An Acronym for NetworkFileSystem. Sometimes also scornfully expanded as Nightmare FileSystem.
Some useful NFS diagnostic commands:
Extremely good documentation on NFS issues, will summarise them into the wiki later: http://66.102.7.104/search?q=cache:jrjpkbAxujAJ:www.netapp.com/tech_library/ftp/3183.pdf+site:netapp.com+linux+tuning&hl=en&client=firefox-a#8
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