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Asset ID: 1-71-1592273.1
Update Date:2018-05-16
Keywords:
Solution Type  Technical Instruction Sure

Solution  1592273.1 :   How to Replace a Sun Server X4-2 Disk Backplane  

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  • PLA-Support>Sun Systems>Sun_Other>Sun Collections>SN-OTH: x64-CAP VCAP
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Oracle Confidential PARTNER - Available to partners (SUN).

Reason: FRU CAP           


Applies to:  

Exadata X4-2 Quarter Rack - Version All Versions to All Versions [Release All Releases]
Exadata X4-2 Eighth Rack - Version All Versions to All Versions [Release All Releases]
Exadata X4-2 Full Rack - Version All Versions to All Versions [Release All Releases]
Exadata X4-2 Half Rack - Version All Versions to All Versions [Release All Releases]
Exalogic Elastic Cloud X4-2 Eighth Rack - Version X4 to X4 [Release X4]
x86_64



Goal


How to Replace a Sun Server X4-2 Disk Backplane.


Solution


DISPATCH INSTRUCTIONS


WHAT SKILLS DOES THE FIELD ENGINEER/ADMINISTRATOR NEED?:
Sun Server X4-2 Training


TIME ESTIMATE: 60 minutes


TASK COMPLEXITY: 1


FIELD ENGINEER/ADMINISTRATOR INSTRUCTIONS:


PROBLEM OVERVIEW: A Sun Server X4-2 Disk Backplane needs replacement


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


If the system is still up and functioning, 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: If this server is part of an Exadata, please follow shutdown instructions in Section 1 of DOC ID: 1539451.1


Animation videos are available to demonstrate the disk backplane replacement process for these servers. please refer to the following links:




 WHAT ACTION DOES THE ENGINEER NEED TO TAKE:

 1. Prepare the server for service.


    

  1. Power off the server and disconnect the power cords from the power supplies.
    2. 

  2. Extend the server to the maintenance position in the rack.
    3. 

  3. Attach an anti-static wrist strap.
    4. 



2. Remove all of the Fan Modules


    

  1. Open the Server Fan Door. Slide the fan door latches forward and swing the door up to the open position.
    2. 

  2. Using your thumb and forefinger, grasp the fan module in the finger recesses located in the plastic between the fans.
    3. 

  3. Lift the fan module straight up and out of the chassis.
    4. 



3. Remove all of the storage drives from the storage drive cage.


    

  1. On each drive, push the latch release button to open the latch
    2. 

  2. Grasp the latch and pull the drive out of the drive slot.
    3. 

  3. Place the drives on an antistatic mat making sure to note the slot locations that the drives were removed from so that they can be re-installed in their proper slots.
    4. 



4. Disconnect the cables and remove the storage drive backplane(s)


    

  1. Starting with top disk backplane (if servicing a server with two disk backplanes) disconnect the SAS cable from the disk backplane. make note of cable locations so that they can be reconnected in the same locations.
    2. 

  2. Disconnect the disk backplane power cable from the disk backplane
    3. 

  3. Disconnect the disk backplane LED cable from the disk backplane
    4. 

  4. If the server has a DVD drive, disconnect the DVD drive power cable from the disk backplane
    5. 

  5. Using just your thumb and fingers, loosen the two captive thumb screws that secure the disk backplane to the chassis
    6. 

  6. Slide the backplane forward toward the front of the server to release it from the three mushroom standoffs and lift it out of the chassis
    7. 

  7. Place the storage drive backplane on an antistatic mat.
    8. 

  8. If the server has a second disk backplane that requires removal repeat steps a-g
    9. 



5. Install the new storage drive backplane(s) and connect the cables.


    

  1. Starting with the bottom disk backplane location, lower the backplane into the server and position it to engage the three mushroom standoffs.
    2. 

  2. Using just your thumb and fingers, tighten the two captive thumb screws to secure the disk backplane to the chassis
    3. 

  3. If the server has a DVD drive, reconnect the DVD drive power cable to the disk backplane
    4. 

  4. Reconnect the disk backplane LED cable to the disk backplane
    5. 

  5. Reconnect the disk backplane power cable to the disk backplane
    6. 

  6. Reconnect the SAS cable to the disk backplane making sure to connect the cable in the same location as when it was removed.
    7. 

