner boards.
If the shell is bent or damaged, get a different cable.
b. Ensure that the retraction strap is forward.
c. Orient the cable connector to horizontal.
Ensure that the upper shell just touches the underside of the top of the
connector on the line card.
See
FIGURE 2-17.
FIGURE 2-17 Checking the IB Cable Connector
d. Slowly move the connector in.
As you slide the connector in, the top of the shell should scrape against the
underside of the top of the connector on the line card.
■ If the cable stops or binds after about 5 mm travel, back out and repeat from
Step c.
2-24Sun Datacenter Switch 3456 Service Manual • August 2008
■ If the connector stops or binds with about 2 mm still to go, back out and
repeat from Step c.
e. Continue to push the connector in until the hooks catch onto the top of the
connector on the line card.
5. Repeat from Step 2 for the second cable connecting to connector 23B.
6. Repeat from Step 2 moving to the left for cables connecting to connector 22A,
22B, 21A, and so on to 12B.
7. Repeat from Step 2 moving to the right for cables connecting to connector 0A,
0B, 1A, and so on to 11B.
Chapter 2 Chassis Service Procedures2-25
2-26Sun Datacenter Switch 3456 Service Manual • August 2008
CHAPTER
3
Power Supply Service Procedures
This chapter describes procedures for servicing the switch power supplies. Topics
include:
■ Section 3.1 “Troubleshooting Power Supplies” on page 3-2
■ Section 3.2 “Powering Off Power Supplies” on page 3-2
■ Section 3.3 “Removing Power Supplies” on page 3-3
■ Section 3.4 “Installing Power Supplies” on page 3-5
■ Section 3.5 “Powering On Power Supplies” on page 3-7
Commands described in this chapter are executed at the management console. See
the Sun Datacenter Switch 3456 Administration Guide for more information about these
commands.
3-1
3.1Troubleshooting Power Supplies
The status LEDs on the power supplies can help you determine the problem with the
power supplies. See
TABLE 3-1Power Supply Status LEDs
GlyphNameColorState and Meaning
ActiveGreenOn – Power supply enabled, 12 VDC is supplied.
AttentionAmberOn – Fault detected, 12 VDC shut down
ConnectedGreenOn – Correct AC input voltage is present.
Additionally, the showpresent and psustatus commands can provide some
information.
TABLE 3-1.
Off – Power supply disabled, 12 VDC is not supplied.
Flashing – No function.
Off – No faults detected
Flashing – No function
Off – No input voltage
Flashing – Incorrect AC input voltage.
3.2Powering Off Power Supplies
Power supplies can be brought from full power to standby state, using the
disablepsu command. For example, to bring power supply 0 (PSU0) to a standby
state:
# disablepsu 0
Using psu i2c addr 0x5d
PSU 0, 12 V is off
#
The power supplies are only fully powered off when they are disconnected from the
facility power. This is possible by:
■ Disconnecting the power cord for the power supply
■ De-energizing the respective circuit breaker for the power supply
3-2Sun Datacenter Switch 3456 Service Manual • August 2008
3.3Removing Power Supplies
▼ Removing a Power Supply
1. Determine which power supply is to be removed.
2. Use the disablepsu command to bring the power supply to a standby state.
3. At the power supply, remove the power cord.
See
FIGURE 3-2.
FIGURE 3-1 Removing the Power Cord
The power supply is completely powered off.
4. Swing the release lever of the power supply out and to the right.
See
FIGURE 3-2.
Chapter 3 Power Supply Service Procedures3-3
FIGURE 3-2 Releasing the Power Supply
5. Pull the handle of the power supply to remove it from the chassis.
FIGURE 3-3.
See
FIGURE 3-3 Removing the Power Supply
6. Set the power supply aside.
3-4Sun Datacenter Switch 3456 Service Manual • August 2008
3.4Installing Power Supplies
▼ Installing a Power Supply
1. Unwrap the replacement power supply from its antistatic packaging.
2. Swing open the release lever.
3. Orient the power supply with the handle on the left and the receptacle on the
right.
4. Slide the power supply into the open slot, pushing the power supply in until
the release lever moves.
See
FIGURE 3-4.
FIGURE 3-4 Installing the Power Supply
5. Swing the release lever to the left to secure the power supply into the chassis.
FIGURE 3-5.
See
Chapter 3 Power Supply Service Procedures3-5
FIGURE 3-5 Securing the Power Supply
6. Reconnect the power cord.
FIGURE 3-2.
See
3-6Sun Datacenter Switch 3456 Service Manual • August 2008
FIGURE 3-6 Attaching the Power Cord
The Connected LED lights to indicate the power supply is connected to facility
power.
