C H A P T E R  6

Removing and Replacing Hot-Swappable Cards


caution icon

Caution - If you are just powering on your Netra CT server, do not remove or install any cards in the system until you have verified that the system is completely powered up. Refer to Section 2.1.1, Verifying Full Power-Up for more information.





caution icon

Caution - An energy hazard is present if any I/O slots are left uncovered. If you remove a card from an I/O slot, you must fill it with either a replacement card or a filler panel.





Note - Consult the Netra CT Server Safety and Compliance Manual and Chapter 3 of this document for safety and board-handling information prior before performing the procedures in this chapter.



There are three types of cards that are hot-swappable in the Netra CT server:

The procedures for removing and replacing these cards are given in Section 6.1, Main Cards.

Note that the front transition cards are only hot-swappable as long as the accompanying host CPU card has been removed first.

The procedures for removing and replacing these cards are given in Section 6.2, Front-Transition Card.

Note that the rear transition cards are only hot-swappable as long as the accompanying main card has been removed first.

The procedures for removing and replacing these cards are given in Section 6.3, Rear-Transition Cards.


6.1 Main Cards

This section gives procedures for the installation, removal, and replacement of the following hot-swappable cards for the front-access models of the Netra CT 410 server and Netra CT 810 server:

FIGURE 6-1 shows the locations of these cards in the Netra CT 810 server. FIGURE 6-2 shows the locations of these cards in the diskfull Netra CT 410 server, and FIGURE 6-3 shows the locations of these cards in the diskless Netra CT 410 server.

 FIGURE 6-1 Cards Within a Netra CT 810 Server


 FIGURE 6-2 Cards Within a Netra CT 410 Server, Diskfull Version


 FIGURE 6-3 Cards Within a Netra CT 410 Server, Diskless Version


6.1.1 Rules and Restrictions for Hot-Swapping Main Cards

Before removing and replacing any of the main cards in your server, you must first understand all rules and restrictions involved. The following sections describe the rules and restrictions for the main cards:

6.1.1.1 General Rules and Restrictions for Hot-Swapping Cards

Following are the rules and restrictions you must understand before hot-swapping any card in the Netra CT server:

1. You must have the host CPU card, alarm card and system controller board installed in the Netra CT server before you can hot-swap any I/O card or satellite CPU card.

2. You may not be able to perform a full hot-swap on any card if the card is in a failed condition; you must perform a basic hot-swap in this case. To determine if a card has failed, verify that these LEDs are in following states:

If the card has failed, you must manually unconfigure the card before you can hot-swap it by entering the following commands:

# cfgadm -c unconfigure ap_id
# cfgadm -c disconnect ap_id

where ap_id is the attachment-point ID listed in the first column.

If the LED states continue to show a failed condition for the card, then you must halt the system.

3. You can only remove a card if all of these LEDs are in the following states:

Do not remove any card from the system if any of the LEDs is not in the proper state.

6.1.1.2 Rules and Restrictions for Hot-Swapping the Host CPU Card

Following are the rules and restrictions you must understand before hot-swapping a host CPU card:

1. You must have the alarm card and system controller board installed in the Netra CT server before you can hot-swap the host CPU card.

2. When you remove a host CPU card from a server while the server is running, it will disable the CompactPCI bus, which means that the connection with all I/O cards installed in the server will be lost. Once the CompactPCI bus is disabled, MCNet will also become disabled in the system.

After you install the host CPU card back into the server, it will enable the CompactPCI bus and will attempt to connect to all occupied card slots.

Satellite CPU cards are unaffected by the disabling of the CompactPCI bus; they will continue to function as stand-alone processors when you hot-swap a host CPU card.

3. If the host CPU is at the OpenBoot prompt (the ok prompt) and you want to hot-swap the host CPU card, you must power off the host CPU slot through the alarm card.

To power off the host CPU slot in a Netra CT server, access the alarm card and, through the alarm card command line interface, enter:

cli> poweroff host

Refer to the Netra CT Server System Administration Manual for more information on accessing the alarm card.

Use the poweron command to power on the host CPU card once you've installed the replacement host CPU card.

4. If you are installing a Netra CP2140 host CPU board into a Netra CT server, do not change the default SMC module switch settings on the SW0501 switches. The Netra CT server supports high availability hot swap; however, because the alarm card controls the high availability on the Netra CT server, the settings on the SW0501 switches on the Netra CP2140 host CPU card should actually be set in the default, non-high availability settings. Refer to the Netra CT Server Product Overview for more information.

6.1.1.3 Rules and Restrictions for Hot-Swapping the Alarm Card

Following are the rules and restrictions you must understand before hot-swapping an alarm card:

1. You must have the host CPU card and the system controller board installed in the Netra CT server before you can hot-swap the alarm card.

2. You cannot hot-swap any other component in a Netra CT server while the alarm card is being hot-swapped.

3. You cannot install any new component into a Netra CT server while the alarm card is being hot-swapped.

6.1.2 Removing and Replacing Main Cards

The individual slots in your server will be set to full hot swap by default. You can also change the slots to basic hot swap manually. Refer to Chapter 5 for more information.

6.1.2.1 Removing a Main Card



Note - Do not proceed with these instructions until you have reviewed the information in Section 6.1.1, Rules and Restrictions for Hot-Swapping Main Cards. Failure to do so may result in an inadvertent system reboot or incorrect configuration information.



