Dell EMC Dell XtremIO Deploy Achievement D-XTR-DY-A-24 Exam Questions

Answer : D

For the integration of Oracle with XtremIO, the best practice for HBA drivers includes setting the LUN-queue depth to optimize performance. If a single host is connected to the X-Brick, the LUN-queue depth can be set to the maximum supported by the HBA, which is 256 for QLogic HBAs1. As additional hosts are added, this setting should be reduced proportionately until reaching a minimum of 32 to maintain optimal performance1.

Assess Host Connection: Determine the number of hosts connected to the X-Brick.

Set Queue Depth: For a single host, set the queue depth to 256. Adjust as necessary when more hosts are added.

Configure HBA Settings: Apply the queue depth setting in the HBA configuration.

Test Performance: Monitor the system's performance to ensure the settings are optimal.

Adjust if Necessary: If performance issues are observed, adjust the queue depth settings as needed.

Answer : B

When configuring a VMware Horizon environment with 1000 linked clones connected to an XtremIO storage system, the minimum number of datastores required to support this configuration, based on best practices, is four. This recommendation ensures optimal performance and manageability while avoiding overcommitment of resources.

The process for determining the minimum number of datastores involves:

Assessing Performance Needs: Evaluate the performance requirements of the linked clones, considering factors such as IOPS (Input/Output Operations Per Second) and throughput.

Understanding XtremIO Capabilities: Recognize that XtremIO's all-flash array provides high performance and low latency, which can support a large number of clones per datastore.

Considering VMware Best Practices: VMware's best practices suggest balancing the number of clones across multiple datastores to optimize performance and manageability1.

Calculating Datastore Requirements: For 1000 linked clones, dividing them across four datastores allows for sufficient distribution without exceeding the capabilities of the XtremIO system.

Implementing the Configuration: Create and configure the four datastores within the VMware Horizon environment, ensuring they are properly connected and recognized by the XtremIO storage system.

Monitoring and Adjusting: After implementation, continuously monitor the performance and capacity of the datastores, making adjustments as necessary to maintain optimal operation.

It's important to note that while four is the minimum recommended number based on best practices, the actual number may vary depending on specific environmental factors and requirements. Always refer to the latest official documentation and consult with Dell support for tailored advice.

Answer : B

Identify the Components: According to the Dell XtremIO Deploy Achievement document, the XtremIO X1 system includes a Storage Controller (SC) and a Battery Backup Unit (BBU)1.

Understand the Configuration: For a single X-Brick cluster, the left power supply in Storage Controller 1 (X1-SC1-PSU-L) should be connected to the corresponding BBU to ensure proper power redundancy and failover capabilities1.

Determine the Correct Connection: The document specifies that each Storage Controller's left power supply connects to Output1 of the BBU within the same X-Brick cluster1.

Verify the Answer: Based on the information provided, the correct power cable Explanation:connection for the left power supply in Storage Controller 1 to the Battery Backup Unit in an XtremIO X1 single X-Brick cluster is to BBU1-Output1, which corresponds to option OB

Verify the Answer: Based on the information provided, the correct power cable Explanation:connection for the left power supply in Storage Controller 1 to the Battery Backup Unit in an XtremIO X1 single X-Brick cluster is to BBU1-Output1, which corresponds to option OB1.

Answer : A

To create an iSCSI portal using the XtremIO X2 XMS WebUI, an administrator would start the configuration process in the ''Configuration'' section. Here's how the process typically unfolds:

Log into XMS WebUI: The administrator logs into the XtremIO Management Server (XMS) Web User Interface (WebUI).

Navigate to Configuration: Within the WebUI, the administrator navigates to the ''Configuration'' tab. This section contains settings and options for managing and configuring the storage array.

Access iSCSI Options: Under the ''Configuration'' tab, the administrator locates the options for iSCSI settings. This may involve expanding menus or selecting specific sub-options related to iSCSI.

Create iSCSI Portal: Once in the iSCSI settings area, the administrator can create a new iSCSI portal. This involves specifying details such as IP addresses, port numbers, and access controls.

Save and Apply: After entering all necessary information, the administrator saves the configuration and applies it to make the iSCSI portal active.

Verify Connectivity: Finally, the administrator verifies that the iSCSI portal is functioning correctly by connecting to it from an iSCSI initiator.

For detailed instructions and best practices, always refer to the official Dell XtremIO Deploy Achievement document1. This document provides comprehensive guidance on all aspects of setting up and managing XtremIO X2 arrays, including the creation of iSCSI portals.

Answer : C

When deploying Connect Home using FTPS at a customer site, the TCP ports that must be open between the XtremIO Management Server (XMS) and the Dell Technologies FTP server are 989 and 990. These ports are typically used for FTPS to secure the control channel (port 989) and the data channel (port 990).

The process for configuring these ports is as follows:

Identify FTPS Requirements: Understand that FTPS requires specific ports for secure communication. Port 989 is used for the FTPS control connection, and port 990 is used for the data transfer.

Configure Firewall Settings: On the customer's firewall, configure the settings to allow outbound connections on ports 989 and 990 to the Dell Technologies FTP server.

Verify Connectivity: After configuring the firewall, verify that the XMS can establish a connection to the Dell Technologies FTP server over these ports.

Test Connect Home Functionality: Use the Connect Home feature to ensure that the XMS can communicate securely with the Dell Technologies FTP server using FTPS.

Consult Official Documentation: For detailed instructions and best practices, refer to the official Dell XtremIO Deploy Achievement document1. This document provides comprehensive guidance on all aspects of setting up and managing XtremIO systems, including the deployment of Connect Home using FTPS.

By following these steps and referring to the official documentation, you can ensure that the necessary ports are open for the Connect Home feature to function correctly in an XtremIO deployment.

Answer : B

Before presenting XtremIO volumes to a new Linux host, it is recommended to disable the I/O elevators. This step is crucial for optimizing performance and ensuring that the storage system works efficiently with the host's operating system.

The I/O elevator is a Linux kernel feature that controls the order in which I/O operations are submitted to storage devices. It's designed to optimize the way the Linux kernel handles write and read requests. However, in the context of high-performance storage systems like XtremIO, the default I/O scheduling might not be optimal. Disabling the I/O elevators allows the XtremIO storage system to manage the I/O requests more efficiently, leveraging its built-in capabilities for performance optimization.

This information is corroborated by the Official Dell XtremIO Deploy Achievement document, which outlines the best practices for configuring XtremIO systems in various environments, including Linux hosts1.

Answer : D

The RESTful API method used to retrieve an existing configuration from an XtremIO system is the HTTP GET methD. This is a standard method used in RESTful APIs for retrieving resources. In the context of XtremIO, the GET method would be used to call endpoints that return information about the system's configuration. For example, a GET request to /api/json/v2/types/clusters would retrieve information about the clusters1. The Official Dell XtremIO Deploy Achievement document will contain specific details on the API calls and should be referred to for the most accurate instructions.