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VMware NFSv4.1 datastores became inaccessible during ONTAP upgrade

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ontap-9
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nas
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Applies to

  • ONTAP 9
  • NFSv4.1 Parallel NFS

Issue

  • During ONTAP upgrade ESXi log vmkernel.log reports Mismatch between cluster roles resulting in ESXi NFSv4.1 Datastore connection issue

example

2023-06-21T14:27:47.309Z cpu4:2099419)NFS41: NFS41ProcessExidResult:2319: clientid 930000000000001 roles 0x10000
2023-06-21T14:27:47.309Z cpu4:2099419)NFS41: NFS41_ClusterScopeMatch:3784: Mismatch between cluster roles, expected 393216, got 65536
2023-06-21T14:27:47.309Z cpu4:2099419)WARNING: NFS41: NFS41ProcessExidResult:2489: Cluster Mismatch due to different server scope. Probable server bug. Remount data store to access

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