Sciweavers

FTCS
1993

Disk Array Storage System Reliability

13 years 5 months ago
Disk Array Storage System Reliability
Fault tolerance requirements for near term disk array storage systems are analyzed. The excellent reliability provided by RAID Level 5 data organization is seen to be insu cient for these systems. We consider various alternatives { improved MTBF and MTTR times as well as smaller reliability groups and increased numbers of check disks per group { to obtain the necessary improved reliability. The paper begins by introducing two data organization schemes based on maximum distance separable error correcting codes. Several gures of merit are calculated using a standard Markov failure and repair model for these organizations. Based on these results, the multiple check disk approach to improved reliability is an excellent option.
Walter A. Burkhard, Jai Menon
Added 02 Nov 2010
Updated 02 Nov 2010
Type Conference
Year 1993
Where FTCS
Authors Walter A. Burkhard, Jai Menon
Comments (0)