Efficient data layout scheme for multi-disks continuous media servers

Yueh Min Huang, Shiao-Li Tsao

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Recently, zoning technique has been widely applied to disks to increase their capacities. Under the technique, an interesting feature of a disk is that there are a number of various bandwidths on it. Herein, a novel data layout scheme called cluster-pairing on efficiently exploiting this feature for continuous media (CM) servers is proposed. We first applied track-pairing method between a pair of homogeneous disks, and then partitioned each disk into a same number of clusters to facilitate the retrieval of region-based data placement. The proposed method can take the advantages of track-pairing and region-based data placement schemes to fully utilize the various bandwidths from zoned-disks and meanwhile reduce the seek time overhead. According to the simulation results, the disk throughput after applying our approach can be promoted by 35% to 65% than that of the traditional data striping strategies, 10% to 30% than that of region-based data placement method, and about 10% than that of track-pairing scheme. And the wasted storage space is less than 1% which is negligible in terms of the improvement of the disk throughput.

Original languageEnglish
Pages (from-to)147-166
Number of pages20
JournalMultimedia Tools and Applications
Volume9
Issue number2
DOIs
StatePublished - 1 Jan 1999

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