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EMC D-XTR-DS-A-24 Exam Syllabus Topics:

Topic
Details

Topic 1

XtremIO and X2 Operations and Management: For storage administrators and IT professionals, this section of the exam covers the core components and functionalities of XtremIO and XtremIO X2 storage systems. It encompasses hardware and software components specific to XtremIO X2, architectural distinctions between XtremIO and XtremIO X2, and management of the XtremIO X2 Management Server.

Topic 2

XtremIO X2 Optimization and Performance Management: For performance analysts and storage administrators, this section addresses XtremIO X2 system optimization and performance management. It provides an overview of performance metrics, XtremIO X2 architecture, and the application of environmental, host, and benchmarking tools for performance measurement and improvement.

Topic 3

Host Configurations in XtremIO and X2 Environments: For system administrators and storage specialists, this section explores various host configurations crucial for optimal performance in XtremIO and XtremIO X2 environments. It covers common setups like host bus adapters (HBAs) and multipathing, as well as ESXi-specific configurations. The section also addresses configurations for other operating systems such as Microsoft Windows, Linux, Sun Solaris, IBM AIX, and HP-UX, ensuring broad compatibility and performance across different IT environments.

Topic 4

Designing an XtremIO X2 Solution: For solution architects and storage designers, this comprehensive section addresses design considerations and best practices for XtremIO X2 solutions. It covers performance design considerations to meet required standards, and designing solutions with features like deduplication, compression, encryption, and replication.

EMC Dell XtremIO Design Achievement Sample Questions (Q55-Q60):

NEW QUESTION # 55
Which software package is required for Fast I/O Failure for the AIX operating system?

A. PowerPath
B. MPIO
C. ODM
D. LVM

Answer: B

Explanation:
MPIO (MultiPath I/O) is required for Fast I/O Failure for the AIX operating system as it helps in managing multiple paths for redundancy and failover.

NEW QUESTION # 56

A customer wants to connect their Storage Controllers to Fibre Channel switches using as many Fibre Channel ports as possible. Which ports of each Storage Controller shown in the exhibit should be used?

A. 1,2, 3, and 4
B. 1 and 2
C. 2 and 3
D. 3 and 4

Answer: A

Explanation:
To maximize the connectivity between Storage Controllers and Fibre Channel switches, all available ports should be utilized. This ensures redundancy and maximizes throughput. The exhibit provided shows a Storage Controller with four ports labeled 1, 2, 3, and 4. Without specific design documents, the general best practice is to use all available ports for suchconnections, assuming the ports are configured for Fibre Channel traffic and the infrastructure supports it.
References:
* General best practices for Fibre Channel connectivity and port usage are discussed in various Dell EMC documents, such as the "Introduction to XtremIO X2 Storage Array" and "Configuring Fibre Channel Storage Arrays" documents12.
* Specific port configurations and their usage would be detailed in the Dell XtremIO Design documents, which would provide definitive guidance on which ports to use for connecting to Fibre Channel switches.

NEW QUESTION # 57
You are connecting a Linux host to an XtremlO array. The host will be connected to the array using the QLogic HBA's. Based on the recommended best practice, what is the value for the queue depth?

A. 0
B. 1
C. 2
D. 3

Answer: A

Explanation:
When connecting a Linux host to an XtremIO array using QLogic HBAs, the recommended best practice for the queue depth value is 256.This setting ensures that the XtremIO X2 storage arrays handle an optimal number of SCSI commands, including I/O requests, which is crucial for maintaining high performance and efficient data processing1.
References:
* The Dell EMC Ready Solutions for Oracle with XtremIO X2 document specifies the LUN queue depth to the recommended value of 256 for the QLogic HBAs used in their virtualized databases server1.
* Additional discussions on HBA Queue Depth and host settings for environments utilizing XtremIO can be found in the Dell Community forums2.

NEW QUESTION # 58
What is an accurate statement with regards to restoring data to a production volume at a later time using XVC?

A. Customer can restore from a read write repurpose copy
B. Restore option is presented only from a read only copy
C. There is no need to unmount a production volume before it can be restored
D. Restore operation takes longer than snap shot creation time

Answer: C

Explanation:
Using XtremIO Virtual Copies (XVC), data can be restored to a production volume without the need to unmount it first. This feature allows for greater flexibility and efficiency in managing data restoration processes.The XVC technology enables the creation of space-efficient snapshots and copies of volumes that can be used for various purposes, including data restoration1.
References:
* The XtremIO Snapshots (XVC) Inquiries on Dell Technologies Community Forum provides insights into the capabilities of XVC, including the ability to restore data without unmounting the production volume1.
* Additional information on the functionality and usage of XVC can be found in the XtremIO Host Configuration Guide2.

NEW QUESTION # 59
What is true about the flow control feature when configuring the iSCSI SAN from the host to the XtremlO cluster?

A. Enable flow control features on the server, switch(s) and array ports
B. Disable flow control features on the server, switch(s) and array ports
C. Disable flow control features on the server and array ports only
D. Enable flow control features on the server and array ports only

Answer: B

Explanation:
When configuring the iSCSI SAN from the host to the XtremIO cluster, it is recommended to disable flow control features on the server, switches, and array ports.Flow control can cause a performance impact by serializing the flow for iSCSI ports, which is not desirable in high-performance storage solutions like XtremIO1. Disabling flow control ensures that the storage array operates without the limitations that flow control can impose, thus maintaining optimal performance.
References:
* Dell EMC Switch Configuration Guide for iSCSI and Software-Defined Storage provides guidelines for the design and configuration of storage networks for iSCSI SAN, which includes recommendations on flow control settings2.
* Community discussions on Dell Technologies website where it is mentioned that the latest best practices advise against enabling flow control for iSCSI with XtremIO, as it limits performance1.

NEW QUESTION # 60
......

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