High density recording method for magneto-optical disk

Furukawa, Teruo; Nakane, K.; Arai, R.

doi:10.1109/20.92166

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…When the same mechanism is applied to multimedia systems, overheads in disk I/O can result in dramatic deterioration in system performance. Increasing attention has been paid to raising recording density for reducing data transfer time in order to achieve high throughput (Furukawa et al 1988; Katz et al 1989;Speliotis 1989; Arnett and Lam 1990;Nakagomi et al 1993; Oyang et al 1995).…”

Section: Introductionmentioning

confidence: 99%

Improving multimedia systems performance using constant-density recording disks

Tse

Leung

2000

Multimedia Systems

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Multimedia systems store and retrieve large amounts of data which require extremely high disk bandwidth and their performance critically depends on the efficiency of disk storage. However, existing magnetic disks are designed for small amounts of data retrievals geared to traditional operations; with speed improvements mainly focused on how to reduce seek time and rotational latency. When the same mechanism is applied to multimedia systems, overheads in disk I/O can result in dramatic deterioration in system performance. In this paper, we present a mathematical model to evaluate the performance of constant-density recording disks, and use this model to analyze quantitatively the performance of multimedia data request streams. We show that high disk throughput may be achieved by suitably adjusting the relevant parameters. In addition to demonstrating quantitatively that constant-density recording disks perform significantly better than traditional disks for multimedia data storage, a novel disk-partitioning scheme which places data according to their bandwidths is presented.

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