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What is the impact of modifying the nfs server option '-tcp-max-xfer-size'?

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Category:
ontap-9
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nas
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Applies to

ONTAP 9

Answer

  • There is no impact to new mount(s), will receive the max operation size of 'tcp-max-xfer-size'
  • Existing mounts are not impacted until the client requests for this information again (normally only done on mount)

Additional Information

WARNING

  • Due to the behavior of various operating systems, NetApp does not suggest to decrease the maximum allowable transfer size on ONTAP below the value of rsize/wsize of currently mounted NFS file systems
    • This can create hangs or even data corruption with some operating systems

 

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