Lesson 6

Date: 6/14/2017
Network File System (NFS)
Linux System Administration


NFS versions

  • NFS was originally developed by Sun Microsystems:
      NFSv2 released in 1985 NFSv3 released in 1995 NFSv4 released in 2003 for Sun and NetApp. Available in Linux now.
  • Detailed info about the NFS versions for Linux is available at http://nfs.sourceforge.net (the site looks away too outdated though).
  • NFS support should be enabled in Linux Kernel:
    CONFIG_NFS_FS=m
    CONFIG_NFS_V3=y
    CONFIG_NFS_V4=y
    CONFIG_NFS_DIRECTIO=y
    CONFIG_NFSD=m
    CONFIG_NFSD_V3=y
    CONFIG_NFSD_V4=y
    CONFIG_NFSD_TCP=y
    
  • Verify NFS support at run time:
    lsmod | grep nfs
    grep nfs /proc/filesystems
    
  • Verify what NFS version is currently running:
    nfsstat
    
  • Check the NFS version currently being used by the client
    mount
    



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