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OpenShift/Trident: Unable to Create RWX PVCs with ONTAP-SAN Backend

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Applies to

  • Trident
  • Openshift
  • Fibre Channel (FC/FCP) or iSCSI storage protocol (ONTAP-SAN)
  • StorageClass with volumeMode: Block and accessModes: ReadWriteMany (RWX)

Issue

Attempts to create ReadWriteMany (RWX) Persistent Volume Claims (PVCs) with volumeMode: Block in OpenShift using Trident with an ONTAP-SAN backend result in the PVCs remaining in a Pending state.

Log Output Example:

rpc error: code = Unknown desc = no available backends for storage class netapp-fcp-block...trident-main{"message":"no backend pools support the requisite protocol"}trident-main{"message":"no backend pools support any requisite topologies"}trident-main{"message":"no backend pools found for given NAS type"}
  • The StorageClass parameters may look like:
    backendType: ontap-sanstoragePools: svm0_OpenShiftname:.*

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