Check out the new USENIX Web site.

Home About USENIX Events Membership Publications Students
FAST '03 Abstract

Façade: Virtual Storage Devices with Performance Guarantees

Christopher R. Lumb, Carnegie Mellon University; Arif Merchant, Hewlett-Packard Labs; and Guillermo A. Alvarez, IBM Almaden Research Center


High-end storage systems, such as those in large data centers, must service multiple independent workloads. Workloads often require predictable quality of service, despite the fact that they have to compete with other rapidly-changing workloads for access to common storage resources. We present a novel approach to providing performance guaran-tees in this highly-volatile scenario, in an efficient and cost-effective way. Façade, a virtual store controller, sits between hosts and storage devices in the network, and throttles individual I/O requests from multiple clients so that devices do not saturate. We implemented a prototype, and evaluated it using real workloads on an enterprise storage system. We also instantiated it to the particular case of emulating commercial disk arrays. Our results show that Façade satisfies performance objectives while making efficient use of the storage resources—even in the presence of of failures and bursty workloads with stringent performance requirements.
  • View the full text of this paper in HTML and PDF.
    Click here if you have forgotten your password Until May 2004, you will need your USENIX membership identification in order to access the full papers. The Proceedings are published as a collective work, © 2003 by the USENIX Association. All Rights Reserved. Rights to individual papers remain with the author or the author's employer. Permission is granted for the noncommercial reproduction of the complete work for educational or research purposes. USENIX acknowledges all trademarks within this paper.

  • If you need the latest Adobe Acrobat Reader, you can download it from Adobe's site.
To become a USENIX Member, please see our Membership Information.

?Need help? Use our Contacts page.

Last changed: 7 Nov. 2003 jel
Technical Program
FAST '03 Home