[Feb-2026] D-MSS-DS-23 Dumps are Available for Instant Access from ActualCollection [Q49-Q65]

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[Feb-2026] D-MSS-DS-23 Dumps are Available for Instant Access from ActualCollection

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EMC D-MSS-DS-23 Exam Syllabus Topics:

Topic	Details
Topic 1	Dell Midrange Storage Solutions Planning, Sizing, and Design: This section of the exam measures the skills of storage engineers and covers the planning, sizing, and design phases of a Midrange solution sales engagement. It emphasizes conducting site evaluations and remediation processes while considering performance parameters and environmental limits. A critical skill evaluated is accurately characterizing workloads to inform design decisions.
Topic 2	Dell Midrange Sizing Solutions: This section of the exam measures the skills of storage engineers and covers the use of tools like the Midrange Sizer for Unity to size solutions effectively. It includes design methods and deliverables associated with sizing storage solutions.
Topic 3	Midrange Storage Solutions Best Practice: This section of the exam measures the skills of Dell Unity and PowerStore Midrange Storage Solutions professionals and covers best practice recommendations for system configuration and upgrades. It includes guidelines on hardware capacity, deployment models, clustering, and operating system upgrades. A key skill assessed is implementing effective backend connectivity solutions that enhance system performance.

NEW QUESTION 49
Which two workload parameters are required to proceed with sizing for a PowerStore solution?
(Select 2)

Response time

IOPS

Effective Capacity

Data reduction ratio

Sizing for PowerStore Solutions:
Accurate sizing for PowerStore solutions requires specific workload parameters to ensure that the storage system meets performance and capacity requirements.
Required Parameters:
IOPS (Input/Output Operations Per Second): A key performance metric indicating the number of read/write operations the system must handle. Essential for determining the required performance capability.
Effective Capacity: The usable storage capacity after considering data reduction technologies like compression and deduplication. Critical for ensuring the system can accommodate the data volume.

NEW QUESTION 50
What are the two biggest factors that determine IOPS when using SSDs in a Dell EMC SC Series array?

Current latency and queue depth

Application block size and overall throughput

Multi-tenant arrays and tier configuration

Read/write percentage and peak workload

The reason there is such a large range in the number of IOPS delivered by SSDs is the IOPS are truly dependent on the type of traffic the SC Series was designed to handle. The two biggest factors that will determine IOPS in an SSD environment are block size of the application and overall throughput. Reference: https://downloads.dell.com/manuals/common/sc-series- performance-availability-best-practices-dell-emc-4024-bp-sc_en-us.pdf

NEW QUESTION 51
What is the maximum supported drive configuration in the base enclosure of the PowerStore
3200T?

23xNVMe SCMs 2 x NVMe NVRAM

21 x NVMe SSDs 2 x NVMe NVRAM

23 x NVMe SSDs 2 x NVMe NVRAM

21 x NVMe SCMs 4 x NVMe NVRAM

The maximum supported drive configuration in the base enclosure of the PowerStore 3200T includes 23 NVMe SSDs and 2 NVMe NVRAM. This configuration provides high performance and low latency, suitable for demanding workloads.

NEW QUESTION 52
For Dell EMC SC Series arrays, what is the minimum percentage of total system IOPS that should be applied to Tier 3 drives?

15%

20%

25%

100%

“As a standard, tier 3 drives should encompass a minimum of 20% system IOPS potential.”

NEW QUESTION 53
A Dell Unity XT hybrid flash array system is configured with FAST Cache to optimize data access for OLTP workloads.
What level of data granularity is tracked and promoted to the secondary cache?

8KB

256KB

64 KB

128 KB

NEW QUESTION 54
What storage resources are affected with a refresh option on a Dell EMC PowerStore array?

Thin clones and volumes only

Snapshots, thin clones, and volumes

Thin clones, volumes, and replicas

Thin clones and snapshots only

NEW QUESTION 55
Which file resources are supported with Dell EMC Unity asynchronous replication?

File systems and LUNs

LUNs and VMFS datastores

NAS servers and NFS datastores

Consistency Groups and file systems

Reference: https://www.delltechnologies.com/en-us/documentation/unity-family/unity-p- replication-config/02-unity-rep-br-workflow.htm

NEW QUESTION 56
What are two guidelines for optimal performance when planning and sizing a Midrange storage solution?
(Select 2)

Maximize Flash Drive Capacity

Maximize NVMe NVRAM Capacity

Consolidate Workloads

Design for Resilience

When planning and sizing a Midrange storage solution, two key