How to Replace a SPARC T7-2 Cable Management Arm (CMA)

Asset ID:	1-71-1965356.1
Update Date:	2017-11-15
Keywords:

Solution Type Technical Instruction Sure

Solution 1965356.1 : How to Replace a SPARC T7-2 Cable Management Arm (CMA)

Applies to:

SPARC T7-2 - Version All Versions and later
Information in this document applies to any platform.

Goal

How to Replace a SPARC T7-2 Cable Management Arm (CMA)

Solution

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ESD Caution:

Circuit boards and drives contain electronic components that are extremely sensitive to static electricity. Ordinary amounts of static electricity from clothing or the work environment can destroy the components located on these boards. Do not touch the components along their connector edges.
Use a Antistatic Wrist strap. Attach one end of the strap to your wrist and the other end to the chassis, depending on what type of strap you use, with the adhesive end or the metal plug.
Use an Antistatic Mat. Place ESD-sensitive components such as motherboards, memory, and other PCBs on an antistatic mat.

Contamination Caution:

Dust particles of packaging material are number one cause of datacenter contamination. Make sure to remove all packaging material, up to the ESD safe packaging material, while still being outside the datacenter.

DISPATCH INSTRUCTIONS

WHAT SKILLS ARE REQUIRED?: No special skills required, Customer Replaceable Unit (CRU) procedure

TIME ESTIMATE: 60 minutes

TASK COMPLEXITY: 0

REMOVAL/REPLACEMENT INSTRUCTIONS:

PROBLEM OVERVIEW: SPARC T7-2 Cable Management Arm (CMA) Replacement

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

DAMAGE ALERT: Perform a visual inspection of the replacement part to make sure that there are no damaged components, connectors, bent pins, damaged packages during shipping, etc. If the part is damaged, don't install it into the system, order a new part. Handle with caution and package carefully the return part to avoid any damages during shipping.

Caution – Support the CMA during this installation. Do not allow the assembly to hang by its own weight until it is secured by all three attachment points.

Two people are needed for this procedure, one to move the server in and out of the rack, and one to observe the cables and CMA.

If the system is still up and functioning, the customer should perform an orderly and graceful shutdown of applications and OS. Then power off the server and remove the AC power cords from the system. A data backup is not a prerequisite but is a wise precaution.
NOTE: For ALL scenarios where an AC power down or AC power cycle is required for a T7-x server, please always use the steps in doc 1571054.1 prior to physically removing AC power cables from the server.

WHAT ACTIONS ARE REQUIRED?:

1. Remove the tape from the CMA rail extension, and remove the CMA rail extension.
2. Attach the CMA rail extension to rear left slide rail. At the rear of the rack, plug the CMA rail extension into the end of the left sliding rail assembly. The tab at the front of the rail extension clicks into place.

3. Insert the smaller extension into the clip located at the end of the mounting bracket.
Slide the smaller extension into the square hole on the middle-in-width of the clip that is located at the end of the mounting bracket.

4. Insert the larger extension into the end of the right sliding rail.

5. Insert the hinged plastic connector at the left side of the CMA fully into the CMA rail extension.
The plastic tab on the CMA rail extension locks the hinged plastic connector in place.

OBTAIN CUSTOMER ACCEPTANCE

WHAT ACTIONS ARE REQUIRED TO RETURN THE SYSTEM TO AN OPERATIONAL STATE?:

You should Perform this procedure both before and after you install the server cables in the CMA. Performing the procedure before the CMA contains cables helps ensure that it extends and contracts smoothly before the cables are added.

1. For a free-standing rack, deploy the antitilt bar.
2. Unlock the slide lock buttons at the right and left sides of the chassis.

3. If the server cables have been placed inside the CMA, inspect them for binding or kinks.
4. Slowly pull the server out of the rack until the slide rails reach their stops.
5. Verify that the CMA extends fully and does not bind in the slide rails.
6. Verify that the server extends fully and locks in the maintenance position.
7. Pull both slide rail release buttons toward you simultaneously and slide the server back into the rack. The server should slide smoothly into the rack without binding.

8. Verify that the CMA retracted without binding.
9. Adjust the cable straps and CMA as required to secure the cables.

PARTS NOTE:
https://support.oracle.com/handbook_private/Systems/SPARC_T7_2/components.html#Rack

REFERENCE INFORMATION:

SPARC T7-2 Service Manual: http://docs.oracle.com/cd/E54983_01/html/E54987/index.html

References

<NOTE:1571054.1> - Performing an AC power cycle on the T3/T4/T5/S7/T7/T8 Servers

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