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In this Document

Goal

Solution

References

Oracle Confidential PARTNER - Available to partners (SUN).
Reason: Exadata internal only for Oracle support engineers use and approved HW partners

Applies to:

Goal

How to Replace an Exadata X7-2 Storage Cell Server Temperature Sensor.

Solution

DISPATCH INSTRUCTIONS

WHAT SKILLS DOES THE FIELD ENGINEER/ADMINISTRATOR NEED:
Exadata X7-2 Training

TIME ESTIMATE: 60 minutes

TASK COMPLEXITY: 2

FIELD ENGINEER/ADMINISTRATOR INSTRUCTIONS

PROBLEM OVERVIEW: An Exadata X7-2 Storage Cell Server Temperature Sensor needs replacement

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

IMPORTANT NOTE TO TSC ENGINEER:  CUT & PASTE the “CUSTOMER ACTIVITY” sections of the Pre-Replacement and Post-Replacement steps into a SR Note and ensure the customer is aware to do these steps prior to the scheduled field engineer activity, and during and after the replacement activity.

CUSTOMER ACTIVITY:

Shutdown of the storage cell is required prior to the part replacement:

Complete Steps 1 to 6 of Note ID 1188080.1 “Steps to shut down or reboot an Exadata storage cell without affecting ASM”.

Where noted, the SQL, CellCLI and commands under ‘root’ should be run by the Customers DBA, unless the Customer provides login access to the Field Engineer

These steps are also provided in the documentation:
   https://docs.oracle.com/cd/E80920_01/DBMMN/maintaining-exadata-storage-servers.htm#DBMMN21128

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

Prepare the Server for Service

The customer should have already prepared the server and powered it off.  If not, provide them the instructions in the previous section.

1. Extend the server to the maintenance position
2. Disconnect the power cords from the power supplies.
3. Attach an anti-static wrist strap to your wrist and to a metal area on the chassis or the rack.
4. Remove the server top cover. Use a Torx T10 screwdriver to unlock the release button latch.

 
Removing the Temperature Sensor

1. Remove the Fan Modules. For each of the fan modules using your forefinger and thumb, lift the fan module straight up and out of the chassis and set them aside on an antistatic mat.

2. With all fan modules removed, using a Torx T25 screwdriver, loosen the three spring-mounted screws that secure the fan tray to the server chassis.

3. Lift the fan tray from the server and set aside on an anti-static mat.

4. Remove the Temperature Sensor:

1. Disconnect the temperature sensor cable from the disk backplane.
2. Remove the three No. 2 Phillips screws that secure the FIM cable and Temp Sensor Access cover to the chassis.
3. Lift up and remove the FIM cable and Temp Sensor Access cover from the FIM cable and Temp Sensor Access cover slot. Set aside the FIM cable and Temp Sensor Access cover.
4. Remove the temperature sensor by carefully pulling the sensor cable rearward and through the cable trough along the left side of the chassis. Then lift the temperature sensor from the chassis.

Installing the Temperature Sensor

1. Install the Temperature Sensor:

1. Install the temperature sensor by carefully inserting the sensor-end of the cable through the rear opening of the cable trough. Then pull the cable through the opening and install it into the cable trough along the left side of the chassis.
2. Install the FIM cable and Temp Sensor Access cover to the chassis by inserting it into the FIM cable and Temp Sensor Access cover slot.
3. Install the three No. 2 Phillips screws to secure the FIM cable and Temp Sensor Access cover to the chassis.
4. Reconnect the temperature sensor cable to the disk backplane.

2. Lower the fan tray into the server.

3. Using a Torx T25 screwdriver, tighten the three spring-mounted screws that secure the fan tray to the server chassis.

4. Install each of the fan modules into the server. The fan modules are keyed to ensure that they are installed in the correct orientation. Press down on each fan module to fully seat the fan module.

Return the Server to Operation

1. Install the server top cover. Use a Torx T10 screwdriver to lock the release button latch.
2. Reconnect the power cords to the server power supply and connect any other cables to their original locations.
3. Return the server to the normal rack position.
4. Once the power cords have been re-attached and the ILOM has booted you will see a slow blink on the green LED for the server. Power on the
server by pressing the power button on the front of the unit.
5. Connect to the server console via the ILOM and monitor the boot.
      By default the ILOM serial console displays the primary console output.
      In the event of unexpected boot behavior, it is advisable to connect to both ILOM serial and ILOM graphics consoles at the same time and monitor.

OBTAIN CUSTOMER ACCEPTANCE

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

FIELD SERVICE ENGINEER and CUSTOMER ACTIVITY:

1. Verify all expected hardware is visible to the server and the fault is cleared. Assistance from the customer for server login access will be required.

2. Verify there are no outstanding faults in ILOM:

3. Verify there are no outstanding alerts in the Cell:

4. Re-activate the Storage Cell grid disks.  Follow Steps 7 to 10 of Note ID 1188080.1 “Steps to shut down or reboot an Exadata storage cell without affecting ASM”.

Where noted, the SQL, CellCLI and commands under ‘root’ should be run by the Customers DBA, unless the Customer provides login access to the Field Engineer.

These steps are also provided in the documentation:
   https://docs.oracle.com/cd/E80920_01/DBMMN/maintaining-exadata-storage-servers.htm#DBMMN21128

PARTS NOTE:

7344289 [F] Cable Kit
  - 7315479 3-Pin Temperature Sensor Cable, 170mm

REFERENCE INFORMATION:

Oracle Exadata Database Machine Maintenance Guide: https://docs.oracle.com/cd/E80920_01/DBMMN/maintaining-exadata-storage-servers.htm#DBMMN21128

Oracle Server X7-2L Documentation: https://docs.oracle.com/cd/E72463_01/index.html

Steps to shut down or reboot an Exadata storage cell without affecting ASM (Doc ID 1188080.1)

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