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

TopicDetails
Topic 1
  • Overview of XtremIO and X2 Features: This section is designed for storage administrators and IT professionals working with Dell XtremIO systems. It examines the differences and similarities between XtremIO and X2 functionalities, with a particular focus on their graphical user interfaces and the enhancements in the X2 version. Candidates are expected to demonstrate their ability to identify and distinguish between various XtremIO and X2 model offerings.
Topic 2
  • XtremIO Online Cluster Expansion: Storage capacity planners and system upgrade specialists will be assessed on their knowledge of expanding XtremIO clusters while systems remain operational. This section covers the identification of necessary resources, preparation steps and prerequisites, and the detailed procedures for scaling clusters from single X-Brick configurations to dual and multi X-Brick setups.
Topic 3
  • XtremIO and X2 Initial Configuration: System administrators and storage implementation specialists will be tested on their ability to perform initial setup of XtremIO systems. This includes the deployment of the XtremIO Management Server (XMS), along with an understanding of its support options and associated safety measures. The exam also covers the installation of Easy-CLI and XtremApp, procedures for cluster setup and validation, as well as the configuration of ESRS and ESRS VE.
Topic 4
  • XtremIO and X2 Maintenance: This substantial portion of the exam is tailored for storage support engineers and maintenance technicians. It evaluates the ability to identify system resources, execute power-related procedures, and interpret cluster health indicators and component resilience. Candidates should be prepared to demonstrate their proficiency in replacing various Field Replaceable Units (FRUs) and utilizing the Technician Advisor tool for system installations and health assessments.

EMC Dell XtremIO Operate Achievement Sample Questions (Q42-Q47):

NEW QUESTION # 42
Which performance metric is a measure of the time taken to complete an operation?

  • A. Bandwidth
  • B. Throughput
  • C. Latency
  • D. IOPS

Answer: C

Explanation:
Latency is the performance metric that measures the time taken to complete an operation. It is often described as the delay between a user's action and the response from the system to that action.In the context of storage systems like XtremIO, latency refers to the time it takes from when a read or write request is issued to when it is completed1.
Here's a breakdown of the options provided:
* A.Bandwidth: Bandwidth measures the amount of data that can be transferred over a network or processed by a system in a given amount of time.It is not a direct measure of time taken to complete an operation2.
* B.Latency: Latency is the correct answer as it specifically measures the time delay in completing an operation.It is a critical metric in storage and networking environments, where lower latency is generally indicative of faster system performance1.
* C.IOPS (Input/Output Operations Per Second): IOPS is a performance metric that measures the number of read and write operations that can be performed in one second.While it is related to system performance, it does not measure the time taken to complete a single operation2.
* D.Throughput: Throughput refers to the rate at which data is processed or transferred.It is similar to bandwidth and measures performance over time but does not specifically measure the time taken to complete an individual operation2.


NEW QUESTION # 43
What is the minimum and maximum number of SSDs per DAE for an XtremIO X2-S?

  • A. 36 and 72
  • B. 18 and 36
  • C. 18 and 72
  • D. 12 and 36

Answer: D

Explanation:
* The XtremIO X2-S system allows for a minimum of 12 SSDs and a maximum of 36 SSDs per Disk Array Enclosure (DAE).
* This flexibility in the number of SSDs per DAE allows for scalable storage configurations tailored to varying performance and capacity requirements.
References:
* Dell XtremIO X2-S Technical Specifications
* XtremIO Product Documentation


NEW QUESTION # 44
A systems administrator wants to add an XtremlO cluster to their VPLEX environment. Which activity must the administrator perform first?

  • A. Zone the VPLEX to XtremIO Storage Controllers
  • B. Create and map volumes dedicated to VPLEX
  • C. Create a minimum of two Initiator groups
  • D. Provision storage to the host

