Whether the SmartTier feature of the OceanStor V3 Series supports cross-engine data migration

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The SmartTier feature does not support cross-engine data migration.

Other related questions:
Whether the HyperClone feature of the OceanStor V3 Series supports cross-engine or cross–storage system clone
The HyperClone feature does not support cross-engine clone of LUNs. The primary and secondary LUNs used for cloning must reside on the same engine.

Migration modes supported by SmartTier
See section "Configuring a SmartTier Policy" in SmartTier Feature Guide, which is available at http://support.huawei.com/ehedex/hdx.do?docid=DOC1000084404&id=stier_config_tier_policy_v3r3c00l.

Whether the WORM feature of the OceanStor V3 Series supports the file level
Only file system–level WORM is supported. Directory- or file-level WORM is not supported. You can manually enable a file system to enter the protection state. Alternatively, you can set the state of a file system to automatic protection. Determine whether the WORM feature is used when you create a file system.

SmartTier and other features supported by heterogeneous LUNs
Heterogeneous LUNs support HyperSnap, HyperReplication, SmartMigration, HyperMirror, SmartQoS, SmartMulti-tenant and SmartPartition. However, Heterogeneous LUNs do not support the SmartTier feature.

Whether the SmartCache feature of the OceanStor V3 Series supports online expansion
The SmartCache feature supports online expansion.

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