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Question 43 - D-XTR-DS-A-24 discussion

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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?

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
Answers
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
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
Answers
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
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
Answers
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
Answers
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
Suggested answer: B

Explanation:

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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asked 16/09/2024
Davide Maranzana
33 questions
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