Sun Enterprise 450 Server
 

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Goal

Solution

Oracle Confidential INTERNAL - Do not distribute to customer (OracleConfidential).
Reason: FRU CAP

Applies to:

Goal

450 Power Supply

Solution

DISPATCH INSTRUCTIONS

WHAT SKILLS DOES THE ENGINEER NEED:(IS A SITE ENGINEER AVAILABLE?)

SE450 product knowledge/training to be qualified as Oracle service personel.

TIME ESTIMATE: 45 minutes

TASK COMPLEXITY: 1

FIELD ENGINEER INSTRUCTIONS

PROBLEM OVERVIEW: Power Supply Failure

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

A data backup is not a prerequisite but is a wise precaution.

If no redundant power is available shutdown system and power off unit. Otherwise the server's redundant hot-swappable power supplies enable you to remove and replace a power supply without shutting the server down (while server is running), provided that the other power supply is online and working.

NOTE: 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.

NOTES:
N+1 Power Supply Redundancy:
The system can accommodate a maximum of three power supplies. Most system configurations can operate with only one power supply installed.

In this case, a second supply can be used to provide N+1 redundancy, allowing the system to continue operating should one of the power supplies fail.

Two supplies will provide enough power for a heavily configured system. In this case, a third supply can be added for redundancy. With three power supplies installed in the system, even a heavily configured machine can continue full operation during removal or replacement of one of the supplies.

Hot-Swappable Power Supplies

Power supplies in a redundant configuration feature a “hot swap” capability. You can remove and replace a faulty power supply without turning off the system power or even shutting down the operating system. The power supplies are easily accessed from the rear of the system, without the need to remove system covers.

WHAT ACTION DOES THE ENGINEER NEED TO TAKE:

Note – When removing a hot-swappable power supply, do not disengage and reengage the supply in rapid succession. Always remove a supply completely before reinserting the same supply or a replacement supply. Rapid seating and unseating of power supplies will result in false error conditions.

Power Supply 2 is the TOP Power Supply Unit

Power Supply 1 is the MIDDLE Power Supply Unit

Power Supply 0 is the BOTTOM Power Supply Unit

A) Remove a Power Supply

1. Locate the Power Supply to be replaced, and proceed to loosen the two large captive screws that secure the power supply to the chassis rear panel.

2. Push the power supply handle down to disengage the power supply from its connector.

3. Slide the power supply out of the power supply bay.

4. If you are not replacing the power supply immediately, install a power supply filler panel:

a. Insert the filler panel into the bay.

b. Fasten the two Phillips screws that secure the filler panel to the power supply bay.

B) Install a Power Supply

1. If you are upgrading your system with an additional power supply, remove the filler panel from the desired power supply bay:

a. Remove the two Phillips screws that secure the filler panel to the power supply bay.

b. Partially pry the filler panel out of the bay, using the small slot at the upper left. Use a flat-blade screwdriver. The filler panel is like a box, and extends into the bay.

c. Pull the filler panel the rest of the way out of the bay.

2. Keeping the handle in the down position, slide the new power supply almost all the way into the power supply bay, until the hooks on the end of the handle reach the back of the chassis.

3. Lift up the power supply handle to move the power supply the rest of the way into the bay. This also engages the power supply with its connector.

4. Tighten the two large captive screws that secure the power supply to the chassis rear panel.

OBTAIN CUSTOMER ACCEPTANCE
WHAT ACTION DOES THE CUSTOMER NEED TO TAKE TO RETURN THE SYSTEM TO AN OPERATIONAL STATE:

If the replacement was a hot swap on a redundant configuration, the system should be operational and need no further work.

If the replacement was in a system with a single power supply, restart software applications per applicable administration guides to resume system operation.

Verify with prtdiag


PARTS NOTE:

A memory latch remembers the power supplies last power On/Off state. When a power supply that was Off is installed in a system that is On, the supply will remain Off. To turn on the power supply, rotate the front panel keyswitch from the Power-On position to the Diagnostic position, then back to the Power-On position, or press the keyboard Power-On key.

REFERENCE INFORMATION:

For more detail, refer to:

http://support.us.oracle.com/handbook_internal/Devices/DC_Power/DCPOWER_Zytec_1359_605W.html

Documentation related to the Enterprise 450 Server:

http://docs.oracle.com/cd/E19088-01/450.srvr/index.html

Details relating to Power in the Enterprise 450 Server can be found in the following Document at the above Documentation url:

Ultra Enterprise 450 Server Owner's Guide - 805-0429-10

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