7. Use the enablepsu command to bring the power supply to a fully powered
state.
8. Verify the power supply’s operation with the showpresent and psustatus
commands.
3.5Powering On Power Supplies
When facility power is applied to a power supply, it enters a standby state. You can
apply facility power by:
■ Plugging the power cord from the power supply into a ‘live’ receptacle
■ Energizing the respective circuit breaker for the power supply
Chapter 3 Power Supply Service Procedures3-7
Use the enablepsu command to bring the power supply from a standby state to full
power. For example, to bring power supply 0 (PSU0) to full power:
# enablepsu 0
Using psu i2c addr 0x5d
Turning on 12V ...
PSU 0, 12 V on
#
3-8Sun Datacenter Switch 3456 Service Manual • August 2008
CHAPTER
4
Fan Service Procedures
This chapter describes procedures for servicing the fans on the fabric cards. Topics
include:
■ Section 4.1 “Troubleshooting Fans” on page 4-1
■ Section 4.2 “Removing Fans” on page 4-1
■ Section 4.3 “Installing Fans” on page 4-2
Commands described in this chapter are executed at the management console. See
the Sun Datacenter Switch 3456 Administration Guide for more information about these
commands.
4.1Troubleshooting Fans
Each fan has a status LED that flashes when a fan has failed. Additionally, the
checkfans and getfans commands can provide some information.
4.2Removing Fans
▼ Removing a Fan
Note – Fans are hot swappable and do not require powering off for removal.
4-1
1. Determine which fan is to be removed.
If a fan has failed, its LED flashes.
2. Loosen the two captive thumbscrews on either side of the fan.
FIGURE 4-1.
See
FIGURE 4-1 Removing the Fan
3. Pull the fan straight out.
FIGURE 4-1.
See
4. Set the fan aside.
4.3Installing Fans
Note – Fans are hot-swappable and can be inserted into live fabric cards.
4-2Sun Datacenter Switch 3456 Service Manual • August 2008
▼ Installing a Fan
1. Unwrap the replacement fan from its antistatic packaging.
2. Orient the fan over the opening in the fabric card with the LED at the bottom.
3. Slide the fan into the fabric card until the fan stops.
See
FIGURE 4-2.
FIGURE 4-2 Installing the Fan
The fan might immediately power on.
4. Tighten the captive thumbscrews to secure the fan in the fabric card.
See
FIGURE 4-2.
5. Use the checkfans and getfans commands to verify the fan’s operation.
Chapter 4 Fan Service Procedures4-3
4-4Sun Datacenter Switch 3456 Service Manual • August 2008
CHAPTER
5
Chassis Management Controller
Service Procedures
This chapter describes procedures for servicing the CMCs. Topics include:
■ Section 5.1 “Troubleshooting CMCs” on page 5-2
■ Section 5.2 “Powering Off CMCs” on page 5-2
■ Section 5.3 “Removing CMCs” on page 5-3
■ Section 5.4 “Installing CMCs” on page 5-4
■ Section 5.5 “Powering On CMCs” on page 5-6
Commands described in this chapter are executed at the management console. See
the Sun Datacenter Switch 3456 Administration Guide for more information about these
commands.
5-1
5.1Troubleshooting CMCs
The chassis management controllers (CMCs) have several status LEDs that can
provide some troubleshooting assistance. See
TABLE 5-1CMC Status LEDs
GlyphNameColorState and Meaning
AttentionAmberOn – A fault has been detected.
Off – Normal operation.
Flashing – A critical error has happened.
Ready-to-RemoveBlueOn – CMC is ready to be removed.
Off – Do not remove the CMC.
Flashing – No function.
OKGreenOn – CMC is operating normally.
Off – No power is being supplied to the CMC.
Flashing – No function.
N/ANET MGT Link
(right)
N/ANET MGT Activity
(left)
GreenOn – Link is operating as a 100 Mbps connection.
Off – Link is operating as a 10/100 Mbps connection.
Flashing – No function.
AmberOn – Link is established.
Off – No link established.
Flashing – Activity on the port.
TABLE 5-1.
Additionally, the following commands can help troubleshooting CMCs:
■ i2ctest
■ clia shmstatus
■ clia sensordata
■ clia getfruledstate
5.2Powering Off CMCs
So long as standby power is present, the CMCs are on. A CMC can’t be powered off,
but it can be deactivated with the clia deactivate command. Deactivating
means to stop administration from that CMC.
