How to Replace SPARC T8-1 Disk Backplane [VCAP]

Asset ID:	1-71-2290637.1
Update Date:	2018-03-19
Keywords:

Solution Type Technical Instruction Sure

Solution 2290637.1 : How to Replace SPARC T8-1 Disk Backplane [VCAP]

Applies to:

SPARC T8-1 - Version All Versions to All Versions [Release All Releases]
Information in this document applies to any platform.

Goal

How to Replace SPARC T8-1 Disk Backplane

Solution

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To report errors or request improvements on this procedure, please add a comment to Doc ID: 2290637.1
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ESD Caution:

Circuit boards and drives contain electronic components that are extremely sensitive to static electricity. Ordinary amounts of static electricity from clothing or the work environment can destroy the components located on these boards. Do not touch the components along their connector edges.
Use a Antistatic Wrist strap. Attach one end of the strap to your wrist and the other end to the chassis, depending on what type of strap you use, with the adhesive end or the metal plug.
Use an Antistatic Mat. Place ESD-sensitive components such as motherboards, memory, and other PCBs on an antistatic mat.

Contamination Caution:

Dust particles of packaging material are number one cause of datacenter contamination. Make sure to remove all packaging material, up to the ESD safe packaging material, while still being outside the datacenter.

DISPATCH INSTRUCTIONS

WHAT SKILLS ARE REQUIRED?: SPARC T8-1 Product Training required, to be serviced by qualified Oracle Service personnel, requires the ability to follow steps similar to what is in the Product Service manual.

Time Estimate: 60 minutes

TASK COMPLEXITY: 1

REMOVAL/REPLACEMENT INSTRUCTIONS:

PROBLEM OVERVIEW: SPARC T8-1 Disk Backplane Replacement

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

Note:

A data backup is not a prerequisite but is a wise precaution.
If the system is still up and functioning, the Customer should perform an orderly and graceful shutdown of the applications and operating system.
Then power off the server and remove the AC power cords from the system. For ALL scenarios where an AC power down or AC power cycle is required for a T8-x server, please always use the steps in doc 1571054.1 prior to physically removing AC power cables from the server.

WHAT ACTIONS ARE REQUIRED?:

Damage Alert:

Perform a visual inspection of the replacement part to make sure that there are no damaged components, connectors, bent pins, damaged packages during shipping, etc). If the part is damaged, don't install it into the system, order a new part. Handle with caution and package carefully the return part to avoid any damages during shipping.

Verify/Update TLI Prior to Replacement

1. Log into the ILOM and check the fruid container values and sync them if needed.

a. To avoid mismatched fruid values causing a failure after a disk backplane (DBP) replacement the fruid data should be confirmed to have matching data in at least the Backup1 (SPM) and Backup2 (MB) containers so that the DBP will have it's container updated automatically after replacement. Go into restricted mode and use the showpsnc command to check this.

-> set SESSION mode=restricted

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

     [(restricted_shell) bur-t81-300-sp:~]# showpsnc
     Primary: fruid:///SYS/DBP
     Backup 1: file:///persist/psnc_backup1.xml
     Backup 2: fruid:///SYS/MB

     Element            | Primary             | Backup1            | Backup2
     ------------------+-------------------+-------------------+-------------------
     PPN                  33683237+1+1     33683237+1+1    33683237+1+1
     PSN                  AK00315809         AK00315809        AK00315809
     MACADDR         00:10:E0:BB:C6:F6 00:10:E0:BB:C6:F6 00:10:E0:BB:C6:F6
     HOSTID            86bbc6f6              86bbc6f6             86bbc6f6
     Product Name    SPARC T8-1          SPARC T8-1         SPARC T8-1
     RFID SN            341A583DE580000000028000 341A583DE580000000028000 341A583DE580000000028000
     [(restricted_shell) bur-t81-300-sp:~]#

b. The above example shows a system with all three containers properly in sync. If the output from the system does not show all of the containers with matching values then you should reset the SP and then re-check the values again. An ILOM reset will attempt to auto-populate the matching values if one container is out of sync.

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

c. After an ILOM reset if the Backup1 and Backup2 containers match then proceed with the following steps to replace the DBP. If these two containers do not match then DO NOT proceed with the replacement yet.
d. If the containers do not match you will need to use the copypsnc command from service or escalation mode to copy the data from the good container so that the Backup1 and Backup2 containers match (Primary is the DBP and we are about to replace this so it is not as important at this step).

If you are unfamiliar with this process and require assistance please reference the steps for using copypsnc to fix the serial number detailed in the "How to update product serial number on systems which implement TLI functionality (Doc ID 1280913.1)" and contact the TSC if needed. How to access service mode and escalation mode on ILOM 3.x and later platforms (Doc ID 1019946.1).
e. After the fruid data in the Backup1 and Backup2 containers have been confirmed to match proceed with the following steps.

