Dell EMC D-XTR-DS-A-24 Exam - Topic 1 Question 8 Discussion

Actual exam question for Dell EMC's D-XTR-DS-A-24 exam

Question #: 8
Topic #: 1

[All D-XTR-DS-A-24 Questions]

When troubleshooting SAN performance problems what would be a key indicator of a physical issue?

AHigh CRC error count

BHigh Buffer to Buffer Credits

CLow Buffer to Buffer Credits

DHigh Class 3 Discards

Show Suggested Answer

Suggested Answer: A

When troubleshooting SAN performance problems, a key indicator of a physical issue is a high CRC (Cyclic Redundancy Check) error count. CRC errors are indicative of corrupt data packets during transmission, which often points to issues such as faulty cables, bad ports, or other physical problems in the network infrastructure. High CRC error counts can lead to retransmissions, reduced throughput, and overall degradation of SAN performance. Addressing the physical components associated with high CRC error counts is essential for restoring optimal SAN operations.

While the specific Dell XtremIO Design document was not available, general SAN troubleshooting guidelines and best practices indicate that CRC errors are a critical metric to monitor for physical connectivity issues1.

Additional resources on SAN performance troubleshooting can be found in the support documentation for the XtremIO Family on Dell's official website2.

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by Allene at Sep 12, 2024, 09:37 AM

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Lashandra

4 months ago

High buffer to buffer credits? Sounds counterintuitive to me!

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Noel

4 months ago

Totally agree, CRC errors are a classic sign of trouble.

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Polly

4 months ago

Wait, are we sure high class 3 discards mean a physical problem?

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Sabina

4 months ago

I think low buffer to buffer credits can also indicate issues.

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Flo

4 months ago

High CRC error count is definitely a red flag.

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Mollie

5 months ago

I’m leaning towards high CRC error count as a key indicator, but I vaguely remember something about buffer credits being important as well.

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Keith

5 months ago

High class 3 discards seem like they could point to a physical issue too, but I feel like I need to double-check that against what we studied.

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Rolland

5 months ago

I remember practicing a question about buffer credits, and I think low buffer to buffer credits might also suggest a problem, but I can't recall the specifics.

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Tanja

5 months ago

I think high CRC error count could indicate a physical issue, but I'm not entirely sure if it's the most critical factor.

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Teri

5 months ago

Ugh, I'm drawing a blank here. Physical issues in the SAN - what could that be? I'll have to guess and hope for the best, but I'm not feeling too great about this one.

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Tegan

5 months ago

High CRC error count - that's the one! I remember learning that CRC errors are a telltale sign of physical layer problems in the SAN. Confident I can nail this question.

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Bambi

5 months ago

This seems like a pretty straightforward question about troubleshooting SAN performance issues. I think I've got a good handle on the key indicators, so I'll carefully review the options and select the best one.

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Tuyet

5 months ago

Hmm, I'm a bit unsure about this one. I know we covered SAN troubleshooting in class, but I can't quite remember the specific indicators of physical issues. Let me think this through carefully.

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Dulce

6 months ago

Wait, I'm confused. Isn't it supposed to be checking the permissions on the specific accountRec variable, not the entire Account object? I'm not sure which option is the right one here.

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