Main title: Be careful, this setting will cause your vm to be forced to reinstall the system when it restarts!
Subtitle: On the meaning of "variable" in computing schemes
It is easy for first-time users to make mistakes, mistaking this option as the parameters set here, which can be adjusted in the future use process. Actually not, the word CloudStack English version means isVolatile (volatile). The Chinese translation is misleading and ambiguous!
The official explanation is:
isVolatile: If checked, VMs created from this service offering will have their root disks reset upon reboot. This is useful for secure environments that need a fresh start on every boot and for desktops that should not retain state.
Translated That is, if checked, the VM created by this service scheme will reset the boot disk (root disk) when it is restarted. This is useful for secure environments where you don't need to save the desktop state and start fresh every time!