Disk System Architectures for High Performance Computing
Disk System Architectures for High Performance Computing
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DOI：
10.1109/9780470544839.ch2
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
R. Buyya;Toni Cortes;Hai Jin
中科院分区：
文献类型：
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作者：
R. Buyya;Toni Cortes;Hai Jin
由于I/O和CPU速度之间的不匹配，高性能计算机长期以来一直被迫面临根本的I/O瓶颈。随着微型计算机和小型计算机的处理能力和内存大小继续快速增长，它们也将受到I/O限制。许多硬件和软件方法，如并行读出磁盘，扩展存储（例如，固态磁盘）和磁盘条带化，已被用于增加I/O带宽，从而缩小CPU-I/O性能差距。此外，小直径（5.25英寸和3.5英寸）磁盘驱动器的进步推动了新的发展，如果大量设备可以组织成磁盘阵列，则可以保证非常高的I/O带宽。在本文中，我们回顾了最先进的磁盘设备和I/O控制器，并将描述基于廉价磁盘冗余阵列（RAID）的高性能I/O的新方法。
Because of the mismatch between I/O and CPU speeds, high-performance computers have long been forced to confront the fundamental I/O bottleneck. As processing power and memory size continue to grow rapidly for micro- and minicomputers, they too will become I/O limited. A number of hardware and software approaches such as parallel read-out disks, expanded storage (for example, solid-state disks), and disk striping, have been used to increase I/O bandwidth and thus narrow the CPU-I/O performance gap. In addition, new developments driven by advances in small-diameter (5.25-in and 3.5-in) disk drives, promise very high I/O bandwidth if large numbers of devices can be organized into arrays of disks. In this paper we review the state of the art in disk devices and I/O controllers, and will describe new approaches for very high-performance I/O based on redundant arrays of inexpensive disks (RAIDs).