z/VM - Servicing Virtual Switch OSA-Express Devices


If you need to take an OSA-Express device out of a virtual switch configuration in order to apply service, the following steps are recommended.

  • For this example, assume that virtual switch LINXNET1 is defined to use port group LINXGRP1. LINXGRP1 is defined to use devices A000 and B000. B000 is in need of service.

    1. Issue "SET PORT GROUP LINXGRP1 LEAVE B000" to remove device B000 from the port group configuration.
    2. Apply service to B000.
    3. Issue "SET PORT GROUP LINXGRP1 JOIN B000" to return device B000 to the port group configuration.

  • For this example, assume that virtual switch LINXNET2 is defined without a port group. Instead, device D000 is the active connection and E000 is a backup device.

    1. Issue "SET VSWITCH LINXNET2 DISCONNECT" to shut down the network connection in a controlled manner.
    2. Issue "SET VSWITCH LINXNET2 RDEV E000" to remove device D000 from the virtual switch configuration.
    3. Issue "SET VSWITCH LINXNET2 CONNECT" to restore the network connection using device E000.
    4. Apply service to D000.
    5. Issue "SET VSWITCH LINXNET2 RDEV D000 E000" to return device D000 to the virtual switch configuration as a backup device.

    If for some reason you want the E000 device to be the backup device,

    1. Issue "SET VSWITCH LINXNET2 DISCONNECT"
    2. Issue "SET VSWITCH LINXNET2 RDEV NONE"
    3. Issue "SET VSWITCH LINXNET2 RDEV D000 E000"

Please direct questions, comments and feedback to: 

Montana Lee
z/VM Development
montanalee@ibm.com