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Passthrough-read upgrade and revert considerations

There are certain upgrade and revert considerations that you must know about before upgrading to an ONTAP release that supports passthrough-read or before reverting to a release that does not support passthrough-read.

Upgrading​

After all nodes are upgraded to a version of ONTAP that supports FPolicy passthrough-read, the cluster is capable of using the passthrough-read functionality; however, passthrough-read is disabled by default on existing FPolicy configurations. To use passthrough-read on existing FPolicy configurations, you must disable the FPolicy policy and modify the configuration, and then reenable the configuration.

Reverting​

Before reverting to a version of ONTAP that does not support FPolicy passthrough-read, the following conditions must be met:

  • All the policies using passthrough-read must be disabled, and then the affected configurations must be modified so that they do not use passthrough-read.
  • FPolicy functionality must be disabled on the cluster by disabling every FPolicy policy on the cluster.