5-2Sun Datacenter Switch 3456 Service Manual • August 2008
For example, to deactivate CMC0 (10h):
# clia deactivate 10 0
Pigeon Point Shelf Manager Command Line Interpreter
Command issued via IPMB, status = 0 (0x0)
Command executed successfully
#
Instead of deactivating a CMC, you can use the clia switchover command. The
clia switchover command transfers control of the Sun Datacenter Switch 3456
from one CMC to the other. For example:
# clia switchover
#
Note – You can use the clia switchover command on either the active or the
inactive CMC with the same results. The inactive CMC becomes active, the active
CMC becomes inactive.
5.3Removing CMCs
▼ Removing a CMC
1. If the active CMC is to be removed, use the clia switchover command to
transfer administration duties to the other CMC.
Otherwise, continue to Step 2.
2. Remove any cables connected to the CMC front panel.
3. Squeeze the latches on the release levers and wait for the blue
Ready-to-Remove LED to light.
4. Swing the release levers outward.
See
FIGURE 5-1.
Chapter 5 Chassis Management Controller Service Procedures5-3
FIGURE 5-1 Removing the CMC
5. Slowly pull the CMC from the chassis.
FIGURE 5-1.
See
6. Set the CMC aside.
5.4Installing CMCs
▼ Installing a CMC
1. Remove the replacement CMC from its antistatic packaging.
2. Squeeze the latches on the release levers and swing the levers outward.
3. Set the back of the CMC onto the rails inside the chassis.
5-4Sun Datacenter Switch 3456 Service Manual • August 2008
4. Carefully slide the CMC into the chassis until the release levers move.
FIGURE 5-2.
See
FIGURE 5-2 Installing and Securing the CMC
5. Swing the release levers inward to secure the CMC into the chassis.
FIGURE 5-2.
See
6. Reconnect the cables you removed previously to the front panel.
7. Configure the new CMC.
See the Sun Datacenter Switch 3456 Installation Guide or Sun Datacenter Switch 3456
Administration Guide.
8. If you used the clia switchover command when you removed the CMC, use
command again to transfer back control to the new CMC.
Chapter 5 Chassis Management Controller Service Procedures5-5
5.5Powering On CMCs
When a CMC is plugged into a powered chassis, the CMC is powered on by the
presence of standby voltage. Although the CMC is on, it might be inactive. A CMC
can be made active, using the clia switchover command. For example:
# clia switchover
This Shelf Manager is now active, but is shutting down to
trigger a switchover.
#
5-6Sun Datacenter Switch 3456 Service Manual • August 2008
CHAPTER
6
Fabric Card Service Procedures
This chapter describes procedures for servicing the fabric cards. Topics include:
■ Section 6.1 “Fabric Card Considerations” on page 6-1
■ Section 6.2 “Troubleshooting Fabric Cards” on page 6-2
■ Section 6.3 “Inspecting Fabric Cards” on page 6-3
■ Section 6.4 “Powering Off Fabric Cards” on page 6-6
■ Section 6.5 “Removing Fabric Cards” on page 6-7
■ Section 6.6 “Installing Fabric Cards” on page 6-8
■ Section 6.7 “Powering On Fabric Cards” on page 6-10
Commands described in this chapter are executed at the management console. See
the Sun Datacenter Switch 3456 Administration Guide for more information about these
commands.
6.1Fabric Card Considerations
Caution – The thermal management of the switch chassis is compromised when a
fabric card slot is vacant. You must install a filler panel or replacement fabric card
immediately after removing one.
Fabric cards use high-density iTRAC connectors that interface with the midplane
pins. If these connectors are damaged, the pins of the midplane connector are also
damaged upon fabric card insertion.
You must inspect the fabric card connectors, fans, and retainers before installing the
fabric card into the switch chassis.
6-1
6.2Troubleshooting Fabric Cards
The status LEDs on the fabric cards can help you determine the problem with the
fabric cards. See
TABLE 6-1Fabric Card Status LEDs
GlyphNameColorState and Meaning
LocatorWhiteOn – No function.
Ready-to-RemoveBlueOn – Fabric card has been disabled and is ready to be removed.
AttentionAmberOn – Fault detected.
OkGreenOn – Normal operation at full power.
Additionally, the following commands can provide basic status information:
■ showpresent
■ checkpwrfault
■ checkvoltages
■ checkswitches
■ showtemps
TABLE 6-1.
Off – Normal operation.
Flashing – The fabric card is identifying itself.
Off – Do not remove
Flashing – No function.
Off – No fault detected.
Flashing – Critical error.
Off – Standby voltage, or no power at all applied.
Flashing – No Function.
More complex and verbose commands are available for troubleshooting. See the Sun
Datacenter Switch 3456 Administration Guide and Sun Datacenter Switch 3456 Reference
Manual for further information.
