There must be an operation for the admin user to tell the controller that a host has became unusable. The controller in turn must mark persistent data stored on the crashed host as lost. The lost disk images can be returned using the 'recovery' operation.
There must be an operation for the admin user to tell the controller that a host has became unusable. The controller in turn must mark persistent data stored on the crashed host as lost. The lost disk images can be returned using the 'recovery' operation.