2.7.3 Configuring the Additional Network Card for an Oracle VM Environment

You can configure the additional network card on an Oracle Exadata X6-2 and later database server for an Oracle VM environment.

This procedure assumes that you have already installed the network card in the Oracle Exadata database server but have not yet completed the configuration with Oracle Exadata Deployment Assistant (OEDA).

Caution:

Do not attempt this procedure if you have already installed Oracle Grid Infrastructure on Oracle Exadata.

1. Add a section for the new network in the /EXAVMIMAGES/conf/virtual_machine_config_file configuration file in dom0.

   The following example assumes the bridge is called vmeth6, and the interface is called eth1. The virtual machine configuration file name is /EXAVMIMAGES/conf/test08adm01vm01.example.com-vm.xml.

   <Interfaces>
     <Bridge>vmeth6</Bridge>
     <Gateway>10.129.16.0</Gateway>
     <Hostname>test08adm02-bkup.example.com</Hostname>
     <IP_address>10.129.19.34</IP_address>
     <Name>eth1</Name>
     <IP_enabled>yes</IP_enabled>
     <IP_ssh_listen>disabled</IP_ssh_listen>
     <Net_type>Other</Net_type>
     <Netmask>255.255.248.0</Netmask>
     <Vlan_id>0</Vlan_id>
     <State>1</State>
     <Status>UP</Status>
   </Interfaces>
   

   If you are using VLANs, enter the appropriate VLAN ID [1-4095] in the <Vlan_id> element.

2. Create the bridge.
   1. To create an unbonded bridge named vmeth6:

      # /opt/exadata_ovm/exadata.img.domu_maker add-single-bridge-dom0 vmeth6
      

   2. To create an bonded bridge, use a command similar to the following:

      # /opt/exadata_ovm/exadata.img.domu_maker add-bonded-bridge-dom0 bridge_name slave1 slave2 [vlan]

      slave1 and slave2 are the names of the bonded interfaces.

      For example:

      # /opt/exadata_ovm/exadata.img.domu_maker add-bonded-bridge-dom0 vmbondeth1 eth6 eth7

3. (X2 to X8 servers only) Allocate the GUIDs for the InfiniBand Network Fabric:

   # /opt/exadata_ovm/exadata.img.domu_maker allocate-guids virtual_machine_config_file virtual_machine_config_file_final
   

   The virtual machine configuration files are located in the /EXAVMIMAGES/conf directory. For example:

   # /opt/exadata_ovm/exadata.img.domu_maker allocate-guids /EXAVMIMAGES/conf/
   test08adm01vm01.example.com-vm.xml /EXAVMIMAGES/conf/final-test08adm01vm01
   .example.com-vm.xml
   

4. Shut down the guest and restart it.

   # /opt/exadata_ovm/exadata.img.domu_maker remove-domain /EXAVMIMAGES/conf
   /final-test08adm01vm01.example.com-vm.xml
   
   # /opt/exadata_ovm/exadata.img.domu_maker start-domain /EXAVMIMAGES/conf
   /final-test08adm01vm01.example.com-vm.xml

5. Once the guest is running, use the ip addr command to verify the interface is valid.

   The following example checks the eth1 interface.

   # ip addr show eth1
   eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
     link/ether 00:16:3e:53:56:00 brd ff:ff:ff:ff:ff:ff
     inet 10.129.19.34/21 brd 10.129.23.255 scope global eth1
        valid_lft forever preferred_lft forever