6-2Sun Datacenter Switch 3456 Service Manual • August 2008
6.3Inspecting Fabric Cards
Caution – Inspect the replacement fabric card before removing the defective fabric
card from the chassis. This way, you can make a quick exchange and not
compromise the thermal management of the switch.
▼ Inspecting the Fabric Card iTRAC Connectors
The iTRAC connectors on fabric cards are the receptacles for the midplane connector
pins. These connectors are checked just as meticulously as the midplane connector
pins. However, you must verify that no connectors are damaged and no holes are
blocked.
You need the following tools:
■ Bright flashlight
■ Magnifying glass or loupe
■ Dental type metal pick
1. Unwrap the fabric card from its antistatic packaging.
2. Place the fabric card on a work surface with the iTRAC connectors facing you.
3. Using the flashlight positioned to the side and above you, look at the holes of
the left-end connector.
Look at the holes straight on. See
FIGURE 6-1.
Chapter 6 Fabric Card Service Procedures6-3
FIGURE 6-1 Inspecting Fabric Card Connectors
Note – Do not look at the individual holes, rather look at all of the connector ’s holes
as a group. A damaged or contaminated hole will be apparent.
4. Look for any closed over or contaminated holes.
A closed-over or contaminated hole appears brighter than the surrounding holes.
If you see any closed-over or contaminated holes, use the magnifying glass and
pick to remove the contamination or open the closed-over hole.
Verify that the contamination has been removed from the connector and the
connector surface is clean. Use a spare midplane connector pin to verify the
resistance to insertion.
■ If there is great resistance, but the pin does enter the hole properly, investigate
why.
■ If the pin does not enter the hole at all, reject the fabric card. Contact your
SunService
SM
representative.
5. Look for any enlarged or cracked holes.
An enlarged or cracked hole appears darker than the surrounding holes.
If you see any enlarged or cracked holes, use a spare midplane connector pin to
verify the resistance to insertion.
■ If the insertion gives a little resistance and the pin does not wobble in the hole,
the connector is still acceptable.
■ If there is no resistance to insertion and the pin can wobble in the hole, reject
the fabric card. Contact your SunService representative.
6-4Sun Datacenter Switch 3456 Service Manual • August 2008
6. Move your head slightly right to the next connector, and inspect its pins,
repeating Step 4 and Step 5.
7. Continue in this manner for each connector until you reach the right side of the
fabric card.
▼ Inspecting the Fans
The fans of the fabric card are FRU components. The fans secure in position with
two thumbscrews.
1. Ensure that each fan is seated properly in the fabric card.
2. Ensure that both thumbscrews are tight on each fan.
▼ Inspecting the Retainers
The two retainers on the fabric card serve three purposes:
■ Align the fabric card for proper insertion into the chassis.
■ Allow final insertion of the fabric card into the chassis and simplify the physical
connection of the fabric card connectors to the midplane connectors.
■ Allow extraction of the fabric card from the chassis and simplify the physical
disconnection of the fabric card connectors from the midplane connectors.
The retainer’s design is shown in
● Ensure that the pieces of the retainer look finished, move smoothly, do not
FIGURE 6-2.
bind, or do not feel loose or sloppy in any way.
See
FIGURE 6-2.
Chapter 6 Fabric Card Service Procedures6-5
FIGURE 6-2 Retainer Design
6.4Powering Off Fabric Cards
Powering off a fabric card is a two-stage process. First you must take the fabric card
to a standby state, then you can power off the fabric card completely.
The deactivate command powers down the fabric card to a standby state. For
example, to deactivate fabric card 14:
# deactivate fc 14
Deactivating FC 14
Pigeon Point Shelf Manager Command Line Interpreter
Command issued via IPMB, status = 0 (0x0)
Command executed successfully
#
Caution – When a fabric card is deactivated, its fans are also powered off. The
cooling provided by the fabric card is no longer available to the rest of the chassis.
When you power off a fabric card for repairs or replacement, work quickly so that
the chassis thermal management is not compromised.
6-6Sun Datacenter Switch 3456 Service Manual • August 2008
The disableboard command completely powers down (disable) a fabric card so
that it can be removed from the chassis. For example, to disable fabric card 14:
# disableboard fc 14
#
6.5Removing Fabric Cards
This procedure describes how to remove one fabric card as part of a replacement
operation.
▼ Removing a Fabric Card
Caution – Before beginning this procedure, have a fabric card filler panel or
replacement fabric card prepared and standing by for immediate installation. A
quick exchange is necessary to maintain chassis thermal management.
