| H. Garcia-Molina and K. Salem, "The impact of disk striping on reliability," IEEE Database Engineering Bulletin, vol. 11, pp. 26--39, Mar. 1988. |
....a catastrophic failure, or a software error, render the storage mediator inoperative. For any long term storage system, reliability is an important concern. In an architecture that uses disk striping [8] the increased number of devices increases the probability that some will be inoperative [9]. Through the appropriate use of redundancy, the reliability of the system can be enhanced to any desired level. The solution we have chosen for Swift is to use redundant storage for erasure correcting codes [4] By using the error detecting capabilities of the disks, a single parity disk is ....
....the reliability of the system can be enhanced to any desired level. The solution we have chosen for Swift is to use redundant storage for erasure correcting codes [4] By using the error detecting capabilities of the disks, a single parity disk is sufficient to tolerate a single failure [9, 4]. In this way, if a disk fails then the information on the other disks can be used to reconstruct 3 it. The Swift architecture provides the distinct advantage that the application can choose its reliability level. Since data transfer is segment based, each transfer plan can specify a required ....
H. Garcia-Molina and K. Salem, "The impact of disk striping on reliability," IEEE Database Engineering Bulletin, vol. 11, pp. 26--39, Mar. 1988.
....the reconstruction of all objects by scavenging the data in the storage agents, should a catastrophic failure, or a software error, render the storage mediator inoperative. By using the error detecting capabilities of the disks, a single parity disk is sufficient to tolerate a single failure [17,3]. In this way, if a disk fails it can be reconstructed using the information on the other disks. Higher level erasure correcting codes can be used if more than one failure is to be tolerated [18] 3 Ethernet based Prototype of Swift A simplified prototype of the Swift architecture has been built ....
H. Garcia-Molina and K. Salem, "The impact of disk striping on reliability," IEEE Database Engineering Bulletin, vol. 11, pp. 26--39, Mar. 1988.
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