• Topic ID: id_15460677
  • Version: 3.0
  • Date: Jun 15, 2020 11:01:07 PM

Host Computer Replacement

Prerequisites

Overview

This procedure describes and illustrates the steps necessary to replace the Host Computer.

Figure 1. Host Computer

1 Power-Off (Shut Down) the Console

Procedure

  1. Select one of the following methods to power off the Operator Console:

    • If applications are running, click the Shut Down icon and select Shut Down.

    • If applications are down, open a Unix Shell using the Toolchest. Type: {ctuser@hostname} halt. Press Enter.

    The Operator Console monitor will display a ‘System Halted’ message when it is acceptable to power off the Operator Console.

  2. Power OFF the Operator Console at the front panel switch (Figure 2).

    Figure 2. Console Power Switch

  3. Perform the prescribed Lockout/Tagout procedure. For added protection, disconnect the Twist-N-Lock Main Power Cable from rear of console.

2 Remove the Old Host Computer

Procedure

  1. Remove the Front and Rear Operator Console Covers per the prescribed cover removal procedure.
  2. Remove the cable connections to the Host Computer chassis being replaced.
    note: Verify that all cables are labeled and clearly marked. If necessary, add a label for clarity.
  3. Remove the power cord at the rear of the Host Computer chassis
  4. Remove the four (4) 5mm socket cap mounting screws (Figure 3) from the front of the Host Computer chassis, holding the chassis to the Operator Console right side compartment.

    Figure 3. Host Computer Mounting

  5. Slide the Host Computer chassis forward (out the front of console) and set aside. Refer to the Component Lifting procedure.

3 Exchange NIC Card (eth0) Host Computer

Procedure

  1. Follow the Host Computer NIC Exchange-HP8400 procedure. Then return to these instructions.
    note: The System Option Licenses are tied to Host Computer’s Ethernet (eth0) MAC address. The appropriate NIC cards (Port C, Bottom NIC Card, Slot 6) can be exchanged if one is reasonably certain that the Host Computer failure is not related to the NIC cards. This will allow for the reuse of System Option Licenses, otherwise new Licenses must be obtained.

4 Install the Replacement Host Computer

Procedure

  1. Slide the replacement Host Computer into the Operator Console from the front.
  2. Replace the four (4) 5mm socket cap mounting screws to secure the Host Computer chassis to the Operator Console right side compartment. Torque to 4.6 N-m.
  3. Mount the power cord to the rear of the Host Computer chassis and verify that its power switch on the Host Computer’s Power Supply is turned to the ON position.
  4. Replace the rear cable connections.

    Figure 4. Host Computer Connections

  5. For cabling details, refer to the appropriate interconnect located in the System Diagrams folder of this service methods publication.

5 Power-On the Operator Console

Procedure

  1. Reconnect the Twist-N-Lock Main Power Cable from rear of console and remove Lockout Tagout protection applied earlier.
  2. Power ON the Operator Console at the console’s front panel switch.
  3. Visually verify the Host Computer front panel Power LED is illuminated. If not, press the Host Computer’s front panel power switch to apply power to the Host Computer.

    Figure 5. Host Computer Power Switch

6 Verify Replacement Host Computer Operation

Procedure

  1. Verify that the Host Computer has powered up and is not displaying or sounding any POST Errors.
    note: See Host Computer Troubleshooting if any errors appear.
  2. In order to assure proper operation of the Host computer it is necessary to perform software Load from Cold (LFC). Refer to the GOC6 Load From Cold.
  3. After completing the software LFC, make certain that you perform a final Save System State.

    Refer to System State Save Restore.

7 Finalization

Procedure

  1. After completing the LFC procedure, perform a complete shutdown of the Operator Console and restart the system.
  2. Refer to System Scanning Test to confirm proper operation.
  3. Reinstall Console Front and Rear Covers.