This report describes the design and implementation of a remote file access mechanism that has been added to Berkeley UNIX 4.2BSD. The mechanism allows for access to remote files in a manner transparent to the user. This is accomplished through the use of remote mounts. A remote mount allows portions of a foreign file system to appear locally accessible to a user. This mechanism allows the user...

Some of the universities in Malaysia are still implementing hybrid Electronic Theses and Dissertations (ETD) approach in managing Theses and Dissertations (TD). One of the limitations of the hybrid ETD approach is its online cataloguing method, which is only available at the physical location of the TD instead of enabling the information to be retrieved online. Maintaining the performance and t...

Existing file access predictors keep track of previous file access patterns and rely on a single heuristic to predict which of the previous successors to the file being currently accessed is the most likely to be accessed next. We present here a novel composite predictor that applies multiple heuristics to this selection problem. As a result, it can make use of specialized heuristics that can m...

This paper presents the implementation of the ORFA client. ORFA aims at providing an efficient access to remote file systems through high-speed local networks such as MYRINET. The ORFA client is a lightweight shared library that may be pre-loaded to override standard file access routines to allow remote file access for any legacy application. In ORFA, virtual file descriptors have been designed...

DATA TYPES Each program layer consists of one or more abstract data types (monitors and classes). Resource management A fifo class implements a first-in, first-out queue that is used to maintain multiprocess queues and message buffers. A resource monitor gives processes exclusive access to a computer resource. It is used to control disk access. A typewriter resource monitor gives processes excl...

Cloud computing promises large-scale and seamless access to vast quantities of data across the globe. Applications will demand the reliability, consistency, and performance of a traditional cluster file system regardless of the physical distance between data centers. Panache is a scalable, high-performance, clustered file system cache for parallel data-intensive applications that require wide a...

Distributed File Systems have long utilized file caching techniques to improve performance. In many DFS’s clients are allowed to update the cached replicas of files, necessitating a variety of mechanisms that ensure the consistency of other replicas of these files across the network. This problem becomes complicated if there are many unstable files on the network, and especially so if there are...

In this paper, we propose a file replication method to achieve load balancing in terms of write access to storage device (“write storage access load balancing” for short) in unstructured peer-to-peer (P2P) file-sharing networks in which the popularity trend of queried files varies dynamically. The proposed method uses a write storage access ratio as a load balance index value in order to stabil...