Poor CIFS performance between linux box and NetApp NAS

Solution Unverified - Updated -

Issue

  • Slow transfer speeds between linux box and NetApp NAS.
  • The network team says the network looks good.
  • Packet trace showed several things are happening, but the most worrisome looks like these STATUS_INTERNAL_ERROR messages from the NetApp.
  • Both client and server seem to have no trouble talking with other users or servers at other sites, though NetApp NAS has had some complaints from end users.

Environment

Red Hat Enterprise Linux 5.9
NetApp NAS

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