Storage Pool Disk Type Requirements in Multi-Tier Domains
Short answer
B Storage pools do not need to contain multiple disk types if the disk domain has them; pools can be configured with a single disk type from the domain.
Question
Key Takeaways
The trap is assuming physical diversity in the domain forces logical diversity in the pool; the key insight is that tiering allows selective mapping.
This question tests understanding of Huawei storage pool configuration. The correct answer is False (B), as pools can be homogenous despite multi-disk domains.
Common mistake: Candidates often select True, assuming that heterogeneity in the hardware layer automatically translates to heterogeneity in the software-defined storage pool configuration.
Expert Analysis
The statement is false because modern enterprise storage systems, such as Huawei OceanStor, utilize tiered storage architectures where a single disk domain can contain multiple disk types (e.g., SSDs and HDDs) but map to specific storage pools based on performance requirements.
In a typical configuration, an administrator creates separate storage pools for different tiers. For instance, a high-performance pool might be created using only the SSD tier within that disk domain, while a capacity-oriented pool uses only the HDD tier. This allows the system to optimize cost and performance by placing data on the most appropriate media without forcing every pool to include every available disk type in the domain.
The comment provided suggests that "when creating a pool one can choose the tiers" and that it "may not include all tiers," which correctly identifies the flexibility of pool creation. The user who voted B is correct because the requirement for a pool to have "multiple" disk types if the domain has them is incorrect; a pool can be homogeneous even if the underlying domain is heterogeneous. Therefore, the presence of multiple disk types in a domain does not mandate that storage pools must also contain multiple disk types.
Exam Strategy
When analyzing storage architecture questions, distinguish between physical components (disks, controllers) and logical constructs (pools, volumes). Always check if the vendor's documentation supports independent configuration of logical resources regardless of physical inventory. Look for keywords like 'MUST' or 'REQUIRED' which are often traps in flexible cloud-native or intelligent storage environments.
Frequently Asked Questions
Can a storage pool consist of only one disk type?
What is the benefit of separating disk types into different pools?
Community Votes
100% of anonymous learners picked answer B. Votes are pick records left by other test-takers — they are not the verified answer.
Discussion 1 contributions
Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.
From public community threads 1
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10c5cfe 👍 2 Answered BWhen creating a pool one can choose the tiers. may not invlude all tiers.
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