Enable the Use of a SCSI Controller

1. Create an XML file for the SCSI controller. In this example, it is called virt-scsi.xml.

   [root@localhost~]# cat /root/virt-scsi.xml 
   <controller type='scsi' index='0' model='virtio-scsi'> 
   <address type='pci' domain='0x0000' bus='0x00' slot='0x0b'function='0x0'/> 
   </controller> 

   Make sure that the slot used for the virtio-scsi controller does not conflict with another device.
2. Associate this controller with the XML template of the VM-Series firewall.

   [root@localhost~]# virsh attach-device --config <VM-Series_name> /root/virt-scsi.xml 
   Device attached successfully 

3. Enable the firewall to use the SCSI controller.

   [root@localhost~]# virsh attach-disk <VM-Series_name>/var/lib/libvirt/images/PA-VM-6.1.0-c73.qcow2
   sda --cache none --persistent 
   Disk attached successfully 

4. Edit the XML template of the VM-Series firewall. In the XML template, you must change the target disk and the disk bus, used by the firewall.

   By default, the XML template is stored at etc/libvirt/qemu.

   <disk type='file' device='disk'> 
         <driver name='qemu' type='qcow2' cache='writeback'/> 
         <source file='/var/lib/libvirt/images/PA-VM-7.0.0-c73.qcow2'/> 
         <target dev='sda' bus='scsi'/> 
         <address type='drive' controller='0' bus='0' target='0' unit='0'/> 
   </disk>