Oracle FS1-2 Flash Storage System
 
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Instructions on how to replace CPU and/or Heatsink in an FS1-2 Controller.

In this Document

Goal

Solution

References

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

Applies to:

Goal

The purpose of this document is to outline the steps required to replace an FS1-2 Controller CPU/Heatsink using the Guided Maintenance.

Solution

DISPATCH INSTRUCTIONS

- WHAT SKILLS DOES THE FIELD ENGINEER/ADMINISTRATOR NEED:

Product knowledge, FS1-2 Flash Storage System

TIME ESTIMATE: 75 minutes

TASK COMPLEXITY: 3

FIELD ENGINEER/ADMINISTRATOR INSTRUCTIONS:

PROBLEM OVERVIEW:

What: A Controller CPU in an FS1-2 has failed and needs to be replaced.  Heatsinks typically need replacement only when physically damaged (broken screw or bent fin) or when the CPU overheats.

Where: Failed CPUs will generate a System Alert that identifies it's location.  There is also the Fault Remind button on the motherboard.  Heatsink replacements can be identified by physical damage or it's associated CPU has had heat damage.

Why: An FS1-2 Controller CPU has failed or it's Heatsink is broken.

NOTE: This Action Plan requires the following 3 items.  They come as part of the CPU FRU or can be ordered separately by the FE:

• CPU Installation/Removal Tool - part # 7026168
• Thermal Grease Kit - part # 350-1271 and contains:
• Thermal Grease Syringe - 310-0065
• Alcohol wipes - 250-1802

There is also an animation video that details the replace procedure available at the Oracle Learning Center.

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

The Controller with the CPU failure will have a warning status.  The other Controller must have a normal status as this procedure requires a Controller failover so that the problem Controller can be powered off in order to replace the failed CPU/Heatsink.

 QRC for Heatsink procedure:                                               QRC for CPU procedure:

WHAT ACTION DOES THE FIELD ENGINEER/ADMINISTRATOR NEED TO TAKE:

1. If the Controller is disabled, run the following commands to clear the failure history so when the power is re-applied, the Controller will boot:
   
   
   fscli login
   fscli controller -modifyAgentHaFlags -controller <controller ID> -clearWsCounter
   fscli controller -reenable -controller <controller ID>
   fscli controller -rejoin -controller <controller ID
     
   
   NOTE: Above commands require usage of the Oracle Support login of "pillar" to execute.
     
   
   
2. Prepare FS1-2 for service procedure.
1. Disable Call-Home to prevent spurious alerts (see <Document 1942676.1> FS System: How to disable Call Home to prevent Automatic Service Request ASR Generation).
2. Use ESD precautions.
3. Log into Oracle FS System Manager to access Guided Maintenance:
1. Select System tab
2. In the navigation tree, expand Hardware and select Controllers
3. In the main window, double click on the Controller with the failed CPU/Heatsink.
4. In the pop-up Modify window, select the failed CPU and then click on Replace Component.
5. Follow the steps in Guided Maintenance to identify and place the Controller offline.
   
   
3. Access the CPU/Heatsink.
1. Deploy the anti-tip legs in the front of the rack.
2. Slide the Controller into the service position.
3. Unplug both power cords.
4. Loosen the two captive screws in the rear of the Top Cover.
5. Slide the Top Cover back and remove.
6. Unplug the cables connected to the Drive Compartment - suggest they be labeled to make reconnections easier.
7. Loosen the four captive screws that secure the Drive Compartment to the Controller chassis and lift it into the service position.
8. Remove the clear plastic Air Duct.
   
   
4. Remove Heatsink
1. If CPU is defective, use FAULT REMIND button to confirm CPU location otherwise confirm the broken or damaged Heatsink visually.
2. While gently pushing down on the Heatsink, loosen 4 screws 1.5 turns each using a crossing pattern until all the screws are free.
3. Gently rotate the Heatsink back and forth slightly while pulling up to free it from the CPU.
4. Use a supplied alcohol pad, clean the Heatsink bottom and CPU top.  Be VERY careful not to damage the CPU pins or socket by applying too much pressure.  Avoid spreading the thermal grease to other surfaces .
5. If only replacing the Heatsink, skip to step 7, otherwise proceed to step 5.
   
   
5. Remove failed CPU.
1. You must use a CPU Installation/Removal tool 7026168 to extract the CPU
2. Viewing from the front, disengage the right CPU Cover Retaining Levers by pushing down on them then pushing them away from the CPU.  Repeat for left lever.  Be sure to move the levers all the way back to allow better access to the CPU Cover and CPU itself.
3. Open the CPU Cover towards the right side to expose the CPU.
4. Press the round button at the top center of the tool to unlock it.  Then place it over the CPU using the green arrow to align it properly (see video above).
5. Lock the tool to the CPU by pushing the tab next to the center button on the top of the tool.  Once CPU is locked to the tool lift the tool straight up.
6. Turn tool over to expose the CPU and gently press the round button again to unlock it.
7. Grab the CPU by the sides and remove it from the tool.
   
   
6. Install replacement CPU.
1. Lock the replacement CPU into the tool by carefully placing it in the tool and then pushing the locking tab.  Be sure to align the CPU properly using the triangle on the CPU and tool (see video).
2. Turn the tool over and carefully align it with the CPU socket on the motherboard.
3. Press the center round button on top of the tool to unlock the CPU.  Do NOT press on the CPU itself.
4. Lift the CPU tool free and clear of the Controller.
5. Lower the CPU Cover back into place.
6. Re-engage the left lever back into place and then the right lever.
   
   
7. Install Heatsink.
1. Using the syringe it comes in, apply ~0.1 ml of thermal grease in the center of the top of the CPU.  Do NOT spread it around.
2. Verify the underside of the Heatsink is clean and if not reclean it with alcohol pad.
3. Carefully position the Heatsink over the CPU by aligning the captive mounting screws to their holes in the motherboard.
4. Once the Heatsink has made contact with the thermal grease, keep any sideways movement to a minimum.
5. Using a crossing pattern, tighten each screw 0.5 turns until all four are securely fastened.
   
   
8. Reassemble Controller components.
1. Reinstall the clear plastic Air Duct.
2. Lower the Drive Compartment and secure the four captive screws.
3. Reconnect the cabling to the Drive Compartment.
4. Close the Top Cover being certain to catch the mushroom tabs in the front to secure it.  Failure to do so will inhibit the Controller being slid back into the rack.
5. Tighten the two screws in the rear.
   
   
9. Return Controller to FS1-2 System.
1. Plug in both power cords.
2. Return the Controller to the rack position.
3. Return the anti-tip legs to their normal position.
4. When finished, re-enable Call-Home.

OBTAIN CUSTOMER ACCEPTANCE

WHAT ACTION DOES THE FIELD ENGINEER/ADMINISTRATOR NEED TO TAKE TO RETURN THE SYSTEM TO AN OPERATIONAL STATE:

 Confirm that the replacement CPU/Heatsink was successful - the System Alert associated with it should be gone and the FS1-2 should be normal/green.

Note: because the Controller must cold start, it may take as long as 15 minutes for the boot process to complete and the Controller to return to a normal status.

REFERENCE INFORMATION:

 From the Oracle Help Center: http://docs.oracle.com/en/storage/#fla select the Oracle Flash System Documentation Library for more information.

References

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