I am doing some VDI testing in my home lab and I need a bit more storage than is available in the default NAS build included with AutoLab. Fortunately it is very easy to add more storage to the FreeNAS VM and it can even be done without taking the NAS VM offline.
Just edit settings on the AutoLab NAS VM and add a new SCSI Hard Disk whatever size you need (I am adding 80GB). Once the new disk has been added to the VM log on to the AutoLab FreeNAS and perform Rescan Disk from the Disks Menu -> Management
This makes the new disk available to FreeNAS.
Now you need to add the disk so that you begin configuring it.
Disks Menu -> Management -> Add
Select the new disk (da2 in this case) and add a description. Format the file system UFS. The other settings can be left default.
Once the physical drive has been added it needs to be formatted.
Disks Menu -> Format
Select the new disk, file system type, and give it a volume label. You will receive a warning that all data on the disk will be lost, click OK and the disk will be formatted.
The NFS storage is now ready to be added to the lab environment.
Repeat the process for each host to mount the new NFS datastore. Since adding this NFS datastore is not part of the autobuilds it will need to be done manually whenever you rebuild the environment. Fortunately as long as you do not rebuild the NAS VM the new mount (and any VMs stored on it) will remain intact.