Which feature is NOT supported by clustered Data ONTAP 8.2?

Synchronous SnapMirror was not supported in clustered Data ONTAP 8.2. This feature, which replicates data to a secondary system with zero RPO, was available in 7-Mode ONTAP but was not introduced into clustered ONTAP until later releases. The absence of this feature is a known limitation of the 8.2 Cluster-Mode architecture.

Data Protection (DP) Mirrors are fully supported in clustered Data ONTAP 8.2 as a SnapMirror replication relationship type for disaster recovery.

Load Sharing Mirrors are supported in clustered Data ONTAP 8.2 and are used specifically to offload read traffic for namespace root volumes.

Non-disruptive upgrades are a core architectural capability of clustered Data ONTAP 8.2, enabled by the cluster failover and rolling upgrade mechanisms.