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Massive arrays of idle disks for storage archives (2002)
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| Venue: | In Proceedings of the 2002 ACM/IEEE conference on Supercomputing |
| Citations: | 167 - 0 self |
BibTeX
@INPROCEEDINGS{Colarelli02massivearrays,
author = {Dennis Colarelli and Dirk Grunwald},
title = {Massive arrays of idle disks for storage archives},
booktitle = {In Proceedings of the 2002 ACM/IEEE conference on Supercomputing},
year = {2002}
}
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Abstract
The declining costs of commodity disk drives is rapidly changing the economics of deploying large amounts of online or near-line storage. Conventional mass storage systems use either high performance RAID clusters, automated tape libraries or a combination of tape and disk. In this paper, we analyze an alternative design using massive arrays of idle disks, or MAID. We argue that this storage organization provides storage densities matching or exceeding those of tape libraries with performance similar to disk arrays. Moreover, we show that with effective power management of individual drives, this performance can be achieved using a very small power budget. In particular, we show that our power management strategy can result in the performance comparable to an always-on RAID system while using the power of such a RAID system. 1
Keyphrases
massive array idle disk storage archive raid system small power budget storage organization near-line storage power management strategy storage density individual drive alternative design conventional mass storage system high performance raid cluster commodity disk drive large amount effective power management always-on raid system tape library
