Reliability, availability, recovery, and unavailability are related concepts. These measures caused local shortages of meat and the unavailability of white bread. Data loss is distinguished from data unavailability, which may arise from a network outage. This is largely due to the unavailability of reliable data. Legumes are often able to colonize early successional environments due to the unavailability of nutrients. There were reports of product reliability issues, and a brief period of unavailability. This can be due to the unavailability of toilet paper or water. This addresses problems related to unavailability of service provided by the system or the program. Participants in Startup Istanbul week also complained about the unavailability of infrastructure. Canadian expatriates have long lamented the bar's relative unavailability outside Canada. Other privileges are also a source of unavailability. He agreed to do the film "Blue Thunder" to ensure his unavailability for "Jaws 3-D". Goldsmith's unavailability led to composer Brian Tyler taking over.