2. Prepare the server for service.

a. Power off the server and disconnect the power cords from the power supplies.
b. Extend the server to the maintenance position in the rack.
c. Attach an anti-static wrist strap.

Replace the Disk Backplane

1. Pull each storage disk out far enough to disengage it from the disk backplane.

Note:

It is not necessary to completely remove the storage drives from the server; simply pull them out far enough to disengage them from the disk backplane. If you do remove the storage drives from the server, record their locations so that you can reinstall them in the same locations.

2. Remove the fan cover.

a. Remove 12 screws on the top and side of the fan cover.

Note:

The fan covers on some units are secured with T6 Torx screws. Other units are secured with No. 2 Phillips screws.

b. Lift the fan cover from the server.

3. If necessary, remove the fan modules from the server.

4. Disconnect the cables from the disk backplane.

a. Disconnect the two SAS cables from the disk backplane to the motherboard.

Note:

Note the cable connections in order to ease proper reconnection of the cables.

b. Disconnect the power cable from the disk backplane.
c. If present, disconnect the two optional NVMe cables from the disk backplane.

5. Using a No. 2 Phillips screwdriver, loosen the right-side spring-mounted screw (on the power supply side of the server) that secures the disk backplane to the chassis.

6. Lift up on the left-side spring tab, and then gently release the disk backplane from the standoff hooks and out from under the spring tab.

7. Pull the storage disk backplane away from the standoff hooks and spring tab and out of the chassis and place it on an antistatic mat.

8. Lower the new disk backplane into the server, and then position it under the spring tab to engage the standoff hooks.

a. The standoff hooks fit into small openings in the disk backplane.
b. Make sure that ribbon cables aren't caught under the disk backplane.

9. Using a No. 2 Phillips screwdriver, install and tighten the spring-mounted screw (on the power supply side of the server) to secure the disk backplane to the chassis.

10. Reconnect the cables to the disk backplane.

a. Reconnect the auxiliary signal cable to the drive backplane.
b. Reconnect the power cable to the drive backplane.
c. If present, reconnect the two optional NVMe cables to the storage drive backplane.
d. Reconnect the two SAS cables to the drive backplane from the motherboard.

11. Reinstall the fan modules if they were removed and replace the fan cover by securing the cover with either the 12 T6 Torx screws or 12 No. 2 Phillips screws that were removed in Step #2.

Note:

Make sure you align all 12 screws in their holes before securing them.

12. Return the Server to operation.

a. Remove any anti-static measures that were used.
    b. Return the server to it's normal operating position within the rack.
    c. Re-install the AC power cords and any data cables that were removed.
    d. Power on server. Verify that the Power/OK indicator led lights steady on.

Note:

Oracle Authorized Service personnel might need to reprogram the product serial number on the disk backplane. This number is used for service entitlement and warranty coverage. The correct product serial number is located on a label on the front of the chassis.

Verify/Update TLI After Replacement

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

a. The disk backplane is the primary fruid container in this server so when it is replaced you will normally need to fix the serial number information.
b. login to the ILOM as root and then enter the "restricted shell" to check the fruid values. Follow the example below to enter restricted shell and use the showpsnc command:

     Element            | Primary             | Backup1            | Backup2
     ------------------+-------------------+-------------------+-------------------
     PPN                  33683237+1+1     33683237+1+1    33683237+1+1
     PSN AK00315809 AK00315809        AK00315809
     MACADDR         00:10:E0:BB:C6:F6 00:10:E0:BB:C6:F6 00:10:E0:BB:C6:F6
     HOSTID            86bbc6f6              86bbc6f6             86bbc6f6
     Product Name    SPARC T8-1          SPARC T8-1         SPARC T8-1
     RFID SN            341A583DE580000000028000 341A583DE580000000028000 341A583DE580000000028000
     [(restricted_shell) bur-t81-300-sp:~]#

c. When the disk backplane is replaced the Primary fruid 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).
d. 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).
e. 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 seen in step b above as well.
f. The TSC will provide an escalation password that is made up of 32 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 = *****

g. 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

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

bur-t81-300-sp login: escuser
Password:

Oracle(R) Integrated Lights Out Manager

Version 3.2.4.34 r95732

Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.

Warning: The system appears to be in manufacturing test mode.
Contact Service immediately.

Hostname: bur-t81-300-sp

-> cd /SP/users/escuser/escalation
-> set SESSION mode=escalation
Password:**** **** **** **** **** *** *** **** **** **** **** **** **** **** **** **** *** *** **** *** **** **** **** *** **** **** *** **** *** *
Short form password is: NOSE HAAG MED

[(escalation_mode) bur-t81-300-sp:~]#

i. 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 fruid backup use the copypsnc command to write the good data from the backup to the primary container on the DBP. The following example shows copying from backup1 to the primary but you could also copy from backup2 if needed.

