Free DELL EMC D-PSC-MN-01 Practice Exams - Page 2 of 6

Question #11

A Dell EMC PowerScale platform engineer is asked to reimage a node.

What should they check before they start the reimage process?

A . The treedelete job has been run against the node.
B . Customer has redundant paths to their data.
C . Node has been SmartFailed and removed from the cluster.
D . SyncIQ job has been run to copy the node data.

Reveal Solution Hide Solution

Question #12

A customer wants to add SSDs to the drive sleds in a Dell PowerScale H600 node for higher storage performance.

What should the platform engineer tell the customer?

A . Cache expansion requires a Dell Professional Services engagement.
B . Hybrid node SSDs in identical sled locations can be used for either cache or primary storage.
C . Only F series nodes can use SSDs for primary storage.
D . Each sled must have an equal number of SSDs.

Reveal Solution Hide Solution

Correct Answer: B
B

Explanation:

The platform engineer should inform the customer that hybrid node SSDs in identical sled locations can be used for either cache or primary storage.

Understanding Dell PowerScale H600 Nodes:

Hybrid Nodes:

H600 nodes are hybrid, combining HDDs for capacity and SSDs for performance.

Drive Sleds:

Nodes have sleds (drive bays) where drives are installed.

SSDs and HDDs are populated in specific sled locations.

Using SSDs for Cache or Primary Storage:

Flexibility:

SSDs in hybrid nodes can serve as either L3 cache or as a tier for primary storage.

Identical Sled Locations:

For consistency and performance optimization, SSDs should be installed in identical sled positions

across all nodes in the pool.

Configuration:

Administrators can configure the usage of SSDs through SmartPools and data storage policies.

Benefits of Using SSDs for Primary Storage:

Performance Improvement:

Storing hot or frequently accessed data on SSDs enhances read/write speeds.

Data Tiering:

OneFS can automatically move data between SSDs and HDDs based on access patterns.

Why Other Options Are Less Suitable:

Option A (Cache expansion requires a Dell Professional Services engagement):

While professional services can assist, customers can add SSDs and configure caching without mandatory professional services.

Option C (Only F series nodes can use SSDs for primary storage):

Incorrect; hybrid nodes can also use SSDs for primary storage via SmartPools.

Option D (Each sled must have an equal number of SSDs):

Not strictly required; however, best practices recommend balanced configurations for performance

consistency.

Best Practices:

Balanced Configuration:

Install SSDs uniformly across nodes to maintain consistent performance.

Consult Documentation:

Review hardware guides and configuration manuals for specific instructions.

Dell PowerScale

Reference: Dell EMC PowerScale OneFS SmartPools Administration Guide: Details on configuring SSDs for primary storage and caching. Dell EMC PowerScale OneFS SmartPools Guide Dell EMC PowerScale H600 Hardware Guide:

Provides information on drive sled configurations and SSD usage.

Dell EMC PowerScale H600 Hardware Guide

Knowledge Base Articles:

Article ID 000123010: "Using SSDs in Hybrid Nodes for Primary Storage"

Article ID 000123011: "Configuring SSDs in Dell PowerScale Hybrid Nodes"

Question #13

A platform engineer is installing a Dell EMC PowerScale cluster with 12 F200 nodes.

What is the correct ratio used for the breakout cable?

A . 1:2
B . 1:4
C . 1:8
D . 1:10

Reveal Solution Hide Solution

Question #14

What is the purpose of SolVe Desktop?

A . Gather logs from the cluster for analysis
B . Perform pre-upgrade checks on the cluster
C . Provide centralized access to step-by-step procedures
D . Provide access to the latest OneFS codes and firmware upgrades

Reveal Solution Hide Solution

Question #15

What should the platform engineer do to retain critical information when replacing a system board on a Dell EMC PowerScale F200 node?

A . Run isi_node_restore -force
B . Flash the BIOS
C . Reinstall the PowerScale license
D . Run EasyRestore

Reveal Solution Hide Solution

Question #15

What should the platform engineer do to retain critical information when replacing a system board on a Dell EMC PowerScale F200 node?

