Huawei SmartDedupe uses fingerprint and similarity-based techniques, including SFP, to identify data for deduplication, so it is incorrect to state that SFP is not involved. Data reduction features are not limited to LUNs, as they also apply to file systems and other data types, making that statement incorrect.

SmartQoS can limit or guarantee IOPS and bandwidth per application.

scalability
Explanation:
Huawei flash storage supports scalability, allowing online expansion by continuously adding controllers, nodes, or disks to an existing system to meet growing capacity and performance requirements.

Tenant management roles include tenant administrator, protocol administrator, and data protection administrator. Security administrator is a system-level role rather than a tenant management role.

Tenants can configure authentication domain services such as NIS, AD, and LDAP to provide user identity management and access control. DNS is used for name resolution rather than authentication or domain control, so it is not considered a domain controller in the multi-tenant feature.