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

Actual exam question for Dell EMC's Dell XtremIO Design Achievement exam
Question #: 8
Topic #: 1
[All Dell XtremIO Design Achievement 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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Karl
7 days ago
High Class 3 Discards? Sounds like the SAN is trying to play hard to get.
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Lemuel
8 days ago
Low Buffer to Buffer Credits? Looks like someone's been on a strict SAN diet.
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Reita
13 days ago
Buffer to Buffer Credits, huh? Sounds like a game of credit card roulette to me.
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Mona
4 days ago
A) High CRC error count
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Nelida
14 days ago
I think both high CRC error count and high Class 3 Discards could point to a physical issue.
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Candida
15 days ago
I believe high Class 3 Discards could also be a key indicator of a physical issue.
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Kate
21 days ago
High CRC error count? Looks like someone's been playing a little too rough with their fiber optics.
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Marta
2 days ago
B) High Buffer to Buffer Credits
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Mary
8 days ago
A) High CRC error count
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Weldon
28 days ago
I agree with Arlette, high CRC error count could indicate a physical issue.
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Arlette
1 months ago
I think the key indicator of a physical issue would be high CRC error count.
upvoted 0 times
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