Preparing the 9043-MRX system to remove and replace an NVMe U.2 drive

To prepare the system to remove and replace an NVMe U.2 drive, complete the steps in this procedure.

1. If applicable, open the rack door at the front of the system.
2. Review the NVMe U.2 drive slot locations. The NVMe U.2 drive slots are located in the front of the system.

   

3. Review the NVMe U.2 drive LED locations.
   The NVMe U.2 drive has two LEDs that indicate the following status:

   • A power/activity LED (green)
   • An error and identify function LED (amber).

   

4. Choose from the following options:
   • If you want to install an NVMe U.2 drive when the system power is turned off, continue with step 5.
   • If the system power is turned on and if the AIX® operating system controls the slot, continue with step 10.
   • If the system power is turned on and if the Linux® operating system controls the slot, continue with step 11.
5. To prepare the system to install or replace an NVMe U.2 drive when the system is powered off, complete the following steps:
   1. Activate the identify function. For instructions, see Identifying a part.
   2. Physically verify that the slot you identified is where you want to install or replace the NVMe U.2 drive.
      • Use the blue identify LED on the enclosure to locate the system. Ensure that the serial number of the system matches the serial number to be serviced.
      • Look for a flashing amber LED, which identifies the slot that was selected by using the identify function.
   3. Stop the system. For instructions, see Stopping a system.
6. If applicable, open the rack door at the rear of the system.
7. Attach the electrostatic discharge (ESD) wrist strap.
   The ESD wrist strap must be connected to an unpainted metal surface until the service procedure is completed, and if applicable, until the service access cover is replaced.

   Attention:

   • Attach an electrostatic discharge (ESD) wrist strap to the front ESD jack, to the rear ESD jack, or to an unpainted metal surface of your hardware to prevent the electrostatic discharge from damaging your hardware.
   • When you use an ESD wrist strap, follow all electrical safety procedures. An ESD wrist strap is used for static control. It does not increase or decrease your risk of receiving electric shock when using or working on electrical equipment.
   • If you do not have an ESD wrist strap, just prior to removing the product from ESD packaging and installing or replacing hardware, touch an unpainted metal surface of the system for a minimum of 5 seconds. If at any point in this service process you move away from the system, it is important to again discharge yourself by touching an unpainted metal surface for at least 5 seconds before you continue with the service process.
8. If the system power is turned off, label and disconnect the power cords from the system unit.
   Note: You can use the hook-and-loop fastener to attach the power cords to the system. If you are placing the system in a service position after you disconnect the power cords, ensure that you unstrap the fastener.

   

   (L003)

   

   or

   

   or

   

   or

   

   or

   

   

   

   DANGER

   Multiple power cords. The product might be equipped with multiple AC power cords or multiple DC power cables. To remove all hazardous voltages, disconnect all power cords and power cables. (L003)
9. Continue with step 12.
10. To prepare to remove an NVMe U.2 drive by using the AIX operating system, complete the following steps:
    1. Take the NVMe U.2 drive offline before you remove and replace an NVMe U.2 drive when the system power is turned on.
       Before you take an NVMe U.2 drive offline, the devices that are attached to the adapter must be taken offline as well. This action must be done by a system administrator. Taking the NVMe U.2 drive offline prevents a service representative or user from causing an unexpected outage for other users of the system.
    2. Before you hot-plug an NVMe U.2 drive for storage devices, ensure that the file systems on those devices are unmounted.
    3. Ensure that any processes or applications that might use the drive are stopped.
    4. To identify the failed NVMe U.2 drive, complete the following steps on the AIX console:
       Note: The NVMe U.2 drives are based on PCI technology.

