How to Remove and Replace a Netra X4250 Power Supply Unit

Asset ID:	1-71-1597458.1
Update Date:	2016-09-05
Keywords:

Solution Type Technical Instruction Sure

Solution 1597458.1 : How to Remove and Replace a Netra X4250 Power Supply Unit

Applies to:

Sun Netra X4250 Server - Version Not Applicable to Not Applicable [Release N/A]
Information in this document applies to any platform.

Goal

How to Remove and Replace a Netra X4250 Power Supply Unit.

Solution

DISPATCH INSTRUCTIONS

- WHAT SKILLS DOES THE ENGINEER NEED: Basic Sun hardware FE skills, familiarity or training for Netra X4250 platform.

- TIME ESTIMATE: 15 minutes

- COMPLEXITY: 0

DELIVERY REQUIREMENT: Schedule with maintenance window within contractual terms.

FIELD ENGINEER INSTRUCTIONS

WHAT STATE SHOULD THE SYSTEM BE IN TO BE READY TO PERFORM THE RESOLUTION ACTIVITY? :
Server has two power supply redundancy. The server can remain running if replacing only one power supply. If, not Customer should shut the operating system down gracefully (using "init 0").

WHAT ACTION DOES THE ENGINEER NEED TO TAKE:

The server’s redundant hot-swappable power supplies enable you to remove and replace a power supply without shutting the server down, provided that the other power supply is online and working.
The following LEDs are lit when a power supply fault is detected:
■ Front and rear Service Required LEDs
■ Amber Fault LED on the faulty power supply
If a power supply fails and you do not have a replacement available, leave the failed power supply installed to ensure proper air flow in the server.

Step I: Remove a Power Supply

1. Identify which power supply requires replacement. A lighted amber LED on a power supply indicates that a failure was detected. You can also use the ILOM show faulty command at the sc> prompt.

2. At the -> prompt, issue the stop /SYS/PSn command. The stop command indicates if it is okay to perform a hot-swap of a power supply. This command does not perform any action, but it provides a warning if
the power supply should not be removed because the other power supply is not providing power to the server.
For example:

-> stop /SYS/PSn
Are you sure you want to remove PSn [y/n]? y
<PSn> is safe to remove.

In this command, PSn is the identifier for the power supply you plan to remove, either PS0 or PS1.

3. Disconnect the power cord from the faulty power supply.

4. Grasp the power supply handle and push the power supply latch to the right.

5. Pull the power supply out of the chassis.

Step II: Install a Power Supply

1. Remove the replacement power supply from its packaging and place it on an antistatic mat.

2. Align the replacement power supply with the empty power supply bay.

3. Slide the power supply into the bay until it is fully seated.

4. Reconnect the power cord to the power supply.

5. Verify that the amber LED on the replaced power supply and the service required LEDs are not lit.

6. At the -> prompt, type the show /SYS/PSn command to verify the status of the power supplies. In this command, PSn is the identifier for the power supply you plan to remove, either PS0 or PS1.

OBTAIN CUSTOMER ACCEPTANCE

WHAT ACTION DOES THE CUSTOMER NEED TO TAKE TO RETURN THE SYSTEM TO AN OPERATIONAL STATE:
Restart system and have the System administrator verify functionality of system.

REFERENCE INFORMATION:
Sun Netra X4250: http://docs.oracle.com/cd/E19790-01/820-4056-11/820-4056-11.pdf

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