There were no available servers to start VM

While booting your VM (Virtual Machine) if you come across this error, this means that either your host has run out of memory or the VM template is looking for more memory than available.

Scenario 1: XenServer is out of Memory:

Go To Search Tab for XenServer and see if that host has sufficient resources. If yes, then move to scenario 2 else get some memory resource.

Scenario 2: VM Template is looking for memory than allocated

1.       Select your Virtual Machine

2.       Right Click on it and go to its properties

3.       Move down to last option called “Advanced Options “.

 

4.       It would say “Optimize manually” and would have some random number as its value.

5.       Select optimize for general use.

6.       Click OK

7.       Boot your VM. It will boot without any issue.