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Dell EMC Exam D-XTR-DS-A-24 Topic 5 Question 17 Discussion

Actual exam question for Dell EMC's D-XTR-DS-A-24 exam
Question #: 17
Topic #: 5
[All D-XTR-DS-A-24 Questions]

A customer's environment is configured as follows:

. Dual X-Brick cluster

. 8 ESXi hosts with 2 Emulex HBAs

. Each ESXi hosts has 8 LUNs

. Each LUN is visible through 4 paths

What should be the LUN queue depth setting per path?

Show Suggested Answer Hide Answer
Suggested Answer: C

XtremIO XVC (XtremIO Virtual Copies) allows for efficient snapshot management and operations, including the refresh of volumes. One of the key features of XVC is that it enables the refresh of a production volume from a snapshot without requiring the volume to be unmounted from the host. This capability is designed to minimize disruption and maintain continuous availability of data to applications during refresh operations. The refresh operation is handled within the XtremIO storage array, and the production volume remains accessible to the host during this process1.


The Dell XtremIO Design Achievement document provides information on the capabilities and features of XtremIO X2 systems, including XVC operations1.

Additional details on XVC refresh operations can be found in the support documentation for the XtremIO Family on Dell's official website2.

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by Elouise at Jan 11, 2025, 03:36 AM

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Gene
18 days ago
I'm going to go with B) 64. It's the classic queue depth setting - just like the number of beers I'll have after acing this exam!
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Lovetta
20 days ago
A) 128 sounds like a good compromise between performance and resource utilization. I'm pretty sure that's the right answer, though I did once try setting the queue depth to 'over 9000' just for fun.
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Loreen
24 days ago
Hmm, I'm torn between B) 64 and C) 256. I'd need to know more about the specific workload and performance requirements to make a confident choice. Maybe I'll just flip a coin!
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Leonard
1 months ago
D) 1024 seems too high for this environment. That kind of queue depth is more suitable for large-scale storage systems with extensive I/O requirements. I'd go with the more conservative B) 64 setting.
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Jame
3 days ago
A: I agree, 1024 seems excessive for this setup.
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Nidia
1 months ago
I think the correct answer is B) 64. The default queue depth setting is usually 64, and with a dual X-Brick cluster and 4 paths per LUN, this should provide adequate performance without overloading the storage system.
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Domingo
8 days ago
So the correct answer is B) 64.
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Davida
19 days ago
With 4 paths per LUN, that should provide adequate performance.
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Rashida
1 months ago
I agree, the default queue depth setting is usually 64.
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Kristofer
2 months ago
I agree with Wenona, 256 seems like the right choice considering the configuration.
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Wenona
2 months ago
I disagree, I believe it should be 256 to handle the high number of paths and LUNs.
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Lettie
2 months ago
I think the LUN queue depth setting per path should be 128.
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