1. Locate the card that you want to remove from the server.

FIGURE 6-1 shows the locations of these cards in the Netra CT 810 server. FIGURE 6-2 shows the locations of these cards in the diskfull Netra CT 410 server, and FIGURE 6-3 shows the locations of these cards in the diskless Netra CT 410 server.

2. Log into the Netra CT server.

Refer to Section 5.2.1, Logging In to the Netra CT Server, then return to this procedure.

3. Perform any necessary card-specific software commands.

4. Determine the hot swap state for the slot that holds the card you are about to remove.

To determine the current hot swap state for the slots in your server, as root, enter:

# prtconf -v -P

The output is similar to the following (note that the following output is for a Netra CT 810 server; the output is similar for the Netra CT 410 server):

cphsc, instance #0
            System properties:
                name='instance' type=int items=1
                    value=00000000
                name='default-hotswap-mode' type=string items=1
                    value='full'
            Driver properties:
                name='AL-8-autoconfig' type=string items=1 dev=none
                    value='enabled'
                name='IO-7-autoconfig' type=string items=1 dev=none
                    value='enabled'
                name='IO-6-autoconfig' type=string items=1 dev=none
                    value='enabled'
                name='IO-5-autoconfig' type=string items=1 dev=none
                    value='enabled'
                name='IO-4-autoconfig' type=string items=1 dev=none
                    value='enabled'
                name='IO-3-autoconfig' type=string items=1 dev=none
                    value='enabled'
                name='IO-2-autoconfig' type=string items=1 dev=none
                    value='enabled'
               name='CPU-autoconfig' type=string items=1 dev=none
                    value='enabled'
               name='hotswap-mode' type=string items=1 dev=none
                    value='full'

5. Identify the attachment-point ID that corresponds to the slot where you will be removing the card.

As root, enter:

# cfgadm

For a Netra CT 810 server, you should get feedback similar to the following:

Ap_Id				Type				Receptacle					Occupant					Condition
AL-8				mcd/fhs				connected					configured					ok
CPU				bridge/fhs				connected					configured					ok
IO-2				stpcipci/fhs				connected					configured					ok
IO-3				unknown				empty					unconfigured					unknown
IO-4				stpcipci/fhs				connected					configured					ok
IO-5				unknown				empty					unconfigured					unknown
IO-6				unknown				empty					unconfigured					unknown
IO-7				unknown				empty					unconfigured					unknown

For a Netra CT 410 server, you should get feedback similar to the following:

Ap_Id				Type				Receptacle					Occupant					Condition
AL-1				mcd/fhs				connected					configured					ok
CPU				bridge/fhs				connected					configured					ok
IO-2				unknown				empty					unconfigured					unknown
IO-4				stpcipci/fhs				connected					configured					ok
IO-5				stpcipci/fhs				connected					configured					ok

The attachment-point ID is shown in the first column of the readout; for example, the attachment-point ID for slot 4 in a Netra CT 810 server would be IO-4.

6. Disconnect the card with the cfgadm (1m) utility:

# cfgadm -c unconfigure ap_id
# cfgadm -c disconnect ap_id

where ap_id is the attachment-point ID. For example, to deactivate the card in slot 4, as root, enter:

# cfgadm -c unconfigure IO-4
# cfgadm -c disconnect IO-4

7. If you are hot-swapping an alarm card, reset the alarm card before removing it.

Refer to the Netra CT Server System Administration Manual for more information.

8. Attach the antistatic wrist strap.

Refer to Section 1.2, Attaching the Antistatic Wrist Strap.

9. Using a No. 2 Phillips screwdriver, loosen the two captive screws inside the card's ejection levers, one on top and one on the bottom (FIGURE 6-4).

 FIGURE 6-4 Loosening the Ejection Lever Captive Screws


10. Unlock the ejection levers.



caution icon

Caution - Only unlock the ejection levers at this point; do not unseat the card until the LEDs on the system status panel are in the proper state.



There are several different models of locking ejection levers, so the method you would use to unlock the ejection levers will vary depending on the model of the ejection lever used on the card; for example, one model uses red tabs at the top and bottom to unlock the card (FIGURE 6-5). Refer to the documentation that came with the card for instructions on unlocking the card.

 FIGURE 6-5 Unlocking the Ejection Levers


11. Locate the LEDs on the system status panel for the card that you want to remove.

The system status panel on each server has LEDs that show the status of the card installed in each set of the slots in that particular server. FIGURE 6-6 shows the LEDs on the Netra CT 810 server and FIGURE 6-7 shows the LEDs on the Netra CT 410 server.

 FIGURE 6-6 LEDs on the System Status Panel (Netra CT 810 Server)


 FIGURE 6-7 LEDs on the System Status Panel (Netra CT 410 Server)


12. Determine if you can remove the card safely at this time.

You can remove the card only if all of these LEDs are in the following states:

For more information on all the stages and meanings of the system status panel LEDs, refer to Troubleshooting the System Using the System Status Panel. The following table gives more detailed information on the LEDs and the meanings of each of their states.

