H13-629_V3.0 · Question #88
The disk domain of Huawei's marine storage hybrid flash system contains 96 disks. In order to give full play to the disk performance, it is recommended that the number of LUNs planned in the disk…
The correct answer is B. False. B is correct because with 96 disks in the disk domain, the recommended minimum number of LUNs is not less than 96 (matching the disk count), not merely 4. Huawei's best practice ties the LUN count to the number of physical disks so that I/O can be distributed in parallel across…
Question
The disk domain of Huawei's marine storage hybrid flash system contains 96 disks. In order to give full play to the disk performance, it is recommended that the number of LUNs planned in the disk domain should not be less than 4.
Options
- ATrue
- BFalse
How the community answered
(49 responses)- A27% (13)
- B73% (36)
Explanation
B is correct because with 96 disks in the disk domain, the recommended minimum number of LUNs is not less than 96 (matching the disk count), not merely 4. Huawei's best practice ties the LUN count to the number of physical disks so that I/O can be distributed in parallel across all drives, fully utilizing their combined throughput.
Option A is wrong because accepting "not less than 4" as sufficient would leave the vast majority of disks under-utilized - four LUNs cannot spread workload evenly across 96 spindles/flash devices.
Memory tip: Use the 1:1 rule - LUNs ≥ Disks. If you see a disk domain with N disks, the safe minimum LUN count is N, not some small fixed number like 4. When a question gives you a suspiciously low threshold (4 vs. 96 disks), that mismatch is a strong signal the statement is false.
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