Dell EMC Dell Midrange Storage Solutions Design 2023 D-MSS-DS-23 Exam Practice Test

Answer : D

Skew refers to the non-uniform distribution of I/O over storage capacity. In storage systems, skew is an important factor to consider as it indicates that certain areas of the storage receive more I/O operations than others. This can lead to performance hotspots and affect the overall efficiency of the storage system. Managing skew is essential to ensure balanced performance across the storage array. Reference: Dell Midrange Storage Performance Guide

Answer : C

The command supportshow is used to gather comprehensive data from Brocade switches. This command collects extensive diagnostic information about the switch, including configuration details, hardware status, and various operational statistics. Here's a step-by-step explanation of the supportshow command:

Access the Brocade Switch: Connect to the Brocade switch via SSH or through a console connection.

Enter the Command: Type supportshow in the command line interface (CLI) and press Enter.

Data Collection: The command will begin collecting a wide array of information from the switch. This includes:

Hardware and firmware versions

Port status and configurations

Zoning information

Error logs and statistics

Environmental data (temperature, power supply status, etc.)

Output Review: The gathered data is typically extensive and can be used for troubleshooting, performance analysis, and ensuring the switch is operating correctly.

Save the Output: The output can be redirected to a file for later review or analysis by technical support teams.

Dell Technologies PowerStore Documentation

Dell Entry-Level and Mid-Range Storage Community

Dell Storage Products Overview

Answer : B

The maximum number of thin clones per base LUN within Dell Unity XT is 32. Thin clones are efficient copies of a LUN (Logical Unit Number) that share the same underlying storage blocks, allowing for quick and space-saving creation of additional LUNs based on the same data. Reference: Dell Unity XT Thin Cloning Guide

Answer : B

In the PowerStore sizing tool, the default Data Reduction Ratio (DRR) values for block and file workloads are Block = 4:1 and File = 2:1. These values represent the expected reduction in data size due to compression and deduplication, which helps in planning the storage capacity and performance requirements effectively. Reference: Dell PowerStore Sizing Tool Documentation

Answer : A

According to Dell best practices for PowerStore solutions, when supporting hosts that use both 100 Gb/s Ethernet (Eth) connectivity and 16 Gb/s Fibre Channel (FC) connectivity, the I/O modules should be populated as follows:

Slot 0: Install the 100 Gb/s Ethernet I/O module. This ensures that the high-speed Ethernet connections are handled by the first slot, which is typically prioritized for network connectivity.

Slot 1: Install the 16 Gb/s Fibre Channel I/O module. This setup leverages the capabilities of the second slot to manage Fibre Channel traffic efficiently.

This configuration ensures optimal performance and adherence to best practices, providing a balanced distribution of network and storage connectivity within the PowerStore system.

Dell Technologies PowerStore Documentation

Dell Entry-Level and Mid-Range Storage Community

Dell Storage Products Overview

Answer : D

Unity Designer is a tool used to design and configure Dell EMC Unity storage systems. Two of the key input parameters for Unity Designer are Block and File resources, which include configuring LUNs, NAS servers, and file systems, and Drive Modules, which refer to the physical drives and their configurations within the storage system.

Dell EMC Unity Designer User Guide.

Dell EMC Unity Configuration Best Practices.

Answer : C

Grab Tool Overview:

The Grab tool is used for collecting diagnostic information from host systems to aid in troubleshooting and performance analysis.

Supported Operating Systems:

The Grab tool can run on a variety of host operating systems, including Windows, UNIX, and ESXi.

This broad support ensures that administrators can gather necessary diagnostic data across different environments.

Other Options:

Linux, macOS, and Tru64: Not all these operating systems are supported by the Grab tool.

OS/390, Windows, and Linux: OS/390 is not commonly supported.

ESXi, ChromeOS, and OS/390: ChromeOS and OS/390 are not typically supported by the Grab tool.

Dell Midrange Storage Reference:

Dell documentation provides detailed instructions on using the Grab tool and lists the supported operating systems.

Community forums and support resources from Dell Technologies offer additional insights and user experiences.

Dell Grab Tool Documentation