TABLE 6-1 CompactPCI Board LED States and Meaning

Green Power LED state

Amber Okay to Remove LED state

Meaning

Action

Off

Off

The slot is empty or the system thinks that the slot is empty because the system didn't detect the card when it was inserted.

If there is a card installed in this slot, then one of the following components is faulty:

  • the card installed in the slot
  • the alarm card
  • the system controller board

Remove and replace the failed component to clear this state.

Blinking

Off

The card is coming up or going down.

Do not remove the card in this state.

On

Off

The card is up and running.

Do not remove the card in this state.

Off

On

The card is powered off.

You can remove the card in this state.

Blinking

On

The card is powered on, but it is offline for some reason (for example, a fault was detected on the card).

Wait several seconds to see if the green Power LED stops blinking. If it does not stop blinking after several seconds, enter cfgadm and verify that the card is in the unconfigured state, then perform the necessary action, depending on the card:

  • Alarm card--You can remove the alarm card in this state.
  • All other cards--Power off the slot through the alarm card software, then remove the card.

On

On

The card is powered on and is in use, but a fault has been detected on the card.

Deactivate the card using one of the following methods:

  • Use the cfgadm -f -c unconfigure command to deactivate the card. Note that in some cases, this may cause the system to panic, depending on the nature of the card hardware or software.
  • Halt the system and power off the slot through the alarm card software, then remove the card.

The green Power LED will then give status information:

  • If the green Power LED goes off, then you can remove the card.
  • If the green Power LED remains on, then you must halt the system and power off the slot through the alarm card software.



caution icon

Caution - Do not remove a card unless all of the LEDs are in the proper states. If you remove a card when any of the LEDs are not in the proper state, it may lead to unpredictable results. It may take several seconds or minutes for the LEDs to transition to the proper states.





caution icon

Caution - Do not attempt to hot-swap any other cards until you see that the first card has been fully deactivated. Hot-swapping more than one card at the same time may lead to unpredictable results. In some situations, it could several minutes for the card to completely deactivate.





Note - If the server is set to the default full hot-swap mode, unlocking the ejection levers automatically starts the cfgadm unconfigure operation. If you decide that you do not want to remove the card, you must wait until the LEDs are in the correct state (as shown in Step 12), completely unseat the card, reseat it, then lock the ejection levers again in order to start the cfgadm configure operation. Simply locking the ejection levers after unlocking them will not start the driver attachment process.



13. When it is safe to remove the card, disconnect any cables connected to the card.

14. Press outward on the two ejection levers on the card to unseat the card from the card cage.

15. Carefully slide the card out of the slot and place it on the electrostatic discharge mat.

If you are hot-swapping an alarm card, you may notice one thing that is unique to the alarm card. If you enter the cfgadm command after you have removed the alarm card, you will see disconnected under the Receptacle column. For all other cards, after you have removed the card, you should see empty under the Receptacle column.

16. Perform any additional card-specific hardware procedures, if necessary.

For example, you may want to remove the PMC(s) from a faulty satellite CPU or I/O card and install it on the replacement card later on. Refer to the documentation that you received with your card for more information.

17. Secure a blank filler panel over the empty I/O slots, if necessary.

If you are not going to replace the card right away, you must install a blank filler panel over the opening to ensure proper airflow in the system. The slot filler panel is secured to the card cage using two screws, one at the top of the filler panel, the other at the bottom.

18. Determine if you are removing a card from a front-access or rear-access model server.

6.1.2.2 Inserting a Main Card



caution icon

Caution - When inserting a number of cards to different slots in the system, insert the cards one at a time and wait until each card is fully configured in the system. If you insert multiple cards in rapid succession and at the same time, you may panic or hang the system.





Note - If you are installing a Netra CP2140 host CPU board into a Netra CT server, do not change the default SMC module switch settings on the SW0501 switches. The Netra CT server supports high availability hot swap; however, because the alarm card controls the high availability on the Netra CT server, the settings on the SW0501 switches on the Netra CP2140 host CPU card should actually be set in the default, non-high availability settings. Refer to the Netra CT Server Product Overview for more information.



1. Attach the antistatic wrist strap.

Refer to Section 1.2, Attaching the Antistatic Wrist Strap.

2. Locate the card slot where you will be installing the card.

FIGURE 6-1 shows the locations of these cards in the Netra CT 810 server. FIGURE 6-2 shows the locations of these cards in the diskfull Netra CT 410 server, and FIGURE 6-3 shows the locations of these cards in the diskless Netra CT 410 server.

3. Determine if you are installing a card in the front-access model or the rear-access model of the Netra CT server.

4. Remove the slot filler panel, if necessary.

The slot filler panel is secured to the card cage using two screws, one at the top of the filler panel, the other at the bottom. Store the slot filler panel in a safe place; you may have to use it again if you have to remove a card for an extended period of time.

5. Get the replacement card from the ship kit.

6. If you are installing a new alarm card, remove the blue protective film from the front of the alarm card, if necessary.



caution icon

Caution - You must remove the blue protective film from the front of card before installing it into the server. Failure to do so may keep the metal springfingers on the side of the alarm card from making contact with the metal panels on the server.



7. Perform any card-specific hardware procedures, if necessary.

For example, if you removed a PMC from a satellite CPU or I/O card, then you will want to install the PMC into the replacement satellite CPU or I/O card at this time. Refer to the documentation that you received with your satellite CPU or I/O card for more information.

