Hello,
I have added a validation in validate() method in runvmcommand.java.
if the validation failed then I have added
failValidation(EngineMessage.INITIALIZATION_FAIL_SINCE_VM_DISK_IS_IN_BACKUP_STORAGE);
Now I want to know that where to declare it, in
frontend/webadmin/modules/webadmin/src/main/resources/org/ovirt/engine/ui/frontend/AppErrors.properties