DELL EMC D-PSC-MN-01 Dell PowerScale Maintenance Online Training

Question #31

Which port slot provides management functionality on a PowerScale F600?

A . PCle slot 3
B . PCle slot 1
C . rNDCstot
D . PCle slot 2

Correct Answer: C
C

Explanation:

On a Dell PowerScale F600 node, the rNDC slot (redundant Network Daughter Card slot) provides management functionality. The rNDC slot hosts the network interface used for node management tasks, including cluster administration and monitoring.

Understanding the F600 Node Architecture:

All-Flash Storage:

The F600 is an all-flash node designed for high performance.

Network Connectivity:

Equipped with various network interface options for data and management traffic.

Role of the rNDC Slot:

Management Port Location:

The rNDC slot houses the management network interfaces.

Dedicated Management Functionality:

Separates management traffic from data traffic to enhance security and performance.

Redundancy Features:

Provides failover capabilities to ensure continuous management access.

Why PCIe Slots Are Less Suitable:

PCIe Slot 1, 2, and 3:

Typically used for data network interfaces or additional hardware components.

Not designated for primary management interfaces.

Management Interface Specificity:

Management ports are specifically assigned to the rNDC slot to standardize configurations across nodes.

Benefits of Using the rNDC Slot for Management:

Simplified Network Design:

Clear separation of management and data networks.

Enhanced Security:

Management interfaces can be placed on a secure network segment.

Consistency Across Clusters:

Facilitates easier administration and support.

Physical Identification:

Location on the Node:

The rNDC slot is located on the back of the F600 node and is typically labeled for easy identification.

Port Types:

May include Ethernet ports designated for management tasks.

Dell PowerScale

Reference: Dell EMC PowerScale F600 Hardware Overview:

Details the node’s hardware components, including the rNDC slot.

Dell EMC PowerScale Networking Guide:

Discusses network configurations and the role of management interfaces.

Hardware Installation Manuals:

Provide diagrams and instructions that identify the rNDC slot as the management port location.

Question #32

DRAG DROP

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

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Correct Answer:

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 #33

Exhibit.

A platform engineer has connected power cables to a Dell PowerScale Gen6 node.

What does the status indicator indicate?

A . Not functioning
B . Cold and redundant
C . Mismatch of voltage or component firmware
D . On and healthy

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Question #34

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.

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Correct Answer: 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 #35

What type of drive should a customer use to ensure that their data is encrypted?

A . NVMe
B . SSD
C . SED
D . Hard drive

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Question #36

What can be viewed using the isi_upgrade_logs _s command?

A . Post upgrade errors
B . Current upgrade state
C . Active upgrade errors
D . Upgrade assessment results

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Question #37

What is an important consideration when connecting Dell PowerScale Gen6 nodes to external power?

A . Cable each node in a node pair to a different PDU.
B . Cable all nodes to the external power feeds before connecting switch power cables.
C . The total power load for all nodes in the rack should not exceed 100% of the branch circuit rating.
D . Connect both cables of each node to different external power feeds.

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Question #38

Which three F200 components can a customer replace?

A . System Battery
B . Network Interface Card
C . CPU module
D . DIMM
E . NVDIMM Battery

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Question #39

A customer is planning to expand a Dell PowerScale Gen5 cluster with H500 nodes What is a consideration?

A . A minimum of three H500 chassis are needed.
B . All new nodes must be on the network.
C . A minimum of four H500 nodes are needed.
D . A minimum of one H500 chassis is needed.

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Correct Answer: D
D

Explanation:

When expanding a Dell PowerScale Gen5 cluster with H500 nodes (which are Gen6 nodes), a key consideration is that a minimum of one H500 chassis is needed, which contains four H500 nodes.

Understanding Dell PowerScale Node Generations:

Gen5 Cluster:

Existing cluster with Gen5 nodes.

H500 Nodes:

Part of the Gen6 family, which introduces a new hardware architecture and chassis design.

