1997•Journal of the Magnetics Society of JapanOpen access

Multi-Threaded I/O in Disk Array

Dan Feng, Hai Jin, Peng Cheng, Jiangling Zhang

Abstract

A disk array structure based on PCI-SCSI adapter and some SCSI disk drives is given and a multi-threaded I/O algorithm is presented in the paper. The time sequence of the multi-threaded I/O scheduling is analyzed. Compared with the sequential I/O, the response time for the multi-threaded I/O is reduced greatly, especially for that the disk service time is large and/or the I/O data size is large. The multi-threaded I/O is one of ways to get high performance in disk array.

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Key concepts: SCSI, Disk array, Disk buffer, Computer science, Adapter (computing), Hard disk drive performance characteristics, Parallel computing, Computer hardware