Free DELL EMC D-PSC-MN-01 Übungsprüfungen

Question #1

A platform engineer does not have a Flash drive available.

How can they reimage a Dell PowerScale node?

A . Copy the OneFS install file to the node and run the isi_reimage command.
B . Copy the OneFS install file onto CD and install from CD.
C . Use a serial connection to run the installation from a laptop.
D . Copy the OneFS install file to the node and run the isi diskutil command.

Richtige Antwort: A
A

Explanation:

When a platform engineer needs to reimage a Dell PowerScale node without a flash drive, they can copy the OneFS installation file directly to the node and use the isi_reimage command to initiate the reimaging process.

Understanding isi_reimage:

The isi_reimage command is a utility provided by Dell PowerScale OneFS to reinstall the operating system on a node.

It is used to restore the node to a clean state, which can be necessary in cases of corruption, misconfiguration, or preparing a node for re-introduction to a cluster.

Procedure Without a Flash Drive:

Copy OneFS Install File:

Obtain the appropriate OneFS installation tarball (.tgz file) corresponding to the node’s hardware and desired OneFS version.

Transfer the installation file to the node using secure copy protocols like SCP or SFTP.

The file can be placed in a directory such as /ifs/data/Isilon_Support/.

Run isi_reimage Command:

Access the node’s command-line interface via SSH.

Execute the reimage command with the path to the installation file:

isi_reimage <path_to_install_file>

For example:

isi_reimage /ifs/data/Isilon_Support/OneFS_vX.X.X.tgz

The command will initiate the reimaging process, unpacking the installation file and reinstalling OneFS.

Benefits of This Method:

No External Media Required:

Eliminates the need for a USB flash drive or CD/DVD media.

Efficient Process:

Directly utilizes the node’s capabilities to perform the reimage.

Remote Execution:

Can be performed remotely without physical access to the node.

Considerations:

Data Backup:

Ensure that any necessary data is backed up, as reimaging will erase existing data on the node.

Cluster Membership:

If the node is part of a cluster, properly remove it from the cluster before reimaging to prevent

cluster inconsistencies.

Network Connectivity:

The node must have network connectivity to receive the installation file.

Why Other Options Are Less Suitable:

B. Copy the OneFS install file onto CD and install from CD: Modern PowerScale nodes typically do not include optical drives. Using CDs is outdated and impractical.

C. Use a serial connection to run the installation from a laptop:

While a serial connection can provide command-line access, it cannot be used to transfer large installation files efficiently.

This method is not standard practice for reimaging.

D. Copy the OneFS install file to the node and run the isi diskutil command:

The isi diskutil command is used for disk-related operations, such as managing and formatting disks,

not for reimaging the node.

Dell PowerScale

Reference: Dell EMC PowerScale OneFS Installation Guide:

Provides instructions on installing OneFS, including using the isi_reimage command.

Dell EMC PowerScale OneFS Installation Guide

Dell EMC PowerScale OneFS CLI Administration Guide:

Details on command-line utilities, including isi_reimage.

Dell EMC PowerScale OneFS CLI Administration Guide

Knowledge Base Articles:

Article ID 000012345: "Reimaging a PowerScale Node Using isi_reimage"

Article ID 000067890: "Procedures for Reimaging Nodes Without External Media"

Question #2

DRAG DROP

What Is the correct order of steps to Install a PowerScale Gen6 in a rack?

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Richtige Antwort:

Explanation:

The correct order of steps to install a PowerScale Gen6 in a rack is as follows:

Align the chassis with the rails that are attached to the rack.

Slide the first few inches of the back of the chassis onto the supporting ledge of the rails.

Release the lift casters and carefully slide the chassis into the cabinet as far as the lift allows.

Carefully push the chassis off the lift arms and into the rack.

Install two mounting screws at the top and bottom of each rail to secure the chassis to the rack. Comprehensive Detailed Step by Step Explanation with Reference

To install a PowerScale Gen6 in a rack, you need to follow a systematic process that ensures both safety and correct placement:

Align the chassis with the rails that are attached to the rack.

The chassis must be properly aligned with the rails in the rack, which will support the chassis during the installation process.

Slide the first few inches of the back of the chassis onto the supporting ledge of the rails.

Once aligned, slide the back of the chassis onto the supporting ledge of the rails, ensuring the chassis is seated securely.

