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VMs lost access to NFS Datastore during ONTAP upgrade

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Category:
ontap-9
Specialty:
nas
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Applies to

  • ONTAP9
  • NFS4.1
  • VMware

Issue

  • During ONTAP upgrade, VMs lost connectivity to the datastores
  • From ONTAP, no error observed during the upgrade
  • ESXi detects AllPathDown(APD) :
APD start for 0x4319ce029700 [6d84eca6-1900b38f-0000-000000000000]
APD start event for 0x4319ce029700 [6d84eca6-1900b38f-0000-000000000000]
Device or filesystem with identifier [6d84eca6-1900b38f-0000-000000000000] has entered the All Paths Down state.
 
  • vmkernel logs warnings:
WARNING: NFS41: NFS41FileOpCloseFile:3718: NFS41FileCloseFile failed: Lost previously held disk lock
 

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