Technological impact of magnetic hard disk drives on storage systems

Grochowski, E.; Halem, R. D.

doi:10.1147/sj.422.0338

Cited by 109 publications

(61 citation statements)

References 6 publications

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“…Areal density, cost, and capacity The growth in disk areal density [4] was striking in the late 1990s and early 2000s, but then it slowed. Figure 1 shows that the compound annual growth rate (CAGR) for disk drive areal density started to drop in 2004 from approximately 100% to 40% (see red line) [5].…”

Section: Disk Technology Trendsmentioning

confidence: 99%

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Storage-class memory: The next storage system technology

2008

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The dream of replacing rotating mechanical storage, the disk drive, with solid-state, nonvolatile RAM may become a reality in the near future. Approximately ten new technologies-collectively called storage-class memory (SCM)-are currently under development and promise to be fast, inexpensive, and power efficient. Using SCM as a disk drive replacement, storage system products will have random and sequential I/O performance that is orders of magnitude better than that of comparable disk-based systems and require much less space and power in the data center. In this paper, we extrapolate disk and SCM technology trends to 2020 and analyze the impact on storage systems. The result is a 100-to 1,000-fold advantage for SCM in terms of the data center space and power required.

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Section: Disk Technology Trendsmentioning

confidence: 99%

“…See References [4] and [5] for additional background. average rotational latency is half the rotation period.…”

Section: Figurementioning

confidence: 99%

Storage-class memory: The next storage system technology

2008

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“…In both scenarios we are always adding between 30% and 50% [3] [2] of the current capacity and use disks according to technology's trends of hard disks [3] corresponding to each migration. Table 2 shows the features of the disks used by the SS in both scenarios.…”

Section: Configurations Studiedmentioning

confidence: 99%

“…Delivering improved performance I/O, increased capacity and strong data availability, have been the traditional aims when designing storage systems Scalability of storage systems is as important, or even more important to current applications than the aims above-mentioned mainly because of the constant growth of new data (at an annual rate of 30% [1] and even 50% for several applications [2]) and the rapid decline in the cost of storage per GByte [3], which have led to an increased interest in storage systems able to upgrade their capacity online.…”

Section: Introductionmentioning

confidence: 99%

“…The heterogeneity management: the periodical upgrade of storage systems results in heterogeneous storage environments because a constant improvement in disk capabilities has been observed year after year [3] [5]. Therefore, the addition of new disks requires a compromise between taking advantage of disks with higher capabilities [6] and avoiding wasting disk capacity and/or performance.…”

Section: Introductionmentioning

confidence: 99%

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Distributing Orthogonal Redundancy on Adaptive Disk Arrays

Gonzalez-Compeán

Cortes

2008

On the Move to Meaningful Internet Systems: OTM 2008

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Abstract. When upgrading storage systems, the key is migrating data from old storage subsystems to the new ones for achieving a data layout able to deliver high performance I/O, increased capacity and strong data availability while preserving the effectiveness of its location method. However, achieving such data layout is not trivial when handling a redundancy scheme because the migration algorithm must guarantee both data and redundancy will not be allocated on the same disk. The Orthogonal redundancy for instance delivers strong data availability for distributed disk arrays but this scheme is basically focused on homogeneous and static environments and a technique that moves overall data layout called re-striping is applied when upgrading it. This paper presents a deterministic placement approach for distributing orthogonal redundancy on distributed heterogeneous disk arrays, which is able to adapt on-line the storage system to the capacity/performance demands by only moving a fraction of data layout. The evaluation reveals that our proposal achieve data layouts delivering an improved performance and increased capacity while keeping the effectiveness of the redundancy scheme even after several migrations. Finally, it keeps the complexity of the data management at an acceptable level.

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Evolution of Networks into Networking

Stenzel¹

2010

CIO Best Practices

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Technological impact of magnetic hard disk drives on storage systems

Cited by 109 publications

References 6 publications

Storage-class memory: The next storage system technology

Storage-class memory: The next storage system technology

Distributing Orthogonal Redundancy on Adaptive Disk Arrays

Evolution of Networks into Networking

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