8. Verify that the ejection levers on the card are unlocked.

You will not be able to install the card properly if the ejection levers are locked.

9. Keeping the card vertical, slide the card into the slot between the two guides.

The cuts in the handle of the card must align with the square cutouts in the slot. When the card is completely seated in the card cage, the two ejection levers should flip inward, and the notches in the ejection levers should fit smoothly in the rectangular cutouts in the bottom and top plates.

 FIGURE 6-8 Aligning the Card with the Card Cage Cutouts


10. Lock the ejection levers.

There are several different models of locking ejection levers, so the method you would use to lock the ejection levers will vary depending on the model of the ejection lever used on the card. Refer to the documentation that came with the card for instructions on locking the ejection levers.

11. Using a No. 2 Phillips screwdriver, tighten the two captive screws inside the card's ejection levers, one on top and one on the bottom.

Tighten the screws to a torque of 0.28 N.m (2.5 in.-lb).

 FIGURE 6-9 Tightening the Ejection Lever Captive Screws




Note - If you are hot-swapping an alarm card, it may take several minutes before the amber Okay to Remove LED goes off and the alarm card prompt comes up. Do not proceed with these instructions until the alarm card prompt comes up.



12. Log into the Netra CT server.

Refer to Section 5.2.1, Logging In to the Netra CT Server, then return to this procedure.

13. Determine the hot swap state for the slot that holds the card you just installed.

To determine the current hot swap state for the slots in your server, as root, enter:

# prtconf -v -P

The output is similar to the following (note that the following output is for a Netra CT 810 server; the output is similar for the Netra CT 410 server):

cphsc, instance #0
            System properties:
                name='instance' type=int items=1
                    value=00000000
                name='default-hotswap-mode' type=string items=1
                    value='full'
            Driver properties:
                name='AL-8-autoconfig' type=string items=1 dev=none
                    value='enabled'
                name='IO-7-autoconfig' type=string items=1 dev=none
                    value='enabled'
                name='IO-6-autoconfig' type=string items=1 dev=none
                    value='enabled'
                name='IO-5-autoconfig' type=string items=1 dev=none
                    value='enabled'
                name='IO-4-autoconfig' type=string items=1 dev=none
                    value='enabled'
                name='IO-3-autoconfig' type=string items=1 dev=none
                    value='enabled'
                name='IO-2-autoconfig' type=string items=1 dev=none
                    value='enabled'
               name='CPU-autoconfig' type=string items=1 dev=none
                    value='enabled'
               name='hotswap-mode' type=string items=1 dev=none
                    value='full'

14. Identify the attachment-point ID that corresponds to the slot where you inserted the card.

As root, enter:

# cfgadm

For a Netra CT 810 server, you should get feedback similar to the following:

Ap_Id				Type				Receptacle					Occupant					Condition
AL-8				mcd/fhs				connected					configured					ok
CPU				bridge/fhs				connected					configured					ok
IO-2				stpcipci/fhs				connected					configured					ok
IO-3				unknown				empty					unconfigured					unknown
IO-4				unknown				disconnected					unconfigured					unknown
IO-5				unknown				empty					unconfigured					unknown
IO-6				unknown				empty					unconfigured					unknown
IO-7				unknown				empty					unconfigured					unknown

For a Netra CT 410 server, you should get feedback similar to the following:

Ap_Id				Type				Receptacle					Occupant					Condition
AL-1				mcd/fhs				connected					configured					ok
CPU				bridge/fhs				connected					configured					ok
IO-2				unknown				disconnected					unconfigured					unknown
IO-4				unknown				disconnected					unconfigured					unknown
IO-5				stpcipci/fhs				connected					configured					ok

The attachment-point ID is shown in the first column of the readout; for example, the attachment-point ID for slot 4 in a Netra CT 810 server would be IO-4. Note that the information for the card installed in slot 4 in the example feedback shows it as unknown (Type), disconnected (Receptacle), unconfigured (Occupant), and unknown (Condition). This confirms that the slot has been set to basic hot swap and that the card in the slot has not yet been activated.

15. Connect the card with the cfgadm dynamic reconfiguration software:

# cfgadm -c connect ap_id

where ap_id is the attachment-point ID. For example, to connect the card in slot 4, as root, enter:

# cfgadm -c connect IO-4

16. Activate the card with the cfgadm (1m) utility:

# cfgadm -c configure ap_id

where ap_id is the attachment-point ID. For example, to activate the card in slot 4, as root, enter:

# cfgadm -c configure IO-4

If you were to enter the cfgadm pci command again at this point, you should see the fields changed for the card in slot 4:

Ap_Id				Type				Receptacle					Occupant					Condition
AL-8				mcd/fhs				connected					configured					ok
CPU				bridge/fhs				connected					configured					ok
IO-2				stpcipci/fhs				connected					configured					ok
IO-3				unknown				empty					unconfigured					unknown
IO-4				stpcipci/fhs				connected					configured					ok
IO-5				unknown				empty					unconfigured					unknown
IO-6				unknown				empty					unconfigured					unknown
IO-7				unknown				empty					unconfigured					unknown

17. Locate the LEDs on the system status panel for the card that you just inserted.

FIGURE 6-6 shows the LEDs on the Netra CT 810 server and FIGURE 6-7 shows the LEDs on the Netra CT 410 server.

