1. A method comprising: a computer system creating one or more first storage objects, wherein the one or more first storage objects are created to have individual or collective properties; the computer system creating a second storage object out of the one or more first storage objects, wherein the second storage object depends on the individual or collective properties of the one or more first storage objects; the computer system receiving information that at least one of the individual or collective properties of the one or more first storage objects has changed and that the second storage object can no longer depend on the individual or collective properties of the one or more first storage objects; the computer system responding after receiving the information.