Petal: Distributed Virtual Disks (1996)
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| Venue: | In Proceedings of the Seventh International Conference on Architectural Support for Programming Languages and Operating Systems |
| Citations: | 299 - 3 self |
BibTeX
@INPROCEEDINGS{Lee96petal:distributed,
author = {Edward Lee and Ramohan A. Thekkath},
title = {Petal: Distributed Virtual Disks},
booktitle = {In Proceedings of the Seventh International Conference on Architectural Support for Programming Languages and Operating Systems},
year = {1996},
pages = {84--92}
}
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Abstract
The ideal storage system is globally accessible, always available, provides unlimited performance and capacity for a large number of clients, and requires no management. This paper describes the design, implementation, and performance of Petal, a system that attempts to approximate this ideal in practice through a novel combination of features. Petal consists of a collection of networkconnected servers that cooperatively manage a pool of physical disks. To a Petal client, this collection appears as a highly available block-level storage system that provides large abstract containers called virtual disks. A virtual disk is globally accessible to all Petal clients on the network. A client can create a virtual disk on demand to tap the entire capacity and performance of the underlying physical resources. Furthermore, additional resources, such as servers and disks, can be automatically incorporated into Petal. We have an initial Petal prototype consisting of four 225 MHz DEC 3000/700 work...
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