       1. Log in as root user.
       2. At the command line, type diag and then press Enter.
       3. From the Function Selection menu, select Task Selection > Hot Plug Task > PCI Hot Plug Manager > Unconfigure a Device.
       4. Press F4 (or Esc +4) to display the Device Names menu.
       5. Select the NVMe U.2 drive that you’re removing in the Device Names menu.
       6. Choose from the following options:
          • If you are replacing the NVMe U.2 drive, use the Tab key to answer Yes to Keep Definition.
          • If you are permanently removing the NVMe U.2 drive, use the Tab key to answer No to Keep Definition.
          Then, use the Tab key again to answer Yes to Unconfigure Child Devices, and then press Enter. Press Enter to confirm the operation. The OK message next to the Command field confirms a successful unconfiguration.
       7. Press F3 (or Esc +3) twice to return to the Hot Plug Manager menu.
       8. Select replace/remove PCI Hot Plug adapter and then select the slot that contains the NVMe U.2 drive to be removed from the system and press Enter.
       9. Select remove and press Enter. The green light remains on and the amber LED for the slot that is identified flashes.
    5. Physically verify that the slot you identified is where you want to install or replace the NVMe U.2 drive.
       • Use the blue identify LED on the enclosure to locate the system. Ensure that the serial number of the system matches the serial number to be serviced.
       • Look for a flashing amber LED, which identifies the slot that was selected by using the identify function.
    6. Press Enter on the console. The NVMe U.2 drive slot is placed in the action state and is ready to remove from the system. During the action state, the green LED turns off and the amber LED is flashing.
       Important: Remove the drive when you’re instructed to do so later in this procedure.
    7. Continue with step 12.
11. To prepare to remove an NVMe U.2 drive by using the Linux operating system, complete the following steps:
    1. Ensure that the system or logical partition is at the correct level of the operating system before you hot-plug an NVMe U.2 drive.
    2. Verify that the Linux, hot-plug tools are installed.
       For instructions, see Verifying that the hot-plug tools are installed for Linux.
    3. Ensure that you have the POWER® Linux Service Aids installed on your system.
       These service aids enable system serviceability, as well to improve system management. If you are using a Linux distribution with Linux kernel version 2.6 or later, you can install the Service Aids that give you access to more capabilities, which can help you diagnose problems on your system. This software is available at the Service and productivity tools for Linux on POWER website.
    4. Take the NVMe U.2 drive offline before you remove and replace an NVMe U.2 drive when the system power is turned on.
       Before you take an NVMe U.2 drive offline, the devices that are attached to the adapter must be taken offline as well. This action must be done by a system administrator. Taking the NVMe U.2 drive offline prevents a service representative or user from causing an unexpected outage for other users of the system.
    5. Before you hot-plug an NVMe U.2 drive for storage devices, ensure that the file systems on those devices are unmounted.
    6. Activate the identify function. For instructions, see Identifying a part.
    7. Physically verify that the slot you identified is where you want to install or replace the NVMe U.2 drive.
       • Use the blue identify LED on the enclosure to locate the system. Ensure that the serial number of the system matches the serial number to be serviced.
       • Look for a flashing amber LED, which identifies the slot that was selected by using the identify function.
    8. To prepare the slot to remove an NVMe U.2 drive by using the Linux operating system, complete the following steps:
       1. Type the following command:

          drmgr -c pci -r -s locationcode

          Where locationcode is the location of the slot. For example, the location might be U78D4.001.AAAXXXX-P2-C1.

       2. Follow the instructions on the display to complete the task.
12. Attach the electrostatic discharge (ESD) wrist strap.
    The ESD wrist strap must be connected to an unpainted metal surface until the service procedure is completed, and if applicable, until the service access cover is replaced.

    Attention:

    • Attach an electrostatic discharge (ESD) wrist strap to the front ESD jack, to the rear ESD jack, or to an unpainted metal surface of your hardware to prevent the electrostatic discharge from damaging your hardware.
    • When you use an ESD wrist strap, follow all electrical safety procedures. An ESD wrist strap is used for static control. It does not increase or decrease your risk of receiving electric shock when using or working on electrical equipment.
    • If you do not have an ESD wrist strap, just prior to removing the product from ESD packaging and installing or replacing hardware, touch an unpainted metal surface of the system for a minimum of 5 seconds. If at any point in this service process you move away from the system, it is important to again discharge yourself by touching an unpainted metal surface for at least 5 seconds before you continue with the service process.