Get Dell EMC D-PSC-MN-01 Exam Practice Questions - Real and Updated

Answer : B

In the output of the isi devices drive list command shown in the exhibit, the drive in location C1 is marked as 'USED,' with the serial number VRKL242P. This indicates that the drive has been replaced but has not yet been initialized or formatted for use within the PowerScale cluster.

To make the drive usable, it must be formatted. The correct procedure to follow is to use the isi devices drive format command, specifying the drive location (C1 in this case). This will prepare the drive for use in the cluster, ensuring that it is recognized and available for OneFS to start writing data to it.

Steps to format the drive:

Log in to the OneFS cluster using an SSH session with an account that has the necessary privileges.

Run the following command to format the new drive:

bash

Copy code

isi devices drive format C1

This command will format the drive located at C1, making it available for use in the cluster.

After the format is complete, verify that the drive is now in a HEALTHY state by running:

isi devices drive list

This should display the new status of the drive as HEALTHY, indicating that it has been successfully formatted and is ready for data operations.

This process is outlined in Dell's PowerScale Administration Guide and ensures the correct initialization of new or replaced drives.

Answer : B

Dell EMC PowerScale Gen 6.5 nodes support high-speed network interfaces for external connectivity.

Available External Network Ports:

10 Gigabit Ethernet (10GbE)

25 Gigabit Ethernet (25GbE)

100 Gigabit Ethernet (100GbE)

Details:

10GbE: Common in many data centers, suitable for moderate workloads.

25GbE: Offers higher bandwidth, ideal for performance-intensive applications.

100GbE: Provides maximum throughput, supporting the most demanding workloads.

Dell PowerScale Reference:

Dell EMC PowerScale Networking Guide:

Network Interface Options Section:

Details supported network speeds and configurations for Gen 6.5 nodes.

Best Practices:

Match network infrastructure to the capabilities of the nodes.

Ensure switches and cabling are compatible with chosen network speeds.

Answer : D

The isi diagnostics gather command is used in Dell PowerScale (formerly known as Isilon) clusters to collect comprehensive diagnostic information, including system logs, configuration files, and other pertinent data from all nodes in the cluster. This gathered information is essential for troubleshooting and is often requested by Dell Support to diagnose and resolve issues.

Purpose of isi diagnostics gather:

The command aggregates logs and diagnostic information across the entire cluster.

It collects data such as event logs, configuration settings, and performance metrics.

Use Cases:

Troubleshooting: When experiencing issues with the cluster, this command helps in collecting necessary data for analysis.

Support Assistance: Dell Support may request the output from this command to assist in diagnosing cluster problems.

Process:

When executed, the command generates a single compressed file containing all the collected information.

The file can be securely sent to Dell Support for further analysis.

Dell PowerScale Reference:

Dell EMC PowerScale OneFS CLI Administration Guide: This guide provides detailed information on command-line utilities, including isi diagnostics gather.

Dell EMC Knowledge Base Articles: Articles related to troubleshooting often reference the use of isi diagnostics gather to collect logs.

Answer : C

When setting up a new Dell EMC PowerScale F600 cluster, proper cabling is crucial for network connectivity and cluster functionality. The F600 nodes have multiple network ports:

Front-End (Client) Ports: For client network access.

Back-End (Internal) Ports: For node-to-node communication within the cluster.

Management Ports: Dedicated for node management and should not be used for client traffic.

Probable Issue:

Incorrect Cabling to Management Ports: If the nodes are connected to the management ports instead of the front-end network ports, clients will not be able to access the cluster, and the nodes will not respond to pings on the client network.

Key Points:

Management Ports Usage: Reserved for administrative tasks like cluster management and should not carry client data.

Impact of Misconfiguration: Connecting client networks to management ports leads to inaccessible services for clients.

Dell PowerScale Reference:

Dell EMC PowerScale Networking Configuration Guide:

Chapter on Network Connectivity emphasizes the correct usage of network ports.

Illustrations showing proper cabling of front-end and management ports.

Installation Best Practices:

Verify all network connections according to the hardware installation guide.

Use the correct network ports for client and management traffic.

Answer : D

Upgrading to OneFS 8.2 requires the cluster to be on a version that supports direct upgrade paths.

Supported Upgrade Paths:

From OneFS 7.2.1.x:

Earlier Versions:

Dell PowerScale Reference:

Dell EMC PowerScale OneFS Upgrade Guide:

Supported Upgrade Paths Section:

Lists versions that can be directly upgraded.

Upgrade Planning:

Provides guidance on preparing for the upgrade process.

Best Practices:

Use the OneFS Upgrade Advisor to assess cluster readiness.

Backup critical data and configurations before proceeding.

Review release notes for known issues and new features.