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This report presents a logical design of the disk and basic le services for ResearcH Oriented Distributed Operating System. The design follows the layered approach and presents a clean interface at each level. Our design has very eeciently dealt with the typical problem of loss in performance due to disk I/O. This is achieved by using separate strategies… (More)
This report presents the logical design of the distributed le facility for RHODOS (ResearcH Oriented Distributed Operating System). This design ooers, in general, the same services as a c e n tralized le system, i.e., block service, le service and disk service. However, because of performance, reliability, and distribution reasons the following additional… (More)
In this paper a high performance and adaptive commit protocol is presented. The proposed protocol is the result of research into developing a very important relationship between the file storage strategy and techniques to commit transactions. It is demonstrated that the proposed protocol is capable of combining the powers of different methods for committing… (More)
This report presents the design and implementation of the terminal driver for RHODOS.
In this report we present a new le facility architecture where a separate interface is provided to speedup processing of transaction oriented le operations. This interface is event driven and ensures that maximum number of transaction oriented le operations are processed and supervised at a client's workstation. Furthermore, it eeciently coordinates the… (More)