Reliability and performance of RAIDs - Magnetics, IEEE Transactions on
نویسنده
چکیده
We define and analyze the ACATS declustering scheme for use with the classic Level 5 as well as MDS RAIDs. ACATS provides a paradigm for distributed sparing and checking as well. Using Markov models we calculate the reliability of classic Level 5 as well as MDS RAIDs both with and without ACATS. Our results demonstrate, for fixed hardware configurations, tradeoffs between performance and reliability within these RAID organizations. Our analysis assumes a transaction oriented environment.
منابع مشابه
Integration of semiconductor and ceramic superconductor devices for microwave applications - Magnetics, IEEE Transactions on
Due to the very low-loss properties of ceramic superconductors high-performance microwave resonators and filters can be realized. The fact that these devices may be operated at liquid nitrogen temperature, facilitates the integration with semiconductor devices. Examples are bandpass amplifiers, microwave-operated SQUIDS combined with GaAs preamplifiers, detectors, and MOSFET low-frequency ampli...
متن کاملA Thin-Film Piezoelectric Impact Sensor Array Fabricated on a Si Slider for Measuring Head-Disk Inte - Magnetics, IEEE Transactions on
A new type of Acoustic Emission sensor using a thin film piezoelectric material (sputtered ZnO) was developed for measuring head-disk interaction in a rigid magnetic disk system. The sensor is mounted on a Si slider (length : 3 mm) and was fabricated using micro-machining techniques in our on-going efforts to downsize sliders. Some fundamental tests of the sensor were conducted : sensitivity an...
متن کاملMagneto-Optical Properties of Sr-Ferrite Films Produced by Pulsed Laser Ablation - Magnetics, IEEE Transactions on
The effect of substrate temperature and oxygen pressure on the microstructure and magneto-optical (m-0) properties of Sr-ferrite films grown on (001) single crystal sapphire substrates by pulsed laser deposition has been investigated. The results demonstrated that smooth c-axis oriented films, could only be prepared at a narrow operational window of the useful oxygen pressure and at high substr...
متن کاملThe Design of Large-Scale, Do-It-Yourself RAIDs
In this paper we explore the design of “Do-It-Yourself” RAIDs: RAID systems that can assembled by the end user from commercially available disks, enclosures, cables, racks, computers, and networks. We quantitatively evaluate the tradeoffs in cost, performance, and reliability of these DIY-RAID systems. Our principal result is an architecture that scales from 10s to 1000s of disks; we demonstrat...
متن کاملState of the Journal
Dimitris Gizopoulos is a professor in the Department of Informatics & Telecommunications, the National and Kapodistrian University of Athens where he leads the Computer Architecture Laboratory. His research focuses on the dependability, performance, and power efficiency of computing systems architectures built around high-performance and embedded multicore CPUs as well as GPUs. He has published...
متن کامل