Dell EMC Dell XtremIO Operate Achievement Exam Practice Test

Answer : B

The transfer rate for disk 19F shown in the exhibit is 2 MB/s. The exhibit indicates that the scale for 'Disk Bytes/sec' is set to 0.00010000. Given this scale, the displayed value of approximately 200 (in the highlighted blue line) corresponds to 200 x 0.00010000 MB/s, which equals 2 MB/s.

Analysis of the exhibit data and the scale provided.

General understanding of performance monitoring metrics and their interpretations.

Answer : D

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.

Answer : B

In a heterogeneous environment with multiple storage arrays connected to VMware vSphere, setting Disk.SchedQuantum to 64 is recommended.

This setting optimizes the scheduling of I/O requests and helps in balancing the load across different storage arrays.

Proper configuration of Disk.SchedQuantum enhances the performance and efficiency of the storage environment.

VMware Best Practices for Storage

Dell XtremIO VMware Integration Guide

Answer : D

The XtremIO admin account is a built-in account that is essential for the operation and management of the XtremIO storage system. One of the key characteristics of this account is that it cannot be removed from the system. This is to ensure that there is always an account available with the necessary privileges to manage and maintain the storage array1.

The admin account has a high level of access privileges, which are required for performing various administrative tasks such as managing users, configuring the system, and performing updates. While the admin account does not allow root level access as this is restricted to EMC support engineers only, it does provide a comprehensive set of capabilities for system administration1.

It's important to note that while the admin account is used for many administrative tasks, it is not typically used to upload files directly to the XMS (OA) or to install the cluster (OC). These tasks are handled through other mechanisms within the XtremIO system1. The admin account's primary role is to provide a secure and consistent way to administer the storage array, and its presence is a critical part of the system's security and operational framework1.

Answer : C

Small, random workloads are best suited for high IOPS in a VDI (Virtual Desktop Infrastructure) environment.

Such workloads typically consist of numerous small I/O operations, which require a high number of IOPS to maintain performance.

XtremIO's architecture is optimized for handling small, random I/O patterns efficiently, making it ideal for this type of VDI workload.

Dell XtremIO VDI Best Practices

Storage Performance Fundamentals

Answer : D

To double the throughput on an existing dual XtremIO X1 10 TB X-Brick cluster, adding a dual 10 TB X-Brick Expansion Kit is recommended.

XtremIO uses a scale-out architecture, and adding a dual X-Brick expansion will increase both storage capacity and performance.

This expansion ensures balanced performance improvement and leverages the best practices configuration already in place for the existing setup.

Dell XtremIO Scale-Out Performance Guide

XtremIO Expansion Best Practices

Answer : C

To create an iSCSI portal using the XtremIO X2 XMS WebUI, an administrator should navigate to Cluster Settings.

Within Cluster Settings, the configuration options for creating and managing iSCSI portals are available.

This is the starting point for setting up network configurations and ensuring the proper operation of iSCSI connections.

Dell XtremIO X2 Configuration Guide

XtremIO XMS WebUI Documentation