High load from xfssyncd process on NFS server

Solution Unverified - Updated -


  • Very high load averages on RHEL6.4 NFS servers.
  • "xfssyncd" and "migration" processes using up a lot of CPU time.
  • No sign of significant NFS client activity and not much traffic over the network.


  • Red Hat Enterprise Linux 6
  • Dell R610
  • NFS Server - NetApp/Engenio 2600 dual controller array
  • Native DM Multipathing.

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