Answer: A

Explanation:
When integrating an XtremIO cluster into a VPLEX environment, the first activity that needs to be performed is zoning the VPLEX to the XtremIO Storage Controllers. Zoning is a SAN (Storage Area Network) configuration step that controls access between the storage and hosts, and in this case, between VPLEX and XtremIO. Here's the process:
* Zoning: This involves configuring the SAN fabric to ensure that the VPLEX directors can communicate with the XtremIO Storage Controllers.Zoning is crucial for establishing a secure and efficient connection between the two systems1.
* Provisioning Storage (OA): While provisioning storage to the host is an important step, it typically comes after the zoning has been established.
* Creating and Mapping Volumes (OB): Creating and mapping volumes dedicated to VPLEX is also a subsequent step that can only be performed after the zoning is in place.
* Initiator Groups (OC): Creating initiator groups is necessary for mapping storage to hosts, but it is not the first step in the process.The initiator groups will be used after zoning is completed to define access control for the VPLEX directors1.
In summary, the first activity to perform when adding an XtremIO cluster to a VPLEX environment is to zone the VPLEX to the XtremIO Storage Controllers (OD), as this establishes the foundational connectivity required for further configuration and provisioning steps1.


NEW QUESTION # 45
A systems administrator just added three new VMware hosts to a VMware cluster that needs to access data from an XtremIO. Which setting should be adjusted for optimal use of the XtremIO with the three new hosts?

  • A. Manually align the newly attached VMFS file systems
  • B. Set the FC Adapter Policy IO Throttle Count to 2048
  • C. Adjust the LUN queue depth value of the Emulex or QLogic HBAs
  • D. Set the multipathing software to use "Fixed policy" for each LUN

Answer: C

Explanation:
For optimal performance when integrating new VMware hosts with an XtremIO storage array, it is recommended to adjust the LUN queue depth value of the Host Bus Adapters (HBAs). Here's a detailed explanation:
* LUN Queue Depth: This setting determines the number of I/O operations that can be queued to a logical unit number (LUN) on the storage system at one time.Properly configuring the queue depth can help optimize performance by allowing enough I/O operations to be processed concurrently without overwhelming the storage system1.
* Emulex or QLogic HBAs: These are common types of HBAs used in VMware environments.Adjusting the LUN queue depth on these HBAs ensures that they are tuned to handle the I/O characteristics of the XtremIO storage array1.
* Optimal Setting: The optimal LUN queue depth value can vary based on the specific environment and workload.However, Dell Technologies provides guidance on recommended settings for various configurations, which can be found in their official documentation or support resources1.
* Impact on Performance: By adjusting the LUN queue depth, the storage I/O operations from the VMware hosts can be more efficiently managed, leading to better overall performance and reduced latency for applications accessing the XtremIO storage1.


NEW QUESTION # 46
What is an accurate statement when managing multiple XtremIO X2 clusters?

  • A. Clusters can only be added/removed through the XMCLI
  • B. One XMS can manage up to 16 X-Brick clusters
  • C. Virtual XMS can manage up to four X-Brick clusters
  • D. XtremIO X1 XMS can manage XtremIO X2 clusters

Answer: B

Explanation:
When managing multiple XtremIO X2 clusters, it is accurate that a single XtremIO Management Server (XMS) can manage up to 16 X-Brick clusters. The XMS is a key component of the XtremIO environment, providing centralized management and monitoring capabilities for XtremIO clusters. Here's a detailed explanation:
* XMS Capabilities: The XMS is designed to manage multiple XtremIO clusters, offering a unified view and control over the entire storage environment.It allows administrators to perform various tasks such as provisioning, monitoring, and managing the clusters from a single interface1.
* Scalability: The ability to manage up to 16 X-Brick clusters with a single XMS highlights the scalability of the XtremIO architecture.This scalability is essential for large-scale deployments where multiple clusters are used to meet performance and capacity requirements1.
* Virtual and Physical XMS: The XMS can be deployed as either a physical server or a virtual machine (VM), providing flexibility in deployment options.Regardless of the deployment model, the XMS retains its capability to manage multiple clusters1.
* XMCLI: While the XtremIO Management Command Line Interface (XMCLI) is used for managing clusters, it is not the only way to add or remove clusters.The XMS provides a graphical user interface (GUI) as well, which can also be used for these tasks1.
* XtremIO X1 and X2 Compatibility: The statement regarding XtremIO X1 XMS managing XtremIO X2 clusters (OC) would require specific compatibility information, which typically depends on the software version and feature support2.
* Limitations of Virtual XMS: The statement that a virtual XMS can manage up to four X-Brick clusters (OD) may not be accurate without specific context, as the capability can depend on the XMS version and the deployment configuration1.


NEW QUESTION # 47
......

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