OceanStor 9000 V100R001C30 Parts Replacement 14

• The replacement main control board enclosure is ready.
• The cable connections have been labeled.

• Only qualified technical support engineers are allowed to replace a main control board enclosure.
• Ensure that both power supplies of the P12 have been shut down.

• Phillips screwdriver
• ESD gloves
• ESD wrist strap
• ESD bag
• Labels

1. Wear the ESD wrist strap and ESD gloves. Accomplish the following steps to wear an ESD wrist strap:
   1. Stretch your hand through the ESD wrist strap.
   2. Fasten the buckle and ensure that the ESD wrist strap fully touches the skin.

   3. The ESD wrist strap can be classified into the ESD wrist strap with a plug and the ESD wrist strap with a metal clip.

      • Insert the plug of the ESD wrist strap into the ESD socket of the cabinet.

        
        
        

      • Clip the metal clip of the wrist strap to the square hole on the side of the cabinet.

        
        
        
   4. Ensure that the buckle of the wrist strap is fastened and the plug is inserted tightly into the ESD socket or the metal clip is tightly clipped to the square hole on the cabinet.

2. Use KVM to log in to the OS as user root (default password is Root@storage), then run poweroff to poweroff the node and wait for the shutdown to complete.

   Wait for the KVM screen to have no output, indicates that the shutdown has been completed.

3. Label the cable connections between the P12 and power sockets and peripheral devices. Then disconnect the cables.
4. Pull out the main control board enclosure.
   1. Press the buttons on the inner sides of the two handles on the back of the enclosure, as shown in step 1 in Figure 2-64.
   2. Open the handles completely, as shown in step 2 in Figure 2-64.
   3. The main control board enclosure will be slowly pulled out when you open the handles, as shown in step 3 in Figure 2-64. Pull out the main control board enclosure and place it on an ESD platform.
   Figure 2-64  Removing the main control board enclosure from a P12
   
   

5. Remove the system disk modules and NVDIMM module from the main control board enclosure, and put them into ESD bags. For details about how to remove them, see Replacing a System Disk Module and Replacing an NVDIMM Module.
6. Take the replacement main control board enclosure out of its ESD bag.
7. Install the system disk modules and NVDIMM module into the main controller board enclosure in sequence. For details about how to install them, see Replacing a System Disk Module and Replacing an NVDIMM Module.
8. Install the main control board enclosure.
   1. Hold the main control board enclosure and slide it into the cabinet, as shown in step 1 in Figure 2-65.
   2. Lift the two handles on the back of the main control board enclosure upward to push the main control board enclosure into place, as shown in step 2 in Figure 2-65. Close the two handles.
   Figure 2-65  Installing the main control board enclosure for a P12
   
   

   After hardware installation, if there are operations need to be performed using BIOS, for the initial startup, clear NVDIMM data using the BIOS. Otherwise, the operating system may fail to be started. Before connecting the power cable and powering on the storage node, connect the KVM cable, and then adjust the display content of the KVM to the port connected to the storage node.

9. Correctly connect the P12 to the power sockets and peripheral devices according to the cable connection labels. Then power on the P12.
10. Clear NVDIMM data.
    1. During the system startup process, press Esc when the Press Esc for boot options message is displayed, choose SCU, input the BIOS password to enter the BIOS screen.
       Figure 2-66  Pressing Esc
       
       
       Figure 2-67  Choosing SCU
       
       

    2. Choose Security > Clear NvDimm Flash.
       Figure 2-68  Choosing Clear NvDimm Flash
       
       

    3. In the Clear NvDimm Flash? dialog box, select Yes and press Enter.
       Figure 2-69  Starting to clear NVDIMM data
       
       

    4. Wait 20 seconds. Check whether the displayed dialog box states "Clear NvDimm flash success. Please reboot system!"
       • If yes, go to 10.e.
       • If no, contact technical support.
       Figure 2-70  Clearing NVDIMM data
       
       

    5. Press Enter and then F10. In the dialog box that is displayed, select Yes to save the configuration and restart the storage node.
       Figure 2-71  Saving the configuration and restarting the storage node
       
       

11. Check whether the components are successfully installed. For details, see Replacing a System Disk Module and Replacing an NVDIMM Module.
12. Activate the RAID (system disks) of the storage node.
    1. Press Ctrl+C to go to the SAS BIOS interface when the following information is displayed during the startup of the operating system running on the storage node.

       Press Ctrl-C to start LSI Corp Configuration Utility...

    2. Press Enter and choose RAID Properties > View Existing Volume > Manage Volume > Activate Volume, as shown in Figure 2-72.
       Figure 2-72  Going to Activate Volume
       

    3. Press Y to activate the RAID, as shown in Figure 2-73.
       Figure 2-73  Activating the RAID
       

    4. choose SAS Topology > LSI, press Alt+B to set the value of Device Info to Boot. See Figure 2-74.
       Figure 2-74  Setting Boot option
       

    5. Press Esc, choose Save changes then exit this menu, press Esc twice, then chooseExit the Configuration Utility and Reboot.
13. Configure an IP address for the Intelligent Platform Management Interface (IPMI) of the storage node.
    1. Run the restart command on the KVM to restart the storage node.
    2. During the system startup process, press Esc when the Press Esc for boot options message is displayed, choose SCU, input the BIOS password to enter the BIOS screen.
    3. Choose Advanced > IPMI BMC Configuration > BMC Configuration.
    4. Set IP Source to Static.
    5. Set correct IPv4 IP Address, IPv4 Subnet Mask, and IPv4 Gateway Address.
    6. Press F10 and select yes to save the configurations and exit the BIOS screen.
14. Run the script to check the status of the storage node.

    cd /opt/huawei/deploy/script

    ./envcheck.py

    Normal result is as follows:

    [2014-11-05 16:45:02,491][INFO    ][module:envcheck, line:0620] 
    ********************************************************************************
    Check Item: SNAS Environment Check Summary
    Check Pass:True
    Check Cmd :
    Check Info:
    kernel version: OK
    nvdimm driver: OK
    TOE driver: OK
    HardRaid status: OK
    Firewall status: OK
    Command Output:
    ********************************************************************************
    

15. Check whether the network ports of the storage node are named A0-0, A0-1, B3-0, and B3-1.
    1. Run ifconfig -a on the KVM to check whether the network ports of the storage node are named A0-0, A0-1, B3-0, and B3-1.
       • If yes, go to 16.
       • If no, go to 15.b.

    2. Run reboot to restart the storage node to identify the new network adapter.
16. Connect signal cables to the storage node according to the cable connection label.
17. Check the status of the storage node on the DeviceManager.
    1. Start the browser on the maintenance terminal and log in to the DeviceManager.
    2. In the Alarms area on the home page, check whether a new alarm is reported.
       • If yes, handle the alarm according to the alarm help.
       • If no, go to 17.c.

    3. On the right of the home page, click System to go to the System page.
    4. Click Device View tab to go to the Device View page.
    5. In Nodes, check the status of the node that is newly added to the cluster.
       • Health Status: Normal
       • Running Status: Online

18. Wait 10 minutes and run reboot to restart the storage node.

    After the storage node is successfully restarted, the SN of the subrack of the new main control board will be updated to the configuration file.

After the main control board enclosure is replaced, label the replaced main control board enclosure to facilitate subsequent operations.