The H19-308_V4.0 exam covers several important enterprise storage topics. Understanding the weight of each section can help candidates focus their preparation more effectively.

1. Data Storage Basis 8%

This section introduces the fundamental concepts of storage technologies, including:

• Storage architecture
• RAID technologies
• Storage performance indicators
• Data protection concepts
• Basic storage protocols

A strong understanding of storage fundamentals is essential for mastering the rest of the exam topics.

2. SAN Storage Basis 17%

SAN (Storage Area Network) is one of the core topics in the exam.

Candidates should study:

• Fibre Channel basics
• iSCSI technologies
• SAN networking architecture
• Storage connectivity
• SAN advantages and use cases

Because this section carries a high percentage, it deserves extra attention during preparation.

3. NAS Storage Basis 12%

NAS (Network Attached Storage) technologies are widely used in enterprise environments.

Important topics include:

• File sharing protocols
• NFS and SMB/CIFS
• NAS deployment scenarios
• NAS performance and scalability

Understanding the differences between SAN and NAS is very important for the exam.

4. Object Storage Basis 10%

Object storage is increasingly important in cloud and big data environments.

Candidates should understand:

• Object storage architecture
• Metadata concepts
• Scalability features
• Cloud storage scenarios
• Advantages of object storage

5. Backup and Disaster Recovery 10%

This section focuses on data protection and business continuity.

Topics include:

• Backup methods
• Disaster recovery concepts
• Replication technologies
• Recovery Point Objective (RPO)
• Recovery Time Objective (RTO)

Candidates should understand how organizations protect critical business data.

6. OceanStor Dorado 15%

OceanStor Dorado is one of Huawei’s flagship all-flash storage products.

Candidates should learn:

• Product architecture
• Key features
• Application scenarios
• Performance advantages
• Intelligent storage technologies

This is another heavily weighted section in the exam.

7. OceanStor New Hybrid Flash Storage 8%

This section covers Huawei hybrid flash storage solutions.

Study topics include:

• Hybrid storage architecture
• Tiered storage
• Performance optimization
• Product positioning

8. OceanStor Pacific 10%

OceanStor Pacific focuses on scale-out storage technologies.

Candidates should understand:

• Distributed storage architecture
• Big data scenarios
• AI and HPC storage applications
• Scalability and reliability features

9. OceanProtect Backup Storage 10%

OceanProtect is Huawei’s backup storage solution.

Key areas include:

• Backup storage architecture
• Data protection features
• Disaster recovery integration
• Application scenarios