Caution – If you are going to immediately replace a defective fabric card with a
new one, inspect and prepare the new fabric card, performing Step 1 through Step 6
in “Installing a Fabric Card” on page 6-8 before starting this procedure.
Removing the fabric card is a two-person task, as both people must work in a
synchronized manner. To prevent damage to the fabric card or the pins of the
midplane connector, the two installers perform identical tasks simultaneously.
1. Extend the antitilt bar from the bottom of the switch chassis.
2. Power off the fabric card, using the deactivate and disableboard
commands.
3. Using a 17 mm socket and ratchet, turn each retainer drive screw
counter-clockwise until no resistance is felt.
4. Slowly rotate each retainer drive screw counter-clockwise, until resistance is
felt, then stop.
5. Simultaneously rotate the retainer drive screws clockwise, stopping at each half
turn, to maintain synchronization.
6. Continue synchronized rotation until greater resistance is felt, then stop.
Chapter 6 Fabric Card Service Procedures6-7
7. Rotate both retainer levers to the unlock position.
8. Grasp the handles at both ends of the fabric card and slowly pull it from the
chassis.
Stop when the fabric card is halfway out.
9. Improve your grip to support the weight of the fabric card.
10. Continue to pull the fabric card out.
11. Lift the fabric card out and away from the chassis.
12. Set the fabric card onto a flat horizontal work surface.
13. Immediately install replacement fabric card or filler panel into the vacant slot.
Continue to “Installing a Fabric Card” on page 6-8, Step 8, or perform the
following:
a. Grasp the handles at each end of the filler panel and lift the panel to the
vacant slot.
b. Turn the levers counter-clockwise to the unlock position.
c. Slide the filler panel into the chassis until it stops.
d. Turn the levers clockwise to the lock position.
14. Retract and secure the antitilt bar.
6.6Installing Fabric Cards
This procedure describes how to install one fabric card as part of a replacement
operation. If you are installing more than one fabric card, repeat the procedure for
each fabric card. Alternatively, refer to the Sun Datacenter Switch 3456 InstallationGuide.
▼ Installing a Fabric Card
Installing the fabric card is a two-person task, as both people must work in a
synchronized manner. To prevent damage to the fabric card or the pins of the
midplane connector, the two installers perform identical tasks simultaneously.
1. Extend the antitilt bar from the bottom of the switch chassis.
6-8Sun Datacenter Switch 3456 Service Manual • August 2008
2. Unwrap the fabric card from its antistatic packaging.
3. Inspect the connectors, fans, and retainers.
See:
■ “Inspecting the Fabric Card iTRAC Connectors” on page 6-3
■ “Inspecting the Fans” on page 6-5
■ “Inspecting the Retainers” on page 6-5
4. Place a fabric card on a work surface, with the retainers facing the two
installers.
5. Using a 17 mm socket and ratchet, turn each retainer drive screw fully
counter-clockwise until resistance is felt.
6. Rotate both the retainer drive screws clockwise, 1/4 turn.
Caution – If you are preparing a new fabric card as a replacement operation, stop
here and refer to: “Removing a Fabric Card” on page 6-7
7. Remove the filler panel where the fabric card is to install.
a. Grasp the locking levers at each end of the filler panel.
b. Turn the levers counter-clockwise to the unlocked position.
c. Lift the filler panel away from the chassis by the handles.
d. Set the filler panel aside.
8. Lift the fabric card from the work surface and orient it vertically, with the
status LEDs at the bottom.
9. Insert the fabric card into the chassis at the vacant slot.
Ensure that the fabric card is vertical.
Note – Once the fabric card is about halfway into the slot, it is no longer necessary
to bear the weight of the fabric card.
10. Continue to slide the fabric card in, maintaining a vertical orientation.
When you feel resistance, stop.
11. Rotate both retainer levers to the unlocked position.
12. Slide the fabric card for another 1.75 in (4 cm) until it stops.
13. Rotate both retainer levers to the locked position.
Chapter 6 Fabric Card Service Procedures6-9
14. Slowly rotate each retainer drive screw clockwise, until resistance is felt, then
stop.
15. Simultaneously rotate the retainer drive screws clockwise, stopping at each half
turn, to maintain synchronization.
During this time, the retainer levers might have moved from the locked position.
Move the levers back to the locked position and continue.
16. Continue synchronized rotation until greater resistance is felt, then stop.
17. Verify that the fabric card is properly seated in the slot.
18. Give each retainer drive screw a final turn to torque.
19. Retract and secure the antitilt bar.
20. Power on and activate the fabric card using the enableboard and activate
commands.
