to create a lot of vms, e.g. a lot of VDI, you can call fsimkvm on the master.

Example of usage:

fsimkvm -v VDI_DEV -n PROD_VDI_VLAN_222 -p 9 -s fc -m 35 -o 4 -f 1601 -a 1699 -d 100GiB -r 8GiB -c 4 -b "Big VDI VM"
fsimkvm -v VDI_PROD_NAME_  -n PROD_VLAN_333 -s fc -m 28 -o 5 -f 1486 -a 1499  -b "Standard VDI"
fsimkvm -v VDI  -n PROD_VLAN_334 -p 4 -s fc -m 28 -o 5 -f 1500 -a 1503  -b "Standard VDI"
fsimkvm -v VM  -n PROD_VLAN_335 -s fc -m 29 -o 5 -f 1504 -a 1551  -b "Normal VM"