Fault-Tolerant Computing, International Symposium on (1995)
June 27, 1995 to June 30, 1995
Harrick M. Vin , University of Texas at Austin
Prashant J. Shenoy , University of Texas at Austin
Sriram Rao , University of Texas at Austin
In this paper, we present a novel disk failure recovery method that utilizes the inherent redundancy in video streams (rather than error-correcting codes) to ensure that the user-invoked on-the-fly failure recovery process does not impose any additional load on the disk array. We also present a disk array architecture that enhances the scalability of multimedia servers by: (1) integrating the recovery process with the decompression of video streams, and thereby distributing the reconstruction process across the clients; and (2) supporting graceful degradation in the quality of recovered images with increase in the number of disk failures.
Multimedia storage servers, redundant disk arrays, fault tolerance, video compression algorithms, layered encoding techniques
S. Rao, P. J. Shenoy and H. M. Vin, "Efficient Failure Recovery in Multi-Disk Multimedia Servers," Fault-Tolerant Computing, International Symposium on(FTCS), Pasadena, California, 1995, pp. 0012.