21. Verify the operation of the new fabric card.
6.7Powering On Fabric Cards
After installing a fabric card, use the enableboard command to bring standby
power to the fabric card. For example, to enable fabric card 14:
# enableboard fc 14
fc 14 is now enabled
#
Once enabled, bring the fabric card up to full power with the activate command.
The activate command also enables routing of links to use the new fabric card.
For example, to activate fabric card 14:
# activate fc 14
Activating FC 14
Pigeon Point Shelf Manager Command Line Interpreter
Command issued via IPMB, status = 0 (0x0)
Command executed successfully
#
Use the following commands to verify the status of the new fabric card:
■ showpresent
■ checkpwrfault
6-10Sun Datacenter Switch 3456 Service Manual • August 2008
■ checkvoltages
■ checkswitches
■ showtemps
More complex and verbose commands are available for verification. See the Sun
Datacenter Switch 3456 Administration Guide and Sun Datacenter Switch 3456 Reference
Manual for further information.
Chapter 6 Fabric Card Service Procedures6-11
6-12Sun Datacenter Switch 3456 Service Manual • August 2008
CHAPTER
7
Line Card Service Procedures
This chapter describes procedures for servicing the line cards. Topics include:
■ Section 7.1 “Line Card Considerations” on page 7-1
■ Section 7.2 “Troubleshooting Line Cards” on page 7-2
■ Section 7.3 “Inspecting Line Cards” on page 7-3
■ Section 7.4 “Powering Off Line Cards” on page 7-6
■ Section 7.5 “Removing Line Cards” on page 7-7
■ Section 7.6 “Installing Line Cards” on page 7-12
■ Section 7.7 “Powering On Line Cards” on page 7-15
Commands described in this chapter are executed at the management console. See
the Sun Datacenter Switch 3456 Administration Guide for more information about these
commands.
7.1Line Card Considerations
Caution – The thermal management of the switch chassis is compromised when a
line card slot is vacant. You must install a filler panel or replacement line card
immediately after removing one.
Line cards use high-density iTRAC connectors that interface with the midplane pins.
If these connectors are damaged, the pins of the midplane connector are also
damaged upon line card insertion.
Equally important, the line cards have iPASS connectors for attaching IB cables. If
one of these connectors is damaged, then 24 nodes of the line card cannot be used.
7-1
You must inspect the front and back line card connectors, and retainers before
installing the line card into the switch chassis.
7.2Troubleshooting Line Cards
The status LEDs on the line cards can help you determine the problems with the line
cards. See
TABLE 7-1Line Card Status LEDs
GlyphNameColorState and Meaning
LocatorWhiteOn – No function.
Ready-to-RemoveBlueOn – Line card has been disabled and is ready to be removed.
AttentionAmberOn – Fault detected.
OkGreenOn – Normal operation at full power.
N/ALinkGreenOn – Link established.
TABLE 7-1.
Off – Normal operation.
Flashing – The line card is identifying itself.
Off – Do not remove
Flashing – No function.
Off – No fault detected.
Flashing – Critical error.
Off – Standby voltage, or no power at all applied.
Flashing – No Function.
Off – No link or link down.
Flashing – Symbol error.
Additionally, the following commands can provide basic status information:
■ showpresent
■ checkpwrfault
■ checkvoltages
■ checkswitches
■ showtemps
More complex and verbose commands are available for troubleshooting. See the Sun
Datacenter Switch 3456 Administration Guide and Sun Datacenter Switch 3456 Reference
Manual for further information.
7-2Sun Datacenter Switch 3456 Service Manual • August 2008
7.3Inspecting Line Cards
Caution – Inspect the replacement line card before removing the defective line card
from the chassis. This way, you can make a quick exchange and not compromise the
thermal management of the switch.
▼ Inspecting the Line Card iTRAC Connectors
The large iTRAC connectors on line cards are the receptacles for the midplane
connector pins. These connectors are checked just as meticulously as the midplane
connector pins. However, you must verify that no connectors are damaged and no
holes are blocked.
You need the following tools:
■ Bright flashlight
■ Magnifying glass or loupe
■ Dental type metal pick
1. Unwrap the line card from its antistatic packaging.
2. Place the line card on a work surface with the iTRAC connectors facing you.
3. Using the flashlight positioned to the side and above you, look at the holes of
the left-end connector.
Look at the holes straight on. See
FIGURE 7-1.
Chapter 7 Line Card Service Procedures7-3
FIGURE 7-1 Inspecting Line Card Connectors
Note – Do not look at the individual holes, rather look at all of the connector ’s holes
as a group. A damaged or contaminated hole will be apparent.
4. Look for any closed over or contaminated holes.
A closed-over or contaminated hole appears brighter than the surrounding holes.
