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What are recommended VMware parameter settings for SunRPC.MaxConnPerIP and MaxQueueDepth when using NetApp storage

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ontap-9
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nas
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Applies to

  • ONTAP 9
  • VMware vSphere environments using NFS datastores

Answer

  • NetApp has developed a set of optimal ESXi host settings for NFS protocol
  • The official recommended settings for these two VMware NFS parameters are:
  • SunRPC.MaxConnPerIP: vSphere 7.0 to 8.0, set to 128. This setting is ignored in ESXi releases after 8.0
  • MaxQueueDepth: vSphere 6.0 or later, set to 128

Note: NFS advanced configuration option MaxQueueDepth may not work as intended when using VMware vSphere ESXi 7.0.1 and VMware vSphere ESXi 7.0.2. Reference VMware KB 86331 for more information.

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