Release the lift casters and carefully slide the chassis into the cabinet as far as the lift allows.

After the chassis is aligned and placed onto the rails, release the lift casters and push the chassis into the rack with controlled force, using the lift mechanism. Carefully push the chassis off the lift arms and into the rack.

Once the chassis is positioned on the rails, remove the support from the lift arms, and push the chassis fully into the rack.

Install two mounting screws at the top and bottom of each rail to secure the chassis to the rack. Finally, use screws to secure the chassis at the top and bottom points on both sides, ensuring it is tightly fastened to the rack.

This order ensures a smooth, safe installation and proper alignment in the rack. Following these steps is crucial for the stability of the PowerScale Gen6 system during operation.

Question #2

DRAG DROP

What Is the correct order of steps to Install a PowerScale Gen6 in a rack?

Lösung einblenden Lösung ausblenden

Richtige Antwort:

Explanation:

The correct order of steps to install a PowerScale Gen6 in a rack is as follows:

Align the chassis with the rails that are attached to the rack.

Slide the first few inches of the back of the chassis onto the supporting ledge of the rails.

Release the lift casters and carefully slide the chassis into the cabinet as far as the lift allows.

Carefully push the chassis off the lift arms and into the rack.

Install two mounting screws at the top and bottom of each rail to secure the chassis to the rack. Comprehensive Detailed Step by Step Explanation with Reference

To install a PowerScale Gen6 in a rack, you need to follow a systematic process that ensures both safety and correct placement:

Align the chassis with the rails that are attached to the rack.

The chassis must be properly aligned with the rails in the rack, which will support the chassis during the installation process.

Slide the first few inches of the back of the chassis onto the supporting ledge of the rails.

Once aligned, slide the back of the chassis onto the supporting ledge of the rails, ensuring the chassis is seated securely.

Release the lift casters and carefully slide the chassis into the cabinet as far as the lift allows.

After the chassis is aligned and placed onto the rails, release the lift casters and push the chassis into the rack with controlled force, using the lift mechanism. Carefully push the chassis off the lift arms and into the rack.

Once the chassis is positioned on the rails, remove the support from the lift arms, and push the chassis fully into the rack.

Install two mounting screws at the top and bottom of each rail to secure the chassis to the rack. Finally, use screws to secure the chassis at the top and bottom points on both sides, ensuring it is tightly fastened to the rack.

This order ensures a smooth, safe installation and proper alignment in the rack. Following these steps is crucial for the stability of the PowerScale Gen6 system during operation.

Question #4

Dell EMC Technical Support has requested a part to be sent directly back to Dell Logistics to be studied.

Which process or document needs to be completed prior to sending the part back?

A . WWF
B . CDMR
C . DMR
D . WWFA

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Richtige Antwort: D
D

Explanation:

When Dell EMC Technical Support requests that a part be sent back directly to Dell Logistics for further analysis, a specific process must be followed to ensure proper handling and documentation.

Required Process:

Complete the WWFA (Worldwide Field Analysis) Form:

The WWFA is a document that needs to be filled out before returning parts that require detailed analysis.

It provides information about the failure, circumstances, and any relevant data that can assist in the investigation.

Why Option D is Correct:

WWFA (Worldwide Field Analysis):

The correct form required in this scenario.

Ensures that the returned part is properly tracked and analyzed by Dell EMC.

Why Other Options Are Incorrect:

Option A (WWF):

Likely a typographical error or incorrect abbreviation.

Option B (CDMR):

Refers to a Customer Declared Material Return, not applicable here.

Option C (DMR):

Stands for Defective Material Return, a general process but may not include the necessary details for analysis.

Dell PowerScale

Reference: Dell EMC Support Policies:

Return Material Authorization (RMA) Procedures:

Outline the process for returning parts.

Specify when a WWFA is required.

Communication with Support:

Support Request:

Dell EMC Technical Support will inform you if a WWFA is needed.

They will provide instructions on how to complete and submit the form.

Documentation:

The WWFA form typically includes:

Part number and serial number.

Description of the issue.

Environmental conditions.

Any troubleshooting steps taken.

Best Practices:

Accurate Information:

Provide detailed and accurate information to aid in the analysis.

Timely Submission:

Complete the WWFA promptly to avoid delays.