  7. If the server has more than four storage drives, repeat all of the preceding steps (with the exception of Step c, which directs you to reconnect the DVD drive power cable) to install the second disk backplane.
    8. 



6. Re-install the storage drives into the storage drive cage.


    

  1. Making sure to install the drives back into the same slots from which they were removed align the drive to the drive slot.
    2. 

  2. Slide the drive into the bay until the drive is fully seated.
    3. 

  3. Close the drive latch to lock the drive in place.
    4. 



7. Re-install the Fans.


    

  1. Install the fan modules into the server.
    2. 

  2. For each module press down on the fan module and apply firm pressure to fully seat the fan module.
    3. 

  3. Close the fan door.
    4. 



8. Return the Server to operation


    

  1. Remove any anti-static measures that were used.
    2. 

  2. Return the server to it's normal operating position within the rack.
    3. 

  3. Re-install the AC power cords and any data cables that were removed.
    4. 

  4. Power on server. Verify that the Power/OK indicator led lights steady on.
    5. 



9. Set the system serial number/fruid data if needed.


    

  1. Disk Backplane 0 is the primary psnc container in this server so when it is replaced you will normally need to fix the serial number information.
    2. 

  2. login to the ILOM as root and then enter the restricted shell to check the psnc values. Follow the example below to enter restricted shell and use the showpsnc command   

    

    -> set SESSION mode=restricted
    

    WARNING: The "Restricted Shell" account is provided solely
    to allow Services to perform diagnostic tasks.

    [(restricted_shell) sunx4-2-sp:~]$showpsnc
    Primary: fruid:///SYS/DBP0
    Backup 1: fruid:///SYS/MB
    Backup 2: fruid:///SYS/PS0

    Element           | Primary           | Backup1           | Backup2           
    ------------------+-------------------+-------------------+-------------------
    PPN                 012345678           32180288+1+1        32180288+1+1       
    PSN                 012345678           1234NML12V          1234NML12V         
    Product Name        SUN SERVER X4-2     SUN SERVER X4-2     SUN SERVER X4-2  
    [(restricted_shell) sunx4-2-sp:~]$exit
    

    

    3. 

  3. When Disk Backplane 0 is replaced the Primary psnc container will likely not match the Backup entries. If it does not you must enter escalation or service mode to fix it (if all three entries match this step is done)
    4. 

  4. Contact the TSC to request an escalation password (service mode will work also if just the copypsnc command ends up needing to be used, if the setpsnc command is needed escalation mode is required. setpsnc is not covered in this procedure).
    5. 

  5. Provide your TSC contact the output from the following ILOM commands- "version", "show /SYS product_serial_number", and "show /SP/clock". If the product_serial_number information does not give good output then provide the showpsnc output that was see in step b above as well.
    6. 

  6. The TSC will provide an escalation password that is made up of 30 short words. Follow the example below to create a new user with the 'Service' role assigned. The Service role is required to access service or escalation modes. In the following example we will create a user named 'escuser' with the service role.

    -> cd /SP/users
    /SP/users
    -> create escuser
    Creating user...
    Enter new password: ********
    Enter new password again: ********
    Created /SP/users/escuser
    -> set escuser role=aucros
    Set 'role' to 'aucros'
    -> show escuser
    /SP/users/escuser
    Targets:
    ssh
    Properties:
    role = aucros
    password = *****
    

    7. 

  7. set the check_physical_presence to false and then exit from the ILOM so that you can login as the newly created user.

    -> set /SP check_physical_presence=false
    Set 'check_physical_presence' to 'false'
    -> show /SP check_physical_presence
    /SP
    Properties:
    check_physical_presence = false

    -> exit
    

    8. 

  8. Login using the escuser login and enter escalation mode using the password that was provided by the TSC

    sunx4-2-sp login: escuser
    Password: ********
    Oracle(R) Integrated Lights Out Manager

    Version 3.1.2.30 r82439

    Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.

    -> set SESSION mode=escalation                            
    Password:**** **** **** **** **** *** *** **** **** **** **** **** **** **** **** **** *** *** **** *** **** **** **** *** **** **** *** **** *** *
    Short form password is:  NOSE HAAG MED 

    [(escalation_mode) sunx4-2-sp:~]#
    

    9. 