A . Run isi_node_restore -force
B . Flash the BIOS
C . Reinstall the PowerScale license
D . Run EasyRestore

Reveal Solution Hide Solution

Question #17

Which resource provides up-to-date instructions to service a Dell EMC PowerScale system?

A . Dell Quick Reference Guide
B . Dell Enterprise Configuration Services
C . Dell SolVe Online
D . Dell iDRAC Service Module

Reveal Solution Hide Solution

Question #18

DRAG DROP

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

Reveal Solution Hide Solution

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 #19

A customer has a Dell EMC PowerScale cluster. The IT manager asks a platform engineer if WORM directories can be overwritten.

A . Only compliance and secure SmartLock directories need to be reformatted.
B . Only enterprise SmartLock directories need to be reformatted.
C . Only enterprise and compliance SmartLock directories need to be reformatted.
D . Enterprise, compliance, and secure SmartLock directories need to be reformatted.

Reveal Solution Hide Solution

Question #20

A client plans to reconnect to a cluster automatically without Interruption.

Which two upgrade methods can be used to complete the upgrade while file service is still available to the client?

A . Parallel upgrades
B . Simultaneous upgrades
C . Rolling upgrades
D . Automated upgrades

Reveal Solution Hide Solution

Correct Answer: AC
AC

Explanation:

When a client plans to reconnect to a cluster automatically without interruption, they can use Parallel upgrades and Rolling upgrades to complete the upgrade while file services remain available.

Rolling Upgrades:

Definition:

A rolling upgrade updates one node at a time while the rest of the cluster continues to serve data.

Minimizes service disruption by ensuring that clients can continue accessing data during the

upgrade.

Process:

Nodes are sequentially taken out of service, upgraded, and then returned to the cluster. The OneFS operating system ensures data availability through redundant data paths. Benefits:

Provides high availability.

Ideal for environments where uptime is critical.

Reference: Dell EMC PowerScale OneFS Upgrade Planning and Process Guide, Section on Rolling Upgrades.

Parallel Upgrades:

Definition:

In a parallel upgrade, multiple nodes are upgraded simultaneously in groups.

Balances the need for reduced upgrade time with the requirement to keep services available.

Process:

The cluster is divided into groups, and each group is upgraded in parallel while others remain operational.

Care is taken to ensure that sufficient nodes are online to handle client requests.

Benefits:

Reduces total upgrade time compared to rolling upgrades.

Maintains file service availability to clients.

Reference: Dell EMC PowerScale OneFS Upgrade Planning and Process Guide, Section on Parallel Upgrades.

Why These Methods Allow for Client Reconnection Without Interruption:

Continuous Availability:

Both methods ensure that some nodes are always available to handle client requests.

Client Failover:

Clients automatically reconnect to available nodes if their current connection is interrupted due to a

node being upgraded.

Data Protection:

OneFS’s distributed file system and data protection mechanisms ensure data remains accessible.

Why Other Options Are Less Suitable:

B. Simultaneous upgrades:

Involves upgrading all nodes at the same time.

Would cause a complete service interruption, as no nodes would be available to serve data during the upgrade.

Not recommended for environments requiring continuous availability.

D. Automated upgrades:

While OneFS supports automated upgrade processes, automation alone doesn’t guarantee service availability.

The term "Automated upgrades" refers to the method of executing the upgrade, not how it impacts client access.

The upgrade method (rolling, parallel, simultaneous) determines service availability, regardless of automation.

Dell PowerScale

Reference: Dell EMC PowerScale OneFS Upgrade Planning and Process Guide:

Comprehensive guide on different upgrade methods and their impact on service availability. Dell EMC PowerScale OneFS Upgrade Guide

Dell EMC PowerScale OneFS Administration Guide:

Provides details on managing upgrades and client connectivity. Dell EMC PowerScale OneFS Administration Guide Knowledge Base Articles:

Article ID 000234567: "Understanding Rolling and Parallel Upgrades in OneFS"

Article ID 000234568: "Best Practices for Minimizing Service Disruption During Upgrades"