Netra Modular System
 

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In this Document

Goal

Solution

Oracle Confidential PARTNER - Available to partners (SUN).
Reason: CAP document

Applies to:

Goal

How to Replace an NMS (Netra Modular System) FMM (Frame Management Module)

Solution

CAP PROBLEM OVERVIEW:

DISPATCH INSTRUCTIONS

WHAT SKILLS DOES THE ENGINEER NEED: Netra Modular System Training

TIME ESTIMATE: 90 minutes using two FEs.

TASK COMPLEXITY: 4

FIELD ENGINEER INSTRUCTIONS

It is recommended before arriving on site to review the process in the service manual supplement as it contains graphic and additional information that is too large or too complex to fix into this text only CAP.
Reference:
  Replacing the FMM
  http://docs.oracle.com/cd/E59318_01/html/E59323/z40001011908168.html#scrolltoc

Tools needed:
#1 Phillips screwdriver
#3 Phillips screwdriver - Recommend it be magnetic and suggest 6" minimum shaft, 12-16" works best on this system.
A flat blade screwdriver -  3/16" - 8 to 12" shaft or metric equivalent.
Recommended if possible:  A small chair to sit on.

Two persons are needed for the removal and installation procedures.

WHAT STATE SHOULD THE SYSTEM BE IN TO BE READY TO PERFORM THE RESOLUTION ACTIVITY? :

FMM replacement does not impact node or data network operation. You can replace it on a live system.
However, due to the complexity of this operation, you might want to replace it during a maintenance or non-peak usage period.
It is easiest to access the FMM from the front and above when no compute nodes are above it.  Nodes above can be powered off and removed if additional access space is needed.

NOTE:  DO NOT RECONNECT THE POWER CORDS UNTIL INSTRUCTED.

Remove the FMM

Caution - The FMM is on a slide rail like the nodes. You must remove the FMM completely from the modular system. Do not slide the FMM out partially and let it hang in the rails. Two persons are needed for the removal and installation procedures.
Tip - Obtain tools needed: a No. 1 and No. 3 Phillips screwdriver and a long, thin, flat-head screwdriver.

1. Follow safety and ESD precautions.

2. Locate the FMM.
The FMM is located at slot 19 in the modular system. There is a cable routing space above it in slot 20. Slot numbers are marked on the frame both front and rear.

3. If the FMM is configured as an ASR asset, deactivate it.

4. From the front of the modular system:
a. Remove the filler panels at slots 19 and 20.
b. Using a No. 1 Phillips screwdriver remove the filler panel support brackets at slot 19, and save the screws.

Note - The screws are located inside, on rails about 2 ½ inches from the front edge of the rail. They are not captive, so take care not to drop or lose them.

c. Using a No. 3 Phillips screwdriver, remove the filler and node support brackets at slot 20, and save the screws.
d. Disconnect all Ethernet cables.

Note - Cables are labeled U19, PT-xx, where xx is the port number.
Tip - It's helpful to tie all of the Ethernet cables together (for example, with an old cable), and wrap the other end up and around the upper-left door hinge. This action will prevent the cables from falling down and will keep them on top of the FMM when it is replaced.

5. From the rear of the modular system:
  a. Using a No. 3 Phillips screwdriver, remove the node support bracket at slot 20 and save the screws

Note - Notice the orientation. The shelf is on top.

  b. Disconnect the power cables from each side of the FMM.
  c. Remove all ties holding down the FBH cables to the tray.
  d. Using a long, thin, flat-head screwdriver, disconnect the FBH connectors from the FMM chassis.
  e. Disconnect the DB-9 LED panel cable from the DB-9 port.
  f. Disconnect the Cat-5e cable from the console port.

6. Arrange for an assistant to help you remove and carry the FMM to an antistatic equipped workbench.

Caution - You must completely remove the FMM. The modular system rails do not support partial removal and service. Partially removing the FMM and letting it hang in the rails can damage the rails and possibly the FMM.

7. From the front of the modular system:
  a. Using a No. 1 Phillips screwdriver, loosen the thumbscrews on the front of the FMM slides.
  b. Using the D-shaped metal handles, pull the FMM straight toward you a few inches.

Caution - Be careful to avoid pinching your fingers with the D-shaped metal handles.

  c. Using two persons, pull the FMM completely out, with each person holding one side.
  d. Place the FMM on a workbench that has antistatic protection.

8. Remove the FBH tray from the slides.
9. Remove the rail slides from the faulty FMM, then install them on the replacement FMM.

Note - The rail slides have a spring-loaded clip that holds the rails in place. Move the locking clip in an outward motion to release the FMM locking pin from the rail slides. Be careful not to over bend the locking clip.

10. Insert and align the FBH tray on the slides of the replacement FMM, then tighten the thumbscrews.
11. Install the replacement FMM.

Note - Do not connect the power cords until completing the other steps of installing the FMM.

Install the FMM

Caution - Two persons are required to install the FMM, to prevent damage to the equipment and personnel.
Caution - Make sure that the Ethernet cables are on top of the FMM when installing the FMM.

1. Follow safety and ESD precautions.

2. At the front of the modular system, insert the replacement FMM to about six inches less than full installation.

3. From the rear of the modular system:
  a. Lift all cables that will connect to the FMM up onto the FBH tray.
  b. Pull the FMM into the frame the rest of the distance, to completely install it.

4. From the front of the modular system:
  a. Tighten the slide screws.
  b. Attach all the blue cables, then the orange Ethernet cables.

Note - Cables are labeled U19, PT-xx - where xx is the port number.
Caution - Reconnecting the Ethernet cables incorrectly will cause connectivity issues and unpredictable system behavior.

  c. Using a No. 1 Phillips screwdriver, install the filler panel support brackets at slot 19.
  d. Using a No. 3 Phillips screwdriver, reinstall the node support bracket and filler panel support brackets at slot 20 with the saved screws.
Make sure that the orientation is correct, with the shelf on top.
  e. Install the filler panel at slot 19.
  f. Install the filler panel at slot 20.

5. From the rear of the modular system:
  a. Attach the DB-9 LED panel cable to the DB-9 port.
  b. Attach the Cat-5e cable to the console port.
  c. Attach the FBH cables to the correct ports as follows:
    i. Review the labels on the two FBH cable pairs.
       One pair of cables routes to the upper section (above the FMM) of the rack and will connect to the top ports on the FMM. The other pair of cables routes to the lower section of the rack (below the FMM) and will connect to the bottom two ports on the FMM. 
    ii. From the lower cable pair, locate the cable labeled "U19, PT-FBH 2/3," and connect it to port 2.
    iii. Locate the remaining lower cable labeled "U19, PT-FBH 1/4," and connect it to port 4.
    iv. From the top cable pair, locate the cable labeled "U19, PT-FBH 1/4," and connect it to port 1.
    v. Locate the remaining top cable labeled "U19, PT-FBH 2/3," and connect it to port 3.
  d. Attach ties to secure the FBH cables to the tray.
  e. Attach the power cables on each side.
  f. Using a No. 3 Phillips screwdriver, reinstall the support bracket at slot 20 with the saved screws.

Note - After power on, FMM automatically detects and programs the frame configuration based on the backup copies stored in the two system management software PCB and the FMM switch.

  g. If it is an ASR asset, activate the FMM.

  h. If you want to view the FMM SN, from the FMM CLI, type: show /SYS component_serial_number.

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