Tutorial on storage technology: RAID and beyond

  • Authors:
  • Garth A. Gibson

  • Affiliations:
  • School of Computer Science, Carnegie Mellon University, Pittsburgh, PA

  • Venue:
  • SIGMOD '95 Proceedings of the 1995 ACM SIGMOD international conference on Management of data
  • Year:
  • 1995

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Abstract

In stark contrast to the 25% per year increase in areal density delivered by the magnetic disk industry during the 1970s and 1980s, yearly increases today are 60%, on par with DRAM density increases. Moreover, the storage industry is also delivering substantially higher data rates, smart disk-embedded readahead and writebehind, and a new generation of high-speed serial interconnects. This industry has also embraced Redundant Arrays of Inexpensive (or Independent) Disks (RAID) technology - 1997's RAID market is expected to be 13 billion dollars. With this rapidly evolving market and technology base, parallel storage systems must evolve beyond RAID levels 1 through 5. This talk is intended for researchers and practitioners interested in current trends in storage systems. It will highlight storage technology trends, RAID technology trends, and trends toward RAID-style support for network-based parallel storage systems.