Hot spare between iSCSI local host adapters

The iSeries™ iSCSI local host adapter hardware provides hot spare capabilities to enhance the reliability and recoverability of the Windows server environment. If the iSCSI local host adapter that a Windows server is using fails, you can quickly and easily switch the server to use another "hot spare" iSCSI local host adapter. It also adds flexibility by enabling one "spare" iSCSI local host adapter to be used to protect multiple production iSCSI local host adapters.

This iSCSI local host adapter hot spare capability complements the hot spare capability that is provided for the integrated server hardware. For more information, Hot spare between server hardware.

To hot spare iSCSI local host adapter hardware using iSeries navigator, do the following steps:

  1. Stop the integrated servers that use the NWSH.

    1. Expand Integrated Server Administration.

    2. Select Servers.

    3. Right-click the server and select Shut down.

      You will need to do this step for each server that uses the NWSH.

    4. Click Shut down on the confirmation panel.

  2. If the network server host adapter (NWSH) for which you want to swap hardware is not already stopped:

    1. Expand iSCSI Connections.

    2. Select Local Host Adapters.

    3. Right-click the NWSH and select Stop.

    4. Click Stop on the confirmation panel.

    5. If active servers are currently using the NWSH, a warning message is shown. Click Continue.

  3. Change the NWSH to point to the hot spare iSCSI local host adapter:

    • Right-click the NWSH and select Properties.

    • Select the General tab and select a new value for the Hardware resource prompt.

    • Click OK.

  4. Start the NWSH.

    1. Right-click the NWSH and select Start.

  5. Start the servers that use the NWSH.

    1. Expand Integrated Server Administration.

    2. Select Servers.

    3. Right-click the server and select Start.

      You will need to do this step for each server that uses the NWSH.

If you are using CL commands, do the following steps.

  1. Use the Vary Configuration (VRYCFG) CL command to vary off the NWSDs that use the NWSH.

  2. Use the Vary Configuration (VRYCFG) CL command to vary off the NWSH.

  3. Use the Change Device Description (NWSH) (CHGDEVNWSH) CL command to change the value for the Resource Name (RSRCNAME) parameter to specify the new hardware resource name.

  4. Vary on the NWSH.

  5. Vary on the NWSDs that use the NWSH.