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Hitachi Vantara HCE-3700 Exam - Topic 1 Question 15 Discussion

When testing an external LUN with default mapping on two paths, performance appears constrained and the utilization of the RAID group in the external storage system never exceeds 35% busy no matter how many test threads are generated. You want to increase the utilization of the external RAID group.Which two actions will accomplish this task? (Choose two.)
A) Increase the external path LUN queue depth setting. and C) Change Cache Mode to ''Disabled''.
B) Increase the number of LUNs mapped from the external RAID group.
D) Increase the server HBA LUN queue depth to 64.

Hitachi Vantara HCE-3700 Exam - Topic 1 Question 15 Discussion

Actual exam question for Hitachi Vantara's HCE-3700 exam
Question #: 15
Topic #: 1
[All HCE-3700 Questions]

When testing an external LUN with default mapping on two paths, performance appears constrained and the utilization of the RAID group in the external storage system never exceeds 35% busy no matter how many test threads are generated. You want to increase the utilization of the external RAID group.

Which two actions will accomplish this task? (Choose two.)

Show Suggested Answer Hide Answer
Suggested Answer: A, C

by Virgina at May 08, 2022, 10:51 AM

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Dannette
8 months ago
Definitely need to increase the LUN queue depth!
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Rebecka
9 months ago
Wait, why would you disable cache mode? That seems counterintuitive.
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Omega
9 months ago
Increasing the HBA queue depth sounds risky...
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Kami
9 months ago
I think C could actually help too.
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Artie
9 months ago
A and B are the way to go!
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Talia
9 months ago
I practiced a similar question where changing cache modes affected performance, but I can't recall if disabling it is beneficial in this scenario.
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Lamar
9 months ago
I think increasing the number of LUNs mapped could help, but I’m not entirely sure how that interacts with the RAID group utilization.
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Barrett
9 months ago
I remember something about increasing the queue depth can help with performance, but I'm not sure if it's the external path or the server HBA that needs adjusting.
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Kris
9 months ago
I feel like increasing the server HBA LUN queue depth to 64 is a good option, but I also have a nagging doubt about whether it’s the right choice here.
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Yuonne
9 months ago
Okay, let me walk through this step-by-step. The question says the administrator needs to check the default display of the Advanced Performance pane to confirm the high ballooning activity. So the view they should choose is the one that shows memory-related metrics, which would be the Memory view.
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Curt
9 months ago
A tiered deployment server topology sounds like it could be a good solution, but I'll need to make sure I understand how that works.
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Lyda
10 months ago
Random testing feels weird. I'm pretty sure an effective training program needs comprehensive, role-specific education that helps people actually recognize red flags.
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