A highly recoverable, reliable and efficient transaction oriented file service for a distributed environment

We demonstrate that it is possible to have a file facility architecture where separate interfaces are provided for the basic file service and transaction oriented file service. Thus, depending upon the requirement a user can perform I/O on a file either using the semantics of the basic file service or the transaction oriented file service. The concept of stable storage is exploited to make our design very reliable. To achieve the best possible performance we have successfully established a very fruitful and yet new relationship among the storage policy of file data and the methods to make changes in the intentions list permanent to commit a transaction