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| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCSA-Presales-Storage V4.0 |
| Exam Number: | H19-308_V4.0 |
| Real Exam Qty: | 60 |
| Available Languages: | English |
| Related Certifications: | HCSA-Presales-Storage |
| Passing Score: | 600/1000 |
| Exam Format: | True/False, Single-choice, Multiple-choice |
| Certificate Validity Period: | N/A |
| Exam Duration: | 90 minutes |
| Exam Price: | 100 USD |
| Sample Questions: | Huawei H19-308_V4.0 Sample Questions |
| Exam Way: | Written examination |
| Pre Condition: | None specified |
| Official Syllabus URL: | https://e.huawei.com/en/talent/cert/#/cert/overview?certCode=HCSA-Presales-Storage |
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NEW QUESTION # 48
Thin provisioning allocates storage space on demand, improving resource utilization.
Answer: A
Explanation:
Huawei's SmartThin technology is a thin provisioning feature that allows storage administrators to allocate more logical capacity to servers than is physically available in the storage pool. Traditionally, " thick provisioning " reserves the entire capacity of a LUN the moment it is created, leading to significant " stranded
" or wasted space if the application does not immediately use it.
With SmartThin, the storage system only consumes physical blocks when data is actually written to the disk.
This " on-demand " allocation ensures that physical resources are shared across multiple LUNs more efficiently. For example, a 10 TB LUN might be presented to a database, but if the database only contains 2 TB of data, only 2 TB of physical space is consumed. This significantly improves the Storage Resource Utilization Rate and reduces the Total Cost of Ownership (TCO) by delaying the need to purchase additional physical disks until the actual consumed capacity approaches the physical limits of the array.
NEW QUESTION # 49
It is estimated that in 2025, 80% of the global volume of new data will be unstructured data.
Answer: A
Explanation:
This statement aligns with the market analysis provided in Huawei's OceanStor Pacific pre-sales documentation regarding the "Yottabyte Era". Huawei highlights that the nature of data is shifting away from structured databases toward massive volumes of unstructured data, such as high-definition video, medical images, IoT sensor logs, and AI training datasets.
By 2025, it is projected that 80% of new data generated will be unstructured. This trend is the primary driver behind the development of the OceanStor Pacific series, which is a scale-out distributed storage system specifically designed to handle the capacity and performance requirements of unstructured data at scale. Traditional centralized arrays (SAN/NAS) are often ill-equipped to handle the sheer volume and file counts associated with this growth, necessitating the move toward distributed architectures that can scale horizontally to hundreds of petabytes.
NEW QUESTION # 50
Which of the following is NOT a capability of Huawei OceanStor Pacific scale-out storage that ensures always-on services?
Answer: C
Explanation:
Huawei OceanStor Pacific is a distributed scale-out storage system optimized for mass unstructured data (File, Object, HDFS). While it provides robust " always-on " service capabilities, Option A is incorrect as it refers to a specific feature of centralized unified storage arrays like the OceanStor Dorado series. OceanStor Dorado is marketed as providing the industry ' s only " Active-active solution for SAN and NAS " within a centralized architecture.
In contrast, OceanStor Pacific ensures service continuity through distributed mechanisms:
* Fast Failover (Option B): Technologies such as multi-module concurrent service takeover enable services on a faulty node to be taken over within 10 seconds, minimizing RTO.
* HyperGeoMetro (Option C): This feature provides multi-replica cross-site active-active protection for object storage, allowing data to be accessed and modified at multiple sites simultaneously.
* HyperGeoEC (Option D): This is a cross-site Erasure Coding (EC) multi-active solution that provides high reliability and space utilization for large-scale deployments.
Because OceanStor Pacific is designed for distributed unstructured workloads rather than integrated SAN
/NAS block-and-file convergence in the traditional sense, Option A is the outlier.
NEW QUESTION # 51
Which types of disk storage pools are supported by the new-gen OceanStor hybrid flash storage?
(Choose all that apply.)
Answer: A,B,C
Explanation:
The new-generation OceanStor hybrid flash storage supports mixed SSD+NL-SAS disk pools, all- SSD pools, and all-HDD pools, enabling flexible performance-to-capacity configurations.
NEW QUESTION # 52
Which of the following are the all-flash models that support SmartMatrix 2.0 and tolerate failures of up to 3 controllers in a 4-controller layout without disrupting services? (Multiple Choice)
Answer: B,C,D
NEW QUESTION # 53
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