Unable to use second Big Disk in VM at creation time

[marcheschi]

@YanChii this is similar to the other issue #561 #563 but happens when I try to add a big disk to vm at creation time.
this is the error

Got bad return code (3). Error: Command failed: cannot create 'zones/j4carelogms/disk1': out of space

cannot open 'zones/j4carelogms': dataset does not exist
cannot open 'zones/j4carelogms/disk0': dataset does not exist
Unable to start VM j4carelogms: bad statusCode: 404  

This is annoying because I can add a disk in the other Virtual datacenter that Has the same hardware configuration of this physical server (Also same brand and disks). Obviously there is something different.

I found a workaround

1. Create a VM with 1 disk
2. Stop the VM
3. Add the big disk 2T , and update configuration
4. Start the updated VM
   In this way I can add the disk and the vm is running.