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I S P  G L O S S A R Y
Your source for the most up-to-date terms, definitions, and acronyms for and about internet service providers.

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pNFS
Last modified: Monday, October 20, 2008 

Short for parallel Network File System, pNFS is a protocol extension of NFS 4.1, the first major performance upgrade to the widely deployed NFS in more than a decade. pNFS provides parallel I/O to file systems accessible over NFS to eliminate performance bottlenecks. With pNFS clients can directly access storage devices in parallel.

metadata processing. pNFS moves the metadata server out of the data transfer path, boosting performance by allowing multiple disk drives to serve up data in parallel. pNFS let's storage administrators do things, such as stripe a single file across multiple NFS servers (essentially the same as RAID0), which boosts performance by allowing multiple disk drives to serve up data in parallel. pNFS takes this concept and extends it to multiple storage devices connected to the NFS client over a network.

See also "NFS Enters a Parallel Universe" on EnterpriseStorageForum.com

  Related Links

A Simple pNFS Server (PDF)
Create visibility for pNFSb .demos, provide something to give people hands-on experience with pNFS

Network Storage Forum
Business Continuity, Hardware, Industry News, IP Storage, Management, Outsourcing and more for Enterprise Storage.

NFS Enters a Parallel Universe
pNFS, then, represents the first major performance upgrade to NFS in more than a decade. It achieves this through the standardization of parallel I/O and by allowing clients to access storage devices directly and in parallel.

NFS Version 4 Minor Version 1
This document describes the NFSv4.1 protocol.

Parallel NFS: breaking the NFS performance bottleneck
This site contains information about pNFS b . the emerging standard for parallel I/O and the next major extension to the ubiquitous standard, NFS.

pNFS.com
A resource for information regarding Parallel NFS and its standardization as a revision to NFS v4 through the IETF.

Related Categories

File Management

Networks

Related Terms

bottleneck

data

file management system

I/O

metadata

NFS

parallel

parallel processing

protocol

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