# Creating an Nth disk drive for a VM

```
fallocate -l 500G /store/images/ran.psg.com.sdb
ls -lh /store/images/ran.psg.com.sdb
chown libvirt-qemu:mlocate /store/images/ran.psg.com.sdb
l -lh /store/images/ran.psg.com.sdb
chmod 600 /store/images/ran.psg.com.sdb
```

Create an xml file describing the disk

```
cat > ran.sdb.xml
<disk type='file' device='disk'>
        <driver name='qemu' type='raw' cache='none'/>
        <source file='/store/images/ran.psg.com.sdb'/>
        <target dev='vda'/>
	</disk>
```

Attach the new store to the VM

```
virsh attach-device ran.psg.com ran.sdb.xml 
```

You will have to reboot the VM to see the device.  

Then you can 

```
mkfs.ext4 /dev/vda
```

Edit /etc/fstab and mount the new volumey