  9. Use the showpsnc command to confirm the current container values. Confirm that one of the backup containers has a serial number (the value on the PSN line) that matches the system serial number. The system serial number can be checked by comparing to the serial number RFID tag on the front left hand side of the server. After confirming that there is a valid psnc backup use the copypsnc command to write the good data from the backup to the primary container on the fan board. The following example shows copying from backup1 to the primary but you could also copy from backup2 if needed.
    

    [(escalation_mode) sunx4-2-sp:~]#showpsnc
    Primary: fruid:///SYS/DBP0
    Backup 1: fruid:///SYS/MB
    Backup 2: fruid:///SYS/PS0

    Element           | Primary           | Backup1           | Backup2           
    ------------------+-------------------+-------------------+-------------------
    PPN                 012345678           32180288+1+1        32180288+1+1       
    PSN                 012345678           1234NML12V          1234NML12V         
    Product Name        SUN SERVER X4-2     SUN SERVER X4-2     SUN SERVER X4-2  
    [(escalation_mode) sunx4-2-sp:~]# copypsnc Backup1 Primary
    [(escalation_mode) sunx4-2-sp:~]# showpsnc
    Primary: fruid:///SYS/DBP0
    Backup 1: fruid:///SYS/MB
    Backup 2: fruid:///SYS/PS0

    Element           | Primary           | Backup1           | Backup2           
    ------------------+-------------------+-------------------+-------------------
    PPN                 32180288+1+1        32180288+1+1        32180288+1+1       
    PSN                 1234NML12V          1234NML12V          1234NML12V         
    Product Name        SUN SERVER X4-2     SUN SERVER X4-2     SUN SERVER X4-2  
    [(escalation_mode) sunx4-2-sp:~]# exit

    

    10. 

  10. At this point if all of the psnc containers match and have the correct serial number data this step is done. If more than one of the psnc containers had non-valid entries then the copypsnc command should be used to copy over the valid data to the other container that is not valid. (ie. "copypsnc Backup1 Backup2" to copy backup1 to backup2) After confirming all psnc data is correct reset the ILOM to confirm that the psnc data persists through a reboot and remove the escalation user if needed.
    

    -> reset /SP
    Are you sure you want to reset /SP (y/n)? y
    Performing reset on /SP
    ..........

    ***login as the root user again and check the psnc data***

    -> set SESSION mode=restricted

    WARNING: The "Restricted Shell" account is provided solely
    to allow Services to perform diagnostic tasks.

    [(restricted_shell) sunx4-2-sp:~]$showpsnc
    Primary: fruid:///SYS/DBP0
    Backup 1: fruid:///SYS/MB
    Backup 2: fruid:///SYS/PS0

    Element           | Primary           | Backup1           | Backup2           
    ------------------+-------------------+-------------------+-------------------
    PPN                 32180288+1+1        32180288+1+1        32180288+1+1       
    PSN                 1234NML12V          1234NML12V          1234NML12V         
    Product Name        SUN SERVER X4-2     SUN SERVER X4-2     SUN SERVER X4-2 
    [(restricted_shell) sunx4-2-sp:~]$exit

    -> cd /SP/users
    /SP/users
    -> delete escuser
    Are you sure you want to delete /SP/users/escuser (y/n)? y
    Deleted /SP/users/escuser
    

    11. 

  11. If trouble is encountered during any of the steps of accessing escalation mode and fixing the psnc containers please contact the TSC for assistance.
    12. 



OBTAIN CUSTOMER ACCEPTANCE
 
 WHAT ACTION DOES THE CUSTOMER NEED TO TAKE TO RETURN THE SYSTEM TO AN OPERATIONAL STATE:
 
 Boot up system and verify full functionality


Note: If this server is part of an Exadata, please follow restart instructions in Section 1, step 10 of DOC ID: 1539451.1



 REFERENCE INFORMATION:
 Sun Server X4-2 Documentation


http://docs.oracle.com/cd/E36975_01/index.html


How to shutdown the Exadata database nodes and storage cells in a rolling fashion so certain hardware tasks can be performed. (Doc ID 1539451.1)



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