     [(restricted_shell) bur-t81-300-sp:~]# showpsnc
     Primary: fruid:///SYS/DBP
     Backup 1: file:///persist/psnc_backup1.xml
     Backup 2: fruid:///SYS/MB

     Element            | Primary             | Backup1            | Backup2
     ------------------+-------------------+-------------------+-------------------
     PPN                  33683237+1+1    33683237+1+1    33683237+1+1
     PSN                  0000000000        AK00315809        AK00315809
     MACADDR         00:10:E0:BB:C6:F6 00:10:E0:BB:C6:F6 00:10:E0:BB:C6:F6
     HOSTID            86bbc6f6             86bbc6f6             86bbc6f6
     Product Name    SPARC T8-1         SPARC T8-1         SPARC T8-1
     RFID SN            341A583DE580000000028000 341A583DE580000000028000 341A583DE580000000028000

[(restricted_shell) bur-t81-300-sp:~]# copypsnc Backup1 Primary

     [(restricted_shell) bur-t81-300-sp:~]# showpsnc
     Primary: fruid:///SYS/DBP
     Backup 1: file:///persist/psnc_backup1.xml
     Backup 2: fruid:///SYS/MB

     Element            | Primary             | Backup1            | Backup2
     ------------------+-------------------+-------------------+-------------------
     PPN                  33683237+1+1    33683237+1+1    33683237+1+1
     PSN                  AK00315809        AK00315809        AK00315809
     MACADDR         00:10:E0:BB:C6:F6 00:10:E0:BB:C6:F6 00:10:E0:BB:C6:F6
     HOSTID            86bbc6f6 86bbc6f6 86bbc6f6
     Product Name    SPARC T8-1         SPARC T8-1         SPARC T8-1
     RFID SN            341A583DE580000000028000 341A583DE580000000028000 341A583DE580000000028000

[(restricted_shell) bur-t81-300-sp:~]# exit

j. At this point if all of the fruid containers match and have the correct serial number data this step is done. If more than one of the fruid 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 fruid data is correct reset the ILOM to confirm that the fruid 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 fruid data***

-> set SESSION mode=restricted

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

     [(restricted_shell) bur-t81-300-sp:~]# showpsnc
     Primary: fruid:///SYS/DBP
     Backup 1: file:///persist/psnc_backup1.xml
     Backup 2: fruid:///SYS/MB

     Element            | Primary             | Backup1            | Backup2
     ------------------+-------------------+-------------------+-------------------
     PPN                  33683237+1+1    33683237+1+1    33683237+1+1
     PSN                  AK00315809    AK00315809        AK00315809
     MACADDR          00:10:E0:BB:C6:F6 00:10:E0:BB:C6:F6 00:10:E0:BB:C6:F6
     HOSTID            86bbc6f6             86bbc6f6             86bbc6f6
     Product Name    SPARC T8-1         SPARC T8-1         SPARC T8-1
     RFID SN            341A583DE580000000028000 341A583DE580000000028000 341A583DE580000000028000

[(restricted_shell) bur-t81-300-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

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

How to verify the Disk Backplane is working properly

1. Log into ILOM to confirm if disk backplane status is working properly.

Sample:

-> show /SYS/DBP

/SYS/DBP
    Targets:
        HDD0
        HDD1
        HDD2
        HDD3
        HDD4
        HDD5
        HDD6
        HDD7
        NVME0
        NVME1
        NVME2
        NVME3

Properties:
       type = Disk Backplane
       ipmi_name = DBP
       fru_description = ASSY,8DBP,1U/2U
       fru_manufacturer = Oracle Corporation
       fru_part_number = 7097205
       fru_rev_level = 05
       fru_serial_number = 489089M+17036L4BTD
       fault_state = OK
       clear_fault_action = (none)

    Commands:
        cd
        set
        show

->

2. Check ILOM event log to see if any error related to the disk backplane.

-> show /SP/faultmgmt
-> show /SP/logs/event/list

OBTAIN CUSTOMER ACCEPTANCE

WHAT ACTION DOES THE FE/CUSTOMER NEED TO TAKE TO RETURN THE SYSTEM TO AN OPERATIONAL STATE:

Boot system and monitor boot sequence for errors. Test functionality of system:

Run the Solaris "fmadm faulty" and SP/ILOM "show faulty" command to verify that the fault has been cleared.
Perform one of the following tasks based on your verification results:
- If the previous steps did not clear the fault, refer to doc 1004229.1 for information about the tools and methods you can use to diagnose and clear component faults.
- If the previous steps indicate that no faults have been detected, the component has been replaced successfully. No further action is required
Restart software applications per applicable administration guides to resume system operation.

PARTS NOTE:
https://support.oracle.com/handbook_partner/Systems/SPARC_T8_1/components.html#DiskBackplane

REFERENCE INFORMATION:
SPARC T8-1 Service Manual: https://docs.oracle.com/cd/E79179_01/html/E80510/index.html

Save

References

<NOTE:1571054.1> - Performing an AC power cycle on the T3/T4/T5/S7/T7/T8 Servers

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