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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?

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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
6 months ago
High buffer to buffer credits? Sounds counterintuitive to me!
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Noel
6 months ago
Totally agree, CRC errors are a classic sign of trouble.
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Polly
6 months ago
Wait, are we sure high class 3 discards mean a physical problem?
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Sabina
7 months ago
I think low buffer to buffer credits can also indicate issues.
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Flo
7 months ago
High CRC error count is definitely a red flag.
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Mollie
7 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
7 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
7 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
8 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
8 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
8 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
8 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
8 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
8 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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Karl
2 years ago
High Class 3 Discards? Sounds like the SAN is trying to play hard to get.
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Lemuel
2 years ago
Low Buffer to Buffer Credits? Looks like someone's been on a strict SAN diet.
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Reita
2 years ago
Buffer to Buffer Credits, huh? Sounds like a game of credit card roulette to me.
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Jacki
2 years ago
D) High Class 3 Discards
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Alecia
2 years ago
C) Low Buffer to Buffer Credits
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Germaine
2 years ago
C) Low Buffer to Buffer Credits
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Shanice
2 years ago
B) High Buffer to Buffer Credits
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Tegan
2 years ago
B) High Buffer to Buffer Credits
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Laine
2 years ago
A) High CRC error count
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Mona
2 years ago
A) High CRC error count
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Nelida
2 years ago
I think both high CRC error count and high Class 3 Discards could point to a physical issue.
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Candida
2 years ago
I believe high Class 3 Discards could also be a key indicator of a physical issue.
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Kate
2 years ago
High CRC error count? Looks like someone's been playing a little too rough with their fiber optics.
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Inocencia
2 years ago
C) Low Buffer to Buffer Credits
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Marta
2 years ago
B) High Buffer to Buffer Credits
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Mary
2 years ago
A) High CRC error count
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Weldon
2 years ago
I agree with Arlette, high CRC error count could indicate a physical issue.
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Arlette
2 years ago
I think the key indicator of a physical issue would be high CRC error count.
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