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Dell EMC D-XTR-DS-A-24 Exam - Topic 4 Question 33 Discussion

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?
B) Two HBA connections per host Single initiator/multiple targets per zone Maximum of 16 paths for each device Host connected to each SAN switch
A) First Storage Controllers' HBA ports to the first switch Second Storage Controllers' HBA ports to the second switch Multipath all host ports to single LUNs per zone
C) Single Storage Controller HBA port to the first switch Single Storage Controller HBA port to the second switch Single initiator/multiple targets per zone Maximum of 4 paths for each LUN per zone
D) Two HBA connections per host connected to a single switch Multiple initiators/multiple targets per zone Maximum of 4 paths for each LUN per zone

Dell EMC D-XTR-DS-A-24 Exam - Topic 4 Question 33 Discussion

Actual exam question for Dell EMC's D-XTR-DS-A-24 exam
Question #: 33
Topic #: 4
[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 Marquetta at Mar 08, 2026, 10:43 AM

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Donte
24 days ago
Wait, only 4 paths per LUN in C? That feels too limiting.
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Hyun
29 days ago
I disagree, A seems more reliable with multipathing.
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Wendell
1 month ago
Option B is the way to go! Two HBA connections are essential.
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Shayne
1 month ago
I thought multiple initiators/multiple targets was a bad practice?
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Herminia
1 month ago
Two HBA connections per host is a must for performance.
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Sherrell
2 months ago
Wait, only 4 paths per LUN in C? That seems too limiting!
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Tiera
2 months ago
I disagree, A seems more reliable for redundancy.
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Alyce
2 months ago
Option B is definitely the way to go!
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Terina
2 months ago
I vaguely recall that having each host connected to both switches is a best practice, but I can't remember which option that was in.
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Rene
2 months ago
I’m a bit confused about the maximum paths per LUN. Was it 4 or 16? I need to double-check my notes on that.
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Galen
3 months ago
I think I practiced a question similar to this where we had to connect multiple initiators to targets. I feel like option B makes sense for that.
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Valentin
3 months ago
I remember something about having multiple paths for redundancy, but I'm not sure if it's two HBA connections per host or something else.
upvoted 0 times
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