18. Determine if the card has been activated.

Refer to TABLE 6-2 to determine if the card has been activated.

 

TABLE 6-2 CompactPCI Board Slot LED States and Meanings on the System Status Panel

Green Power LED state

Amber Okay to Remove LED state

Meaning

Action

Off

Off

The slot is empty or the system thinks that the slot is empty because the system didn't detect the card when it was inserted.

If there is a card installed in this slot, then one of the following components is faulty:

  • the card installed in the slot
  • the alarm card
  • the system controller board

Remove and replace the failed component to clear this state.

Blinking

Off

The card is coming up.

Wait several seconds for the card to completely come up. Do not remove the card in this state.

On

Off

The card is up and running.

No action necessary. Do not remove the card in this state.

Off

On

The card is powered off.

It is okay to remove the card in this state.

Blinking

On

The card is powered on, but it is offline for some reason (for example, a fault was detected on the card).

Wait several seconds to see if the green Power LED stops blinking. If it does not stop blinking after several seconds, enter cfgadm and verify that the card is in the unconfigured and disconnected state, then perform the necessary action, depending on the card:

  • Alarm card--It is okay to remove the alarm card in this state.
  • All other cards--Power off the slot through the alarm card software, then it is okay to remove the card.

On

On

The card is powered on and is in use, but a fault has been detected on the card.

Deactivate the card using one of the following methods:

  • Use the cfgadm -f -c unconfigure command to deactivate the card. Note that in some cases, this may cause the system to panic, depending on the nature of the card hardware or software.
  • Halt the system and power off the slot through the alarm card software.

The green Power LED will then give status information:

  • If the green Power LED goes off, then it is okay to remove the card.
  • If the green Power LED remains on, then you must halt the system and power off the slot through the alarm card software.

19. If the card has come up successfully, perform any card-specific software configuration procedures, if necessary.

20. Connect the cables to the card.

Tighten the screws on the cable to a torque of 0.23 N.m (2 in.-lb).

The following figures show the connectors for the cards available for the Netra CT servers:

For the connectors on the satellite CPU and I/O cards, refer to the documentation that you received with those cards.

Refer to Appendix A for connector pinouts for each card, if necessary.

 FIGURE 6-10 Connectors for the Single-Wide 6U Alarm Card


 FIGURE 6-11 Connectors for the Double-Wide 3U Alarm Card


 FIGURE 6-12 Connectors on the Host CPU Card



6.2 Front-Transition Card



Note - The host CPU front-transition cards are only hot-swappable as long as the host CPU card has been removed first.



If you encounter problems with the host CPU and/or the host CPU front transition card, you may not be able to determine which card of the two is causing the problems. Because of that, you might want to replace both cards when one of them fails.

6.2.1 Removing a Host CPU Front Transition Card

1. Attach the antistatic wrist strap.

Refer to Section 1.2, Attaching the Antistatic Wrist Strap.

2. Go to the front of the system and remove the host CPU card, if you have not done so already.

Refer to Section 6.1.2.1, Removing a Main Card to remove the host CPU card, then return here.

3. Locate the host CPU front transition card.

FIGURE 6-13 shows the location of the host CPU front transition card in a Netra CT 410 server.

 FIGURE 6-13 Host CPU Front Transition Card Location in a Netra CT 410 Server


4. Disconnect any cables attached to the host CPU front transition card.

5. Using a No. 2 Phillips screwdriver, loosen the captive screw inside the card's ejection lever.

6. Flip up on the ejector lever to unseat the card from the card cage (FIGURE 6-13).

7. Slide the card out of the slot and place it on the electrostatic discharge mat.

6.2.2 Installing a Host CPU Front Transition Card

1. Attach the antistatic wrist strap.

Refer to Section 1.2, Attaching the Antistatic Wrist Strap.

2. Flip the ejector lever up to a 90-degree angle (FIGURE 6-14).

 FIGURE 6-14 Proper Orientation for the Ejector Lever for Netra CT 410 Server Host CPU Front Transition Card


3. Keeping the card vertical, slide the card into the slot.

4. Press down on the ejector lever to seat the card into the card cage (FIGURE 6-13).

5. Using a No. 2 Phillips screwdriver, tighten the captive screw inside the card's ejection lever.

Tighten the screw to a torque of 0.28 N.m (2.5 in.-lb).

6. Make the necessary cable connections to the host CPU front transition card.

Tighten the screws on the cable to a torque of 0.23 N.m (2 in.-lb).

FIGURE 6-15 shows the connectors on the host CPU front transition card for the Netra CT 410 server. Note that the TTY A port is located on the host CPU card itself (COM port) for the Netra CT 410 server.

 FIGURE 6-15 Connectors on the Host CPU Front Transition Card (Netra CT 410 Server)


7. After you have replaced the host CPU front transition card, get the replacement host CPU card from the ship kit.

8. Go to the front of the server and install the host CPU card.

Refer to Section 6.1.2.2, Inserting a Main Card for those instructions.


6.3 Rear-Transition Cards



Note - The rear-transition cards are only hot-swappable as long as the accompanying main card has been removed first.