If you see any closed-over or contaminated holes, use the magnifying glass and
pick to remove the contamination or open the closed-over hole.
Verify that the contamination has been removed from the connector and the
connector surface is clean. Use a spare midplane connector pin to verify the
resistance to insertion.
■ If there is great resistance, but the pin does enter the hole properly, investigate
why.
■ If the pin does not enter the hole at all, reject the line card. Contact your
SunService
SM
representative.
5. Look for any enlarged or cracked holes.
An enlarged or cracked hole appears darker than the surrounding holes.
If you see any enlarged or cracked holes, use a spare midplane connector pin to
verify the resistance to insertion.
■ If the insertion gives a little resistance and the pin does not wobble in the hole,
the connector is still acceptable.
■ If there is no resistance to insertion and the pin can wobble in the hole, reject
the fabric card. Contact your SunService representative.
7-4Sun Datacenter Switch 3456 Service Manual • August 2008
6. Move your head slightly right to the next connector, and inspect its pins,
repeating Step 4 and Step 5.
7. Continue in this manner for each connector until you reach the right side of the
line card.
▼ Inspecting the Line Card iPASS Connectors
The small iPASS connectors on the line card are for the InfiniBand cables. The design
of these connectors is much simpler and more robust, so inspection is much easier.
● Check the small connectors for any debris, or cracked or bent fittings.
Most debris can be blown out. If you find a cracked or bent connector, contact
your Sun Service representative.
▼ Inspecting the Retainers
The two retainers on the line card serve three purposes:
■ Align the line card for proper insertion into the chassis.
■ Allow final insertion of the line card into the chassis and simplify the physical
connection of the line card connectors to the midplane connectors.
■ Allow extraction of the line card from the chassis and simplify the physical
disconnection of the line card connectors from the midplane connectors.
The retainer’s design is shown in
● Ensure that the pieces of the retainer look finished, move smoothly, do not
FIGURE 7-2.
bind, or do not feel loose or sloppy in any way.
See
FIGURE 7-2.
Chapter 7 Line Card Service Procedures7-5
FIGURE 7-2 Retainer Design
7.4Powering Off Line Cards
Powering off a line card is a two-stage process. First you must take the line card to a
standby state, then you can power off the line card completely.
The deactivate command powers down the line card to a standby state. For
example, to deactivate line card 20:
# deactivate lc 20
Deactivating LC 20
Pigeon Point Shelf Manager Command Line Interpreter
Command issued via IPMB, status = 0 (0x0)
Command executed successfully
#
The disableboard command completely powers down (disable) a line card so that
it can be removed from the chassis. For example, to disable line card 20:
# disableboard lc 20
#
7-6Sun Datacenter Switch 3456 Service Manual • August 2008
7.5Removing Line Cards
This procedure describes how to remove one line card as part of a replacement
operation.
▼ Removing a Line Card
Caution – Before beginning this procedure, have a line card filler panel or
replacement line card prepared and standing by for immediate installation. A quick
exchange is necessary to maintain chassis thermal management.
Caution – If you are going to immediately replace a defective line card with a new
one, inspect and prepare the new line card, performing Step 1 through Step 6 in
“Installing a Line Card” on page 7-12 before starting this procedure.
Removing the line card is a two-person task, as both people must work in a
synchronized manner. To prevent damage to the line card or the pins of the
midplane connector, the two installers perform identical tasks simultaneously.
1. Extend the antitilt bar from the bottom of the switch chassis.
2. Power off the line card, using the deactivate and disableboard commands.
3. Remove the IB cables from the iPASS connectors on the front of the line card.
See “Removing Cables From the Sun Datacenter Switch 3456” on page 2-22.
4. Using a 17 mm socket and ratchet, turn each retainer drive screw
counter-clockwise until no resistance is felt.
5. Slowly rotate each retainer drive screw counter-clockwise, until resistance is
felt, then stop.
6. Simultaneously rotate the retainer drive screws clockwise, stopping at each half
turn, to maintain synchronization.
7. Continue synchronized rotation until greater resistance is felt, then stop.
8. Rotate both retainer levers to the unlock position.
See
FIGURE 7-3.
Chapter 7 Line Card Service Procedures7-7
FIGURE 7-3 Unlocking Retainer Levers
9. Grasp the handles at both ends of the line card and slowly pull it from the
chassis.
Stop when the line card is halfway out. See
FIGURE 7-4 Pulling Line Card Out
FIGURE 7-4.
