Check out the new USENIX Web site.

USENIX Home . About USENIX . Events . membership . Publications . Students
FAST '04 — Abstract

Pp. 101-114 of the Proceedings

A Performance Comparison of NFS and iSCSI for IP-Networked Storage

Peter Radkov, University of Massachusetts; Li Yin, University of California, Berkeley; Pawan Goyal and Prasenjit Sarkar, IBM Almaden Research Center; Prashant Shenoy, University of Massachusetts


IP-networked storage protocols such as NFS and iSCSI have become increasingly common in today's LAN environments. In this paper, we experimentally compare NFS and iSCSI performance for environments with no data sharing across machines. Our micro- and macro-benchmarking results on the Linux platform show that iSCSI and NFS are comparable for data-intensive workloads, while the former outperforms latter by a factor of two or more for meta-data intensive workloads. We identify aggressive meta-data caching and aggregation of meta-data updates in iSCSI to be the primary reasons for this performance difference and propose enhancements to NFS to overcome these limitations.
  • View the full text of this paper in HTML and PDF.
    Click here if you have forgotten your password Until March 2005, you will need your USENIX membership identification in order to access the full papers. The Proceedings are published as a collective work, © 2004 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: 17 March 2004 aw
Technical Program
FAST '04 Home