This section gives procedures for the installation, removal, and replacement of the following hot-swappable cards for rear-access models of the Netra CT 410 server and Netra CT 810 server:

6.3.1 Host CPU Rear Transition Card

This section tells how to remove and replace a host CPU rear transition card. This card is present only in the rear-access model of the Netra CT server.



Note - The procedures in this section apply only to the rear-access model of the Netra CT server; the procedures in this section do not apply to a front-access model of the Netra CT server.



Use only the Netra CT-supported host CPU rear transition card in the Netra CT server; do not use the XCP2040-TRN I/O transition card that is available with the Netra CP2140 board. Refer to FIGURE 6-16 to determine if the host CPU rear transition card you have is supported or unsupported on a Netra CT server.

 FIGURE 6-16 Supported and Unsupported Host CPU Rear Transition Card for a Netra CT Server

Figure showing the supported and non-supported host CPU rear transition card for a Netra CT server.

6.3.1.1 Removing a Host CPU Rear Transition Card

1. Attach the antistatic wrist strap.

Refer to Section 1.2, Attaching the Antistatic Wrist Strap.

2. Go to the front of the system and remove the host CPU card, if you have not done so already.

Refer to Section 6.1.2.1, Removing a Main Card to remove the host CPU card, then return here.

3. Go to the rear of the system and locate the host CPU rear transition card.

FIGURE 6-17 shows the location of the host CPU rear transition card on the Netra CT 810 server, and FIGURE 6-18 shows the location of the host CPU rear transition card on the Netra CT 410 server.

 FIGURE 6-17 Locating the Host CPU Rear Transition Card in the Rear-Access Model of a Netra CT 810 Server (Top View)


 FIGURE 6-18 Locating the Host CPU Rear Transition Card in the Rear-Access Model of a Netra CT 410 Server (Top View)


4. Unplug any cables attached to the host CPU rear transition card.

5. Using a No. 2 Phillips screwdriver, loosen the two captive screws inside the card's ejection levers, one on top and one on the bottom (FIGURE 6-4).

6. Press out on the ejection levers to unseat the card.

7. Slide the card out of the slot and place it on the electrostatic discharge mat.

6.3.1.2 Installing a Host CPU Rear Transition Card

1. Attach the antistatic wrist strap.

Refer to Section 1.2, Attaching the Antistatic Wrist Strap.

2. Get the replacement host CPU rear transition card from the ship kit.

3. Keeping the host CPU rear transition card vertical, slide the card into the slot in between the two guides (FIGURE 6-19).

The teeth in the handle of the card must align with the square cutouts in the slot. When the card is completely seated in the card cage, the two ejection levers should flip inward, and the teeth in the ejection levers should fit smoothly in the rectangular cutouts in the bottom and top plates. FIGURE 6-19 shows how to insert an I/O card into a slot; the same principal applies to a host CPU rear transition card.

 FIGURE 6-19 Aligning the Card with the Rear Card Cage Cutouts


4. Using a No. 2 Phillips screwdriver, tighten the two captive screws inside the card's ejection levers, one on top and one on the bottom (FIGURE 6-9).

Tighten the screws to a torque of 0.28 N.m (2.5 in.-lb).

5. Make the necessary cable connections to the host CPU rear transition card.

Tighten the screws on the cable to a torque of 0.23 N.m (2 in.-lb).

FIGURE 6-20 shows the connectors on the host CPU rear transition card.

 FIGURE 6-20 Connectors on the Host CPU Rear Transition Card


6. After you have replaced the host CPU rear transition card, get the replacement host CPU card from the ship kit.

7. Go to the front of the server and install the replacement host CPU card.

Refer to Section 6.1.2.2, Inserting a Main Card for those instructions.

6.3.2 Satellite CPU or I/O Rear Transition Card

6.3.2.1 Satellite CPU Rear Transition Card Set

The satellite CPU rear transition card set consists of two separate cards:

The satellite CPU card is installed from the front of the Netra CT server; however, no cables are connected to the satellite CPU card. It is the same satellite CPU card that is used in the front-access model of the Netra CT server.

The rear transition card extends the ports from the PMCs installed in the satellite CPU card to the PIMs installed in the satellite CPU rear transition card. The satellite CPU card must be installed in the same slot at the front of the server in order for the satellite CPU rear transition card to work. For example, if you install a satellite CPU rear transition card in I/O slot 3 at the rear of a Netra CT 810 server, you must also install the accompanying satellite CPU card in I/O slot 3 at the front of the server.

When one of the two cards fails, you may not be able to determine which of the two cards has failed. Because of this, you may want to replace both the satellite CPU card and the satellite CPU rear transition card. FIGURE 6-21 and FIGURE 6-22 give graphical representations of how the satellite CPU cards should align with the satellite CPU rear transition cards (RTCs). Note that, if you are facing the front of the server, the I/O slots read from left to right, whereas they read from right to left if you are facing the rear of the server.

 FIGURE 6-21 Supported Locations for Satellite CPU or I/O Rear Transition Card Sets in a Netra CT 810 Server (Top View)


 FIGURE 6-22 Supported Locations for Satellite CPU or I/O Rear Transition Card Sets in a Netra CT 410 Server (Top View)


6.3.2.2 I/O Rear Transition Card Set

The I/O rear transition card set consists of two separate cards:

The front I/O card contains the ASICs for the associated I/O card and is installed from the front of the server; however, no cables are connected to the front I/O card.

