Sometimes when I´m doing a deployment of various VM via scripting in my test lab and some thing fail for some reason as my smb file share are out of space or something like this the ip assigned to the machine is blocked… you have not the new virtual machine and you loose one ip from the pool.
The solution to that situation is the following:
First of all execute from PS Get-SCIPAddress
Second we seek the name of the virtual machine bad deployed and we copy the ip address.
Third we execute the following command with the ip address that we want to liberate $ip = get-scipaddress -IPAddress “100.64.35.122”
Fourth we execute the command $ip | revoke-scipaddress to recover the ip.
Also, is more easy to do from the GUI… then go to Fabric Pane/Logical Networks and there over the Pool where you are deploying vms do right click and push on Inactive Address. Select All and push Release. Easy no? 🙂