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Huawei H19-308_V4.0 Exam Syllabus Topics:

TopicDetails
Topic 1
  • NAS Storage Basis: Network-Attached Storage delivers file-level storage over standard networks, accessible to multiple users simultaneously. NAS systems offer cost-effective solutions for file sharing, collaboration, and centralized data management.
Topic 2
  • OceanProtect Backup Storage: OceanProtect offers comprehensive data protection with efficient backup, recovery, and retention features. This solution ensures security through encryption and deduplication while reducing storage costs.
Topic 3
  • Data Storage Basis: Data storage is the foundation of IT infrastructure, enabling efficient storage, management, and retrieval of digital information. Understanding storage fundamentals is essential for selecting solutions that meet business performance, capacity, and reliability requirements.
Topic 4
  • OceanStor Pacific: OceanStor Pacific is Huawei's distributed storage for massive-scale data management and cloud-native applications. It provides scalability, resilience, and performance for big data, AI workloads, and large-scale storage.
Topic 5
  • OceanStor New Hybrid Flash Storage: OceanStor Hybrid Flash combines flash and disk storage to balance performance and cost-effectiveness. This architecture optimizes resources by placing performance-sensitive data on flash and capacity-oriented data on disk.
Topic 6
  • SAN Storage Basis: Storage Area Networks provide high-speed, block-level storage over dedicated networks for enterprise applications requiring low latency. SAN enables multiple servers to share storage resources while supporting advanced features like snapshots and replication.
Topic 7
  • Object Storage Basis: Object storage manages data as discrete units with metadata and unique identifiers for efficient retrieval. This scalable architecture suits unstructured data, cloud applications, and big data analytics requiring massive capacity.
Topic 8
  • Backup and Disaster Recovery: Backup and disaster recovery strategies protect organizations from data loss through redundant copies of critical information. Comprehensive backup solutions ensure business continuity and enable rapid recovery to minimize downtime.

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Huawei HCSA-Presales-Storage V4.0 Sample Questions (Q79-Q84):

NEW QUESTION # 79
What are the highlights of OceanStor Dorado? (Choose all that apply.)

Answer: A,B,C,D

Explanation:
OceanStor Dorado's highlights include its strong fault tolerance for SAN and NAS HyperMetro, industry-leading performance and low latency, coverage of all storage scenarios with top industry ranking, and intelligent operations and maintenance (O&M) with cloud-based intelligent collaboration.


NEW QUESTION # 80
What will RAID 6 (7+2) change into after dynamic reconstruction of OceanStor Dorado if one SSD failed in a
9-SSD storage pool?

Answer: D

Explanation:
Huawei OceanStor Dorado utilizes RAID 2.0+ block virtualization technology, which supports Dynamic RAID Reconstruction. In a traditional RAID environment, if a disk fails, the RAID group continues to operate in a " degraded " mode until the disk is replaced. However, in Dorado ' s RAID 2.0+, the system uses a distributed spare space policy where spare capacity is spread across all disks in the pool.
When one SSD fails in a storage pool originally configured with RAID 6 (7 data chunks + 2 parity chunks), the system identifies that it no longer has enough physical disks to maintain a 7+2 stripe width. To maintain the same level of protection (dual parity) while utilizing the remaining 8 disks, the system dynamically adjusts the RAID policy for new writes and reconstructed data to RAID 6 (6+2) . This ensures that the data remains protected by two parity chunks even with a reduced disk count. This " shrinkage " of the stripe width allows the system to remain in a " healthy " protected state rather than staying in " degraded " mode indefinitely.


NEW QUESTION # 81
The Dorado V3 supports the HyperMetro solution.

Answer: B


NEW QUESTION # 82
A customer wants to purchase an object storage system to be used by different departments. These departments are independent of each other and cannot access each other's dat a. Therefore, the data capacity of different departments needs to be limited. Which of the following object storage features will you recommend to the customer? (Select all that apply)

Answer: A,C

Explanation:
To meet the customer's requirement for departmental isolation and resource control, Huawei recommends the combination of Multi-tenancy (Option C) and Quotas (Option D).12 Multi-tenancy is the foundational feature for iso3lation in Huawei object storage. It allows the physical storage system to be logically partitioned into multip4le "Tenants". Each department can be assigned its own tenant environment with its own set of users, access keys, and buckets. Data is logically isolated, meaning one department cannot see or access the data of another unless explicitly permitted.
Quota management is then used to limit the capacity consumed by each department. In Huawei OceanStor Pacific, quotas can be applied at the Tenant level or the Bucket level. By setting a Tenant Quota, the administrator ensures that a specific department does not exceed its allocated budget of storage space, preventing one department from exhausting the resources of the entire system. While Replication (Option A) and WORM (Option B) are valuable for data protection, they do not address the specific needs of departmental isolation and capacity limiting.


NEW QUESTION # 83
Which are advantages of SAN storage?

Answer: A,B,C,D

Explanation:
SAN storage provides several major advantages over direct-attached storage. High resource utilization is achieved because multiple servers can share centralized storage resources instead of leaving capacity stranded on individual servers. High scalability is another advantage because capacity and performance can be expanded by adding disks, controllers, paths, or storage arrays without redesigning each host individually. High reliability comes from enterprise storage features such as redundant controllers, multipathing, RAID protection, hot-swappable components, and mature failover mechanisms. SAN also provides high performance because it delivers block-level access through dedicated storage networks such as Fibre Channel, iSCSI, or InfiniBand. This makes SAN especially suitable for databases, virtualization platforms, and mission-critical enterprise applications. Therefore, all four listed options are valid advantages of SAN storage.


NEW QUESTION # 84
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