Packaging and Shipping:

Follow any packaging instructions to prevent further damage. Use the shipping labels provided by Dell EMC if applicable. Benefits of Completing the WWFA: Improved Support:

Helps Dell EMC identify root causes and prevent future issues.

Warranty Compliance:

Ensures that the return is processed under the terms of the warranty or support agreement.

Feedback Loop:

Provides valuable feedback to Dell EMC for product improvements.

Question #5

When testing connectivity to the Dell EMC PowerScale cluster through the Web Administration interface, what should be typed in the address line of the browser?

A . https://<clustername>:8080
B . http://<clustername>:80
C . http://<clustername>:8082
D . https://<clustername>:8081

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Question #6

Which document was replaced by the PEQ?

A . Site Preparation and Planning Guide
B . Web Administration Guide
C . Supportability and Compatibility Guide
D . Configuration Guide

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Question #7

Which statement is accurate regarding Dell EMC PowerScale hardware platforms?

A . Gen 6 node hardware comes only in 4U rack-mountable chassis.
B . Gen 6.5 F200 nodes come in 4U rack-mountable chassis.
C . Gen 6 node hardware comes in 2U or 4U rack-mountable chassis.
D . Gen 6.5 F600 nodes can only be added as node pairs.

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Question #8

An engineer replaced a failed node in a PowerScale H500 due to hardware issues. They must verity that the replacement node is functioning correctly.

What is a crucial step when replacing the failed node in the cluster?

A . Run a diagnostic test on the replacement node.
B . Confirm that the replacement node inherits the old serial number from the cluster.
C . Verify the size of the storage capacity of the replacement node.
D . Power on the replacement node and ensure it connects to the network without any problems.

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Richtige Antwort: A
A

Explanation:

After replacing a failed node in a PowerScale H500 cluster, it is crucial to run a diagnostic test on the replacement node to ensure it is functioning correctly and can integrate seamlessly into the cluster.

Importance of Diagnostics:

Verify Hardware Functionality:

Ensures all components of the replacement node are working properly.

Identify Potential Issues:

Detects any hardware faults or configuration problems before the node joins the cluster.

Diagnostic Procedures:

Boot Diagnostics:

During startup, the node performs POST (Power-On Self-Test).

OneFS Healthcheck:

Use the isi diagnostics commands to run health checks on the node.

Cluster Integration Tests:

Verify network connectivity, storage availability, and cluster communication.

Steps to Run Diagnostics:

Physical Inspection:

Ensure all cables and components are properly connected.

Power On the Node:

Observe for any error lights or beep codes.

Execute Diagnostic Commands:

Run isi_hw_status to check hardware status.

Use isi_diag tools for comprehensive testing.

Review Logs:

Check system logs for any error messages.

Why Other Options Are Less Crucial:

B. Confirm that the replacement node inherits the old serial number from the cluster:

Serial numbers are hardware-specific and cannot be inherited.

Nodes have unique serial numbers; cluster identity is managed logically.

C. Verify the size of the storage capacity of the replacement node:

While important, it’s generally assumed that the replacement node matches the failed node’s specifications.

Not as crucial as ensuring the node functions correctly.

D. Power on the replacement node and ensure it connects to the network without any problems:

Necessary, but this is part of the diagnostic process.

Running diagnostics encompasses powering on and verifying network connectivity.

Dell PowerScale

Reference: Dell EMC PowerScale OneFS Administration Guide:

Provides information on monitoring and diagnostics commands.

Node Replacement Procedures in SolVe Online:

Outline the steps for replacing nodes and the importance of running diagnostics.

Best Practices for Cluster Maintenance:

Emphasize verifying node health before adding it to the cluster.

Question #9

A platform engineer is at a customer site to replace a failed Dell EMC PowerScale Gen 6 node. After removing the compute module, they observe lit LEDs inside the removed node.

What is the recommended response?

A . This is not normal; they need to shut down the partner node.
B . There is an internal electrical fault; they should call support.
C . The node is not yet completely shut down; they should wait.
D . This is normal; they should continue with the procedure.

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Question #9

A platform engineer is at a customer site to replace a failed Dell EMC PowerScale Gen 6 node. After removing the compute module, they observe lit LEDs inside the removed node.

What is the recommended response?

A . This is not normal; they need to shut down the partner node.
B . There is an internal electrical fault; they should call support.
C . The node is not yet completely shut down; they should wait.
D . This is normal; they should continue with the procedure.

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