The I/O rear transition card extends the ports for a particular I/O card to the rear of the server. The I/O rear transition card and the front I/O card must be installed in the same slot at the front of the server in order for the I/O rear transition card to work. For example, if you install an I/O rear transition card in I/O slot 3 at the rear of a Netra CT 810 server, you must also install the accompanying front I/O card in I/O slot 3 at the front of the server.

When one of the two cards fails, you may not be able to determine which of the two cards has failed. Because of this, you may want to replace both the front I/O card and the I/O rear transition card. FIGURE 6-21 and FIGURE 6-22 give graphical representations of how the front I/O cards should align with the I/O rear transition cards (RTCs). Note that, if you are facing the front of the server, the I/O slots read from left to right, whereas they read from right to left if you are facing the rear of the server.

6.3.2.3 Removing and Installing Satellite CPU or I/O Rear Transition Card Sets

Removing a Satellite CPU or I/O Rear Transition Card

1. Attach the antistatic wrist strap.

Refer to Section 1.2, Attaching the Antistatic Wrist Strap.

2. Locate the card slot that holds the satellite CPU or I/O card.

3. Remove the satellite CPU or I/O card from the front of the Netra CT server.

Refer to Section 6.1.2.1, Removing a Main Card for those instructions, then return here.



caution icon

Caution - Do not proceed with these instructions unless you have removed the satellite CPU or I/O card from the front of the server using those instructions. If the I/O slot holding the satellite CPU or I/O card is set to basic hot swap, you will have to manually deactivate the I/O slot that holds the satellite CPU or I/O card. Removing the rear transition card without going through those procedures might panic or hang your system.



4. After you have removed the satellite CPU or I/O card from the front of the Netra CT server, go to the rear of the server and locate the rear transition card.

FIGURE 6-21 shows the slots available for the rear transition cards in a Netra CT 810 server and FIGURE 6-22 shows the slots available for the rear transition cards in a Netra CT 410 server.

5. Unplug any cables attached to the rear transition card, if necessary.

6. Using a No. 2 Phillips screwdriver, loosen the two captive screws inside the rear transition card's ejection levers, one on top and one on the bottom (FIGURE 6-4).

7. Unlock the ejection levers.

8. Press outward on the two ejection levers on the card to unseat the card from the card cage.

9. Carefully slide the rear transition card out of the slot and place it on the electrostatic discharge mat.

10. Perform any additional card-specific hardware procedures, if necessary.

For example, you may want to remove the PIM(s) from a faulty satellite CPU or I/O card and install it on the replacement card later on. Refer to the documentation that you received with your card for more information.

11. Secure blank filler panels over the empty I/O slots, if necessary.

If you are not going to replace the cards right away, you must install blank filler panels over the openings to ensure proper airflow in the system. The slot filler panels are secured to the card cage using two screws, one at the top of the filler panel, the other at the bottom.

Installing a Satellite CPU or I/O Rear Transition Card

1. Attach the antistatic wrist strap.

Refer to Section 1.2, Attaching the Antistatic Wrist Strap.

2. Remove the slot filler panel, if necessary.

FIGURE 6-21 shows the slots available for the rear transition cards in a Netra CT 810 server and FIGURE 6-22 shows the slots available for the rear transition cards in a Netra CT 410 server.

The slot filler panel is secured to the card cage using two screws, one at the top of the filler panel, the other at the bottom.

3. Get the replacement rear transition card from the ship kit.

4. Perform any card-specific hardware procedures, if necessary.

For example, if you removed the PIM(s) from a faulty satellite CPU or I/O card, then you will want to install the PIM(s) into the replacement satellite CPU or I/O card at this time. Refer to the documentation that you received with your satellite CPU or I/O card for more information.

5. Verify that the ejection levers are unlocked.

You will not be able to install the card properly if the ejection levers are locked.

6. Keeping the card vertical, slide the rear transition card in between the two guides into the slot (FIGURE 6-19).

The teeth in the handle of the card must align with the square cutouts in the I/O slot. When the card is completely seated in the card cage, the two ejection levers should flip inward, and the teeth in the ejection levers should fit smoothly in the rectangular cutouts in the bottom and top plates.

7. Lock the ejection levers.

The method you use to lock the ejection levers varies depending on the model of the ejection lever used on the card. Refer to the documentation that came with the I/O card for instructions on locking the ejection levers.

8. Using a No. 2 Phillips screwdriver, tighten the two captive screws inside the card's ejection levers, one on top and one on the bottom.

Tighten the screws to a torque of 0.28 N.m (2.5 in.-lb).

9. Plug all appropriate cables into the rear transition card.

Tighten the screws on the cable to a torque of 0.23 N.m (2 in.-lb). Refer to the documentation that you received with the card for more information.

10. Go to the front of the server and install the satellite CPU or I/O card in the Netra CT server.

Refer to Section 6.1.2.2, Inserting a Main Card for those instructions.

6.3.3 Alarm Rear Transition Card

The alarm rear transition card for the Netra CT 810 server consists of two separate cards:

When one of the two cards fails, you may not be able to determine which of the two cards has failed. Because of this, you may want to replace both the alarm card and the alarm rear transition card.

