[OpenStack] [Cinder] filesystems mounted by NFS hangs after switching LIF on NetApp

Solution Verified - Updated -


  • After the LIF switching on the NetApp, all calls to files are suspended, and the virtual machines that have volumes on this filesystem also hangs

  • If the volume is exported from NetApp by the NFS protocol version 4.1, the problem always occurs after the LIF switching

  • Problem occurs when pNFS is enabled and LIF switching is done

  • Getting NFS4ERR_LAYOUTUNAVAILABLE error in tcpdump


  • Red Hat OpenStack Platform
  • Red Hat Enterprise Linux 7
  • NFS 4.1
  • pNFS
  • NetApp

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