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Dell EMC D-XTR-DS-A-24 Exam - Topic 5 Question 22 Discussion

Actual exam question for Dell EMC's D-XTR-DS-A-24 exam
Question #: 22
Topic #: 5
[All D-XTR-DS-A-24 Questions]

A storage administrator is configuring SAN switches and zoning to connect a four X-Brick XtremlO array. A VMware ESXi server is hosted on a blade chassis with 16 HBA ports.

In addition, the SAN consists of two separate SAN switches.

What is the recommended XtremlO best practice for zoning?

Show Suggested Answer Hide Answer
Suggested Answer: B

For a four X-Brick XtremIO array, the recommended best practice for zoning in a SAN environment with VMware ESXi servers is to have two HBA connections per host, with each host connected to both SAN switches. This configuration allows for redundancy and high availability. The zoning should be set up with a single initiator (the HBA on the host) to multiple targets (the storage controllers' HBA ports) per zone. This ensures that each host has multiple paths to the storage, allowing for failover and load balancing. The maximum number of paths for each device should be 16 to prevent exceeding the path limits and to maintain optimal performance1.


Dell Technologies community discussions on XtremIO Zoning Best Practices provide insights into the recommended zoning configurations for different XtremIO setups1.

The Host Configuration Guide for XtremIO, which can be found on the Dell EMC support site, offers detailed instructions on zoning best practices for XtremIO storage arrays2.

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by Shannan at Apr 07, 2025, 09:46 AM

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Glory
2 months ago
Surprised to see so many options, thought there’d be a clear winner!
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Emogene
2 months ago
Definitely agree with B, it’s the best practice for performance.
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Nicholle
2 months ago
I think option B is the way to go!
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Lashawnda
3 months ago
Wait, why would you limit to 4 paths per LUN? Seems off.
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Jeannine
3 months ago
I prefer A, it keeps things organized with multipathing.
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Leonie
3 months ago
I feel like option A aligns with best practices we reviewed, especially with zoning the storage controllers' HBA ports to separate switches for redundancy.
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Gregoria
3 months ago
I'm a bit confused about the maximum paths per LUN. I thought we were supposed to have more than 4 paths, but I can't recall the exact number.
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Helene
4 months ago
I think option B sounds familiar because it mentions two HBA connections per host, which we practiced in a similar question.
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Sarah
4 months ago
I remember we discussed the importance of multipathing in our last class, but I'm not sure if it's best to zone all host ports to single LUNs.
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Chery
4 months ago
Alright, I've got a good handle on this. The best practice is to have two HBA connections per host, with each host connected to both SAN switches. And the zoning should be set up with a single initiator and multiple targets per zone, with a maximum of 16 paths per device. Option B looks like the winner here.
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Angelica
4 months ago
I'm a bit confused by all the different SAN components and the specific requirements for the XtremlO array. I'll need to take my time and really think through each answer choice to make sure I select the right one.
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Leota
4 months ago
Okay, let's see here. The key things I'm looking for are how to properly zone the SAN switches and configure the multipath connections. I think option B might be the way to go, but I'll double-check the details.
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Marshall
5 months ago
Hmm, the details about the X-Brick XtremlO array and the blade chassis with 16 HBA ports are throwing me off a bit. I'll need to carefully read through the options to make sure I understand the best practice recommendations.
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Yen
5 months ago
This looks like a pretty straightforward SAN configuration question. I think I can handle this one.
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Annita
10 months ago
Option D looks tempting, but I don't think I'd want to be the one trying to explain a 'maximum of 4 paths' configuration to my boss. Gotta go with C on this one, keep it simple and reliable.
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Cathern
10 months ago
Ah, the age-old debate of single vs. multiple initiators. Personally, I'd go with option B. It's like having a personal chauffeur versus Uber - you can't beat the convenience of multiple targets!
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Rosalind
9 months ago
Definitely, it's always good to have multiple targets for better performance.
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Mona
9 months ago
I agree, having two HBA connections per host seems like a solid choice.
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Alpha
9 months ago
Option B sounds like the way to go. More connections, more flexibility.
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Millie
10 months ago
I'm not sure about the 'single initiator/multiple targets' part in option C. Isn't that a bit limiting? I'd lean more towards option B, it seems to offer more flexibility.
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Marta
9 months ago
Having the host connected to each SAN switch in option B can also provide redundancy in case one switch fails.
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Marta
9 months ago
Option B also allows for a maximum of 16 paths for each device, which can be beneficial for performance.
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Marta
9 months ago
I agree, option B does seem to offer more flexibility with two HBA connections per host.
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Brett
10 months ago
Option C seems straightforward and follows the best practices for XtremlO zoning. I like how it mentions the maximum of 4 paths per LUN per zone.
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Carylon
10 months ago
Why do you think option B is better?
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Donette
10 months ago
I disagree, I believe option B is the way to go.
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Carylon
11 months ago
I think the recommended best practice is option A.
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