Huawei OceanStor SmartTier is an intelligent data storage tiering feature designed to operate as a non-disruptive, background process. Its core functions of data access statistics collection, activity analysis, and data relocation are performed transparently to host applications. The entire process is engineered to ensure that ongoing services are not interrupted and that data remains fully available to users and applications during migration. While there may be a minimal performance impact on the storage system's resources, it does not affect service continuity or data availability, which is a primary design principle of the technology.

A: This is incorrect. A fundamental function of SmartTier is to monitor I/O and collect statistics to calculate the activity level ("hotness" or "coldness") of data blocks.

B: This is incorrect. This statement accurately describes the primary purpose of SmartTier: moving frequently accessed (hot) data to high-performance tiers and less-frequently accessed (cold) data to high-capacity, lower-cost tiers.

C: This is incorrect. SmartTier's operations, such as the timing of data analysis and migration, are governed by user-configurable policies that define when and how data should be relocated.

1. Huawei OceanStor V3 Series V300R006 SmartTier Feature Guide for Block 02

Section: "Introduction to SmartTier". The document states

"SmartTier is a value-added feature that can automatically analyze data access frequency per unit time and migrate data between different storage media based on the analysis result. This feature helps achieve the optimal balance between storage performance and costs without interrupting services." This directly refutes option D.

2. Huawei OceanStor 5300 V3&5500 V3&5600 V3&5800 V3&6800 V3 Storage System V300R003 Product Documentation

Section: "Software Features > SmartTier (Intelligent Data Tiering)". This guide explains

"SmartTier monitors data access frequency in real time and migrates data between different storage tiers without interrupting services." This confirms that options A

B

and C are true descriptions of the technology

while D is false.

3. Huawei OceanStor Dorado V3 Series V300R001 SmartTier Feature Guide for File

Section 1.2: "Benefits". The document highlights the benefits

including: "Intelligent and efficient: Data is automatically migrated without interrupting services." This further supports that the process is non-disruptive.