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Dell EMC Exam D-XTR-DS-A-24 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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Karl
10 months ago
High Class 3 Discards? Sounds like the SAN is trying to play hard to get.
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Lemuel
10 months ago
Low Buffer to Buffer Credits? Looks like someone's been on a strict SAN diet.
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Reita
10 months ago
Buffer to Buffer Credits, huh? Sounds like a game of credit card roulette to me.
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Jacki
9 months ago
D) High Class 3 Discards
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Alecia
10 months ago
C) Low Buffer to Buffer Credits
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Germaine
10 months ago
C) Low Buffer to Buffer Credits
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Shanice
10 months ago
B) High Buffer to Buffer Credits
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Tegan
10 months ago
B) High Buffer to Buffer Credits
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Laine
10 months ago
A) High CRC error count
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Mona
10 months ago
A) High CRC error count
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Nelida
10 months ago
I think both high CRC error count and high Class 3 Discards could point to a physical issue.
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Candida
10 months ago
I believe high Class 3 Discards could also be a key indicator of a physical issue.
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Kate
11 months ago
High CRC error count? Looks like someone's been playing a little too rough with their fiber optics.
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Inocencia
10 months ago
C) Low Buffer to Buffer Credits
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Marta
10 months ago
B) High Buffer to Buffer Credits
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Mary
10 months ago
A) High CRC error count
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Weldon
11 months ago
I agree with Arlette, high CRC error count could indicate a physical issue.
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Arlette
11 months ago
I think the key indicator of a physical issue would be high CRC error count.
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