Gen6 Chassis and Node Configuration:

Chassis Design:

Gen6 nodes like the H500 are installed in a chassis that holds four nodes. The chassis is the physical enclosure that houses and powers the nodes. Minimum Node Addition:

You cannot add individual Gen6 nodes to a cluster; you must add at least one full chassis. Therefore, the minimum number of H500 nodes you can add is four, as part of a single chassis. Considerations When Expanding with H500 Nodes: Compatibility:

OneFS allows mixing Gen5 and Gen6 nodes in the same cluster, but certain considerations apply.

Network Connectivity:

New nodes must be properly connected to the cluster’s internal network.

Chassis Requirements:

A minimum of one H500 chassis (containing four nodes) is required for expansion.

Why Option D is Correct:

Option D:

"A minimum of one H500 chassis is needed."

This accurately reflects the requirement to add at least one chassis (four nodes) when expanding the cluster.

Why Other Options Are Less Suitable:

Option A:

"A minimum of three H500 chassis are needed."

This would require adding 12 nodes, which is not the minimum requirement.

Option B:

"All new nodes must be on the network."

While it’s true that nodes must be networked, this is a standard practice and not a specific

consideration in this context.

Option C:

"A minimum of four H500 nodes are needed."

While technically correct in terms of node count, the key consideration is the chassis requirement,

making Option D more precise.

Dell PowerScale

Reference: Dell EMC PowerScale OneFS Node and Chassis Overview:

Describes the architecture of Gen6 nodes and chassis requirements.

Dell EMC PowerScale OneFS Administration Guide:

Provides guidelines on expanding clusters and adding new nodes.

Knowledge Base Articles:

Article ID 000114567: "Expanding Gen5 Clusters with Gen6 Nodes"

Article ID 000114568: "Understanding Gen6 Chassis and Node Requirements"

Question #40

An engineer wants to create a 4-node cluster after rack and stack.

What port must they use to start the installation?

A . COM
B . FE
C . BE
D . iDRAC

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Correct Answer: D
D

Explanation:

When an engineer wants to create a 4-node cluster after rack and stack, they must use the iDRAC (Integrated Dell Remote Access Controller) port to start the installation.

Understanding iDRAC:

Remote Management:

iDRAC provides out-of-band management capabilities, allowing administrators to manage and

monitor nodes remotely.

Virtual Console Access:

Offers a virtual console for accessing the node’s BIOS and performing installations.

Initial Cluster Setup with iDRAC:

Accessing the Node:

Connect to each node’s iDRAC interface using its IP address.

Starting the Installation:

Use the iDRAC virtual console to interact with the node as if you were physically present.

Benefits:

No need for physical access to the COM port or direct console connections.

Allows for remote configuration and reduces the time required for setup.

Why iDRAC is Used Over Other Ports:

COM Port:

The COM (serial) port can be used for initial setup, but it requires physical access and serial cables.

Less convenient compared to iDRAC’s remote capabilities.

FE (Front-End) and BE (Back-End) Ports:

FE and BE ports are used for data network connections, not for initial setup or management.

The initial configuration cannot be performed through these ports.

Procedure for Using iDRAC:

Step 1: Connect to iDRAC

Ensure that iDRAC network interfaces are connected and configured with IP addresses.

Access iDRAC via a web browser using the IP address.

Step 2: Launch Virtual Console

Log in to the iDRAC interface.

Launch the virtual console to access the node’s system interface.

Step 3: Perform Initial Configuration

Use the virtual console to run the OneFS installation wizard. Configure cluster settings, networking, and other parameters. Dell PowerScale Best Practices: Using iDRAC for Installation:

Recommended for its convenience and efficiency.

Allows for consistent setup procedures across multiple nodes.

Network Preparation:

Ensure iDRAC interfaces are properly connected to the management network.

Verify network settings to allow access from the engineer’s workstation.

Dell PowerScale

Reference: Dell EMC PowerScale OneFS Installation Guide:

Provides detailed steps on installing OneFS using iDRAC.

Dell EMC PowerScale Networking Guide:

Discusses management network configurations, including iDRAC setup.

Dell EMC iDRAC User’s Guide:

Offers comprehensive information on using iDRAC features.

Knowledge Base Articles:

Article ID 000125678: "Initial Cluster Configuration Using iDRAC"

Article ID 000125679: "Best Practices for Remote Installation on PowerScale Nodes"