Hitachi Vantara HCE-3700 Exam - Topic 1 Question 11 Discussion

Actual exam question for Hitachi Vantara's HCE-3700 exam

Question #: 11
Topic #: 1

A customer has a VSP G800 storage system with an HDT pool with internal SAS drives and a virtualized thirdparty array using SATA RAID 6. The virtualized array is connected to the VSP G800 using four 8 Gbps FC paths. The customer reports performance problems on an OLTP application deployed on a virtualized server using the HDT pool.

What are two reasons for this problem? (Choose two.)

AThe workload includes significant random writes to SATA over RAID 6.

BThe tier relocation is not assisting the OLTP application.

CThe size of Tier 1 is not sufficient to accumulate all of the hot pages.

DThe speed of the FC links is insufficient.

Show Suggested Answer

Suggested Answer: A, D

by Christiane at May 09, 2022, 01:12 AM

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Leana

4 months ago

C seems likely, if Tier 1 is too small, it can't keep up with demand.

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Miesha

4 months ago

Agree with A, RAID 6 isn't great for random writes.

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Florencia

4 months ago

Surprised to see D mentioned, 8 Gbps should be enough, right?

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Viki

4 months ago

I think B is a big factor too, tier relocation might not be working right.

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Hana

5 months ago

Definitely A and C, random writes on SATA can slow things down.

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Tyra

5 months ago

I feel like the size of Tier 1 could be an issue too. If it can't hold all the hot pages, that might slow things down.

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Fannie

5 months ago

I'm not entirely sure, but I think tier relocation might not be effective for OLTP workloads. We had a similar case in practice, right?

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Aide

5 months ago

I remember we discussed how random writes can really impact performance, especially with SATA RAID 6. That could definitely be a factor here.

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Wade

5 months ago

I wonder if the FC link speed is really the problem. I thought 8 Gbps should be enough, but maybe it’s not handling the load well?

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Alysa

5 months ago

I'm a bit confused on this one. Should we just ask Salesforce to monitor the instance and notify us when there's a performance issue? That seems like the easiest option, but I'm not sure if it's the best long-term solution. Maybe I should review the other options more closely.

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Kallie

5 months ago

Okay, I've got this. The Scrum Guide states that the daily scrum should be time-boxed to 15 minutes. I'm feeling good about selecting the right answer.

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Darrin

5 months ago

Okay, let me think this through. Pooling is a concept related to load balancing and redundancy, so it's likely to be supported for a core network function like the AMF, SMF, or UPF. I'll go with AMF since that's the first option.

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