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Improved RAID 5 controller using load-balanced destage algorithm

Improved RAID 5 controller using load-balanced destage algorithm

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  • Author(s): B.Y. Kim 1  and  Y.S. Chang 2
    • View affiliations
    • Affiliations: 1: Interdisciplinary Program in Medical and Biological Engineering Major, Seoul National University, Seoul, Korea
      2: Department of Computer Engineering, Daejin University, Kyunggi-do, Korea
  • Source: Volume 34, Issue 3, 5 February 1998, p. 248 – 250
    DOI:  10.1049/el:19980127 , Print ISSN 0013-5194, Online ISSN 1350-911X
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In the existing RAID 5 controllers, destage algorithms do not take into consideration the overall performance of the disk array but rather the optimal performance at each individual disk, and this may eventually decrease the RAID performance. This authors suggest a new RAID 5 controller using a load-balanced destage algorithm adopted at the disk array level, and show that the new controller has a higher performance than existing controllers.

Inspec keywords: redundancy; controllers; magnetic disc storage

Other keywords: RAID 5 controller; load-balanced destage algorithm; disk array

Subjects: Storage on moving magnetic media; Controllers

References

    1. 1)
      • Menon, J.J., Mattson, D.: `Performance of disk arrays in transaction processing environments', Proc. 12th Int. Conf. on Distributed Computing Systems, 1992, p. 302–309.
    2. 2)
      • Ruemmler, C., Wilkes, J.: `UNIX disk access patterns', Proc. Winter 1993 USENIX Conf., 1993, p. 405–420.
    3. 3)
      • J.J. Menon . Performance of RAID 5 disk arrays with read and write caching. Distrib. Parallel Databases , 261 - 293
    4. 4)
      • Varma, A., Jacobson, Q.: `Destage algorithms for disk arrays with non-volatile caches', Proc. 22th Int. Symp. on Computer Architecture, 1995, p. 83–95.
    5. 5)
      • P.M. Chen , K.G. Lee , G.A. Gibson , R.H. Katz , D.A. Patterson . RAID: high performance, reliable secondary storage. ACM Comp. Surv. , 2 , 145 - 188
    6. 6)
      • Patterson, D.A., Gibson, G.A., Katz, R.H.: `A case for redundant arrays of inexpensive disks (RAID)', Proc. ACM SIGMOD, 1988, p. 109–116.
    7. 7)
      • C. Ruemmler , J. Wilkes . An introduction to disk drive modeling. IEEE Comput. , 3 , 17 - 28
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