7-8Sun Datacenter Switch 3456 Service Manual • August 2008
10. Improve your grip to support the weight of the line card.
11. Continue to pull the line card out.
12. Lift the line card out and away from the chassis.
13. Set the line card onto a flat horizontal work surface.
14. Immediately install replacement line card or filler panel into the vacant slot.
Continue to “Installing a Line Card” on page 7-12, Step 8, or perform the
following:
a. Grasp the handles at each end of the filler panel and lift the panel to the
vacant slot.
b. Turn the levers counter-clockwise to the unlock position.
7-10Sun Datacenter Switch 3456 Service Manual • August 2008
7.6Installing Line Cards
This procedure describes how to install one line card as part of a replacement
operation. If you are installing more than one line card, repeat the procedure for
each line card. Alternatively, refer to the Sun Datacenter Switch 3456 Installation Guide .
▼ Installing a Line Card
Installing the line card is a two-person task, as both people must work in a
synchronized manner. To prevent damage to the line card or the pins of the
midplane connector, the two installers perform identical tasks simultaneously.
1. Extend the antitilt bar from the bottom of the switch chassis.
2. Unwrap the line card from its antistatic packaging.
3. Inspect the connectors and retainers.
See:
■ “Inspecting the Line Card iTRAC Connectors” on page 7-3
■ “Inspecting the Line Card iPASS Connectors” on page 7-5
■ “Inspecting the Retainers” on page 7-5
4. Place a line card on a work surface, with the retainers facing the two installers.
5. Using a 17 mm socket and ratchet, turn each retainer drive screw fully
counter-clockwise until resistance is felt.
6. Rotate both the retainer drive screws clockwise, 1/4 turn.
Caution – If you are preparing a new line card as a replacement operation, stop
here and refer to: “Removing a Line Card” on page 7-7
7. Remove the filler panel for where the line card is to install.
a. Grasp the locking levers at each end of the filler panel.
FIGURE 7-8.
See
Chapter 7 Line Card Service Procedures7-11
FIGURE 7-8 Turning Filler Panel Lock Levers
b. Turn the levers counter-clockwise to the unlocked position.
FIGURE 7-8.
See
c. Lift the filler panel away from the chassis by the handles.
See
FIGURE 7-9.
7-12Sun Datacenter Switch 3456 Service Manual • August 2008
FIGURE 7-9 Removing the Filler Panel
d. Set the filler panel aside.
8. Lift the line card from the work surface and orient it horizontally, with the link
LEDs across the bottom.
9. Insert the line card into the chassis at the vacant slot.
Ensure that the line card is square to the chassis and not skewed.
Note – Once the line card is about halfway into the slot, it is no longer necessary to
bear the weight of the line card.
10. Continue to slide the line card in, maintaining a squared orientation.
When you feel resistance, stop.
11. Rotate both retainer levers to the unlocked position.
12. Slide the line card for another 1.75 in (4 cm) until it stops.
13. Rotate both retainer levers to the locked position.
14. Slowly rotate each retainer drive screw clockwise, until resistance is felt, then
stop.
Chapter 7 Line Card Service Procedures7-13
15. Simultaneously rotate the retainer drive screws clockwise, stopping at each half
turn, to maintain synchronization.
During this time, the retainer levers might have moved from the locked position.
Move the levers back to the locked position and continue.
16. Continue synchronized rotation until greater resistance is felt, then stop.
17. Verify that the line card is properly seated in the slot.
18. Give each retainer drive screw a final turn to torque.
19. Retract and secure the antitilt bar.
20. Power on and activate the line card using the enableboard and activate
commands.
21. Attach the IB cables to the line card.
See “Attaching Cables to the Sun Datacenter Switch 3456” on page 2-23.
22. Verify the operation of the new line card.
7.7Powering On Line Cards
After installing a line card, use the enableboard command to bring standby power
to the line card. For example, to enable line card 20:
# enableboard lc 20
lc 20 is now enabled
#
Once enabled, bring the line card up to full power with the activate command.
The activate command also enables routing of links to use the new line card. For
example, to activate line card 20:
# activate lc 20
Activating LC 20
Pigeon Point Shelf Manager Command Line Interpreter
Command issued via IPMB, status = 0 (0x0)
Command executed successfully
#
Use the following commands to verify the status of the new line card:
■ showpresent
■ checkpwrfault
7-14Sun Datacenter Switch 3456 Service Manual • August 2008
■ checkvoltages
■ checkswitches
■ showtemps
More complex and verbose commands are available for verification. See the Sun
Datacenter Switch 3456 Administration Guide and Sun Datacenter Switch 3456 Reference
Manual for further information.
Chapter 7 Line Card Service Procedures7-15
7-16Sun Datacenter Switch 3456 Service Manual • August 2008