Design and reliability analysis of high-speed and sustained data recording system based on disk array

Changlong Jiang; Cheng Ma; Ning He; Xugang Zhang; Chongyang Wang; Huibo Jia

doi:10.1117/12.455598

10 December 2002 Design and reliability analysis of high-speed and continuous data recording system based on disk array

Changlong Jiang, Cheng Ma, Ning He, Xugang Zhang, Chongyang Wang, Huibo Jia

Proceedings Volume 4861, Multimedia Systems and Applications V; (2002) https://doi.org/10.1117/12.455598
Event: ITCom 2002: The Convergence of Information Technologies and Communications, 2002, Boston, MA, United States

Abstract

In many real-time fields the sustained high-speed data recording system is required. This paper proposes a high-speed and sustained data recording system based on the complex-RAID 3+0. The system consists of Array Controller Module (ACM), String Controller Module (SCM) and Main Controller Module (MCM). ACM implemented by an FPGA chip is used to split the high-speed incoming data stream into several lower-speed streams and generate one parity code stream synchronously. It also can inversely recover the original data stream while reading. SCMs record lower-speed streams from the ACM into the SCSI disk drivers. In the SCM, the dual-page buffer technology is adopted to implement speed-matching function and satisfy the need of sustainable recording. MCM monitors the whole system, controls ACM and SCMs to realize the data stripping, reconstruction, and recovery functions. The method of how to determine the system scale is presented. At the end, two new ways Floating Parity Group (FPG) and full 2D-Parity Group (full 2D-PG) are proposed to improve the system reliability and compared with the Traditional Parity Group (TPG). This recording system can be used conveniently in many areas of data recording, storing, playback and remote backup with its high-reliability.

Citation Download Citation

Changlong Jiang, Cheng Ma, Ning He, Xugang Zhang, Chongyang Wang, and Huibo Jia "Design and reliability analysis of high-speed and continuous data recording system based on disk array", Proc. SPIE 4861, Multimedia Systems and Applications V, (10 December 2002); https://doi.org/10.1117/12.455598

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