The alarm card is installed from the front of the Netra CT server. It is the same alarm card that is used in the front-access model of the Netra CT server.

The alarm rear transition card extends the ports on the alarm card installed at the front of the server to the alarm rear transition card installed at the rear of the server. The alarm card must be installed in the front of the server in order for the alarm rear transition card to work.

6.3.3.1 Removing an Alarm Rear Transition Card

1. Attach the antistatic wrist strap.

Refer to Section 1.2, Attaching the Antistatic Wrist Strap.

2. Remove the alarm card from the front of the Netra CT server.

Refer to Removing a Main Card for those instructions, then return here.



caution icon

Caution - Do not proceed with these instructions unless you have removed the alarm card from the front of the server using those instructions. If the I/O slot holding the alarm card is set to basic hot swap, you will have to manually deactivate the I/O slot that holds the alarm card, and removing the alarm rear transition card without going through those procedures might panic or hang your system.



3. After you have removed the alarm card from the front of the Netra CT server, go to the rear of the server and locate the alarm rear transition card.

FIGURE 6-23 shows the slot available for the alarm rear transition card in a Netra CT 810 server and FIGURE 6-24 shows the slot available for the alarm rear transition card in a Netra CT 410 server.

 FIGURE 6-23 Supported Location for the Alarm Rear Transition Card in a Netra CT 810 Server (Top View)


 FIGURE 6-24 Supported Location for the Alarm Rear Transition Card in a Netra CT 410 Server (Top View)


4. Unplug any cables attached to the alarm rear transition card, if necessary.

5. Using a No. 2 Phillips screwdriver, loosen the two captive screws inside the card's ejection levers, one on top and one on the bottom.

6. Unlock the ejection levers on the card.

7. Press outward on the two ejection levers on the card to unseat the card from the card cage.

8. Slide the card out of the slot and place it on the electrostatic discharge mat.

9. Secure blank filler panels over the empty I/O slot, if necessary.

If you are not going to replace the alarm card and alarm rear transition card right away, you must install blank filler panels over the openings to ensure proper airflow in the system. The slot filler panels are secured to the card cage using two screws, one at the top of the filler panel, the other at the bottom.

6.3.3.2 Installing an Alarm Rear Transition Card

1. Attach the antistatic wrist strap.

Refer to Section 1.2, Attaching the Antistatic Wrist Strap.

2. Remove the slot filler panel, if necessary.

FIGURE 6-23 shows the slot available for the alarm rear transition card in a Netra CT 810 server and FIGURE 6-24 shows the slot available for the alarm rear transition card in a Netra CT 410 server.

The slot filler panel is secured to the card cage using two screws, one at the top of the filler panel, the other at the bottom.

3. Get the replacement alarm rear transition card from the ship kit.

4. Remove the blue protective film from the front of the alarm rear transition card.



caution icon

Caution - You must remove the blue protective film from the front of card before installing it into the server. Failure to do so may keep the metal springfingers on the side of the alarm card from making contact with the metal panels on the server.



5. Verify that the ejection levers are unlocked.

You will not be able to install the card properly if the ejection levers are locked.

6. Keeping the card vertical, slide the card into the slot between the two guides (FIGURE 6-19).

The teeth in the handle of the card must align with the square cutouts in the I/O slot. When the card is completely seated in the card cage, the two ejection levers should flip inward, and the teeth in the ejection levers should fit smoothly in the rectangular cutouts in the bottom and top plates. FIGURE 6-8 shows how to insert an I/O card into a slot; the same principal applies to an alarm rear transition card.

7. Using a No. 2 Phillips screwdriver, tighten the two captive screws inside the card's ejection levers, one on top and one on the bottom.

Tighten the screws to a torque of 0.28 N.m (2.5 in.-lb).

8. Lock the ejection levers on the card.

9. Plug all appropriate cables into the alarm rear transition card.

Tighten the screws on the cable to a torque of 0.23 N.m (2 in.-lb).

 FIGURE 6-25 Connectors on the Alarm Rear Transition Card


10. Get the replacement alarm card from the ship kit.

11. Verify that the ejection levers are unlocked.

You will not be able to install the card properly if the ejection levers are locked.

12. Go to the front of the server and install the replacement alarm card in the Netra CT server.

Refer to Inserting a Main Card for those instructions.


1 (Footnote) The host CPU card is hot-swappable only if the alarm card and system controller board are also installed in the Netra CT server.
2 (Footnote) The alarm card is hot-swappable only if the host CPU card and system controller board are also installed in the Netra CT server.
3 (Footnote) The host CPU card is only hot-swappable if the alarm card is also installed in the server.
4 (Footnote) FIGURE 6-10 shows the connectors for a single-wide 6U alarm card installed in a Netra CT 810 server. The location of a single-wide 6U alarm card installed in a diskless Netra CT 410 server is different, but the connectors are the same.
5 (Footnote) The only cables that should be connected to the host CPU card would be a cable connected to the TTY A port for the front-access model of the Netra CT 410 server and the Ethernet cable connected to the Ethernet A port only for front-access Netra CT servers. All other models of servers should use the TTY A and Ethernet A ports on the host CPU front or rear transition card.