Title :
Improving RAID-5 Performance by Un-striping Moderate-Sized Files
Author :
McMurdy, Ronald K. ; Roysam, Badrinath
Author_Institution :
Rensselaer Polytechnic Institute, Troy, New York
Abstract :
A method to reduce the average operation time, and increase the transfer rate of RAID-5 disk arrays is presented, along with quantitative models for these paramaers as a funcrion of load. The modified controller allocates moderate sized files (1-20 sectors), and parity information for groups of consecutive sectors, entirely on one disk, avoiding the compounding of latency and queuing delaysfor multiple disks.
Keywords :
Computational modeling; Delay; Disk drives; File systems; Interleaved codes; Mathematical model; Parallel processing; Tiles; Tracking;
Conference_Titel :
Parallel Processing, 1993. ICPP 1993. International Conference on
Conference_Location :
Syracuse, NY, USA
Print_ISBN :
0-8493-8983-6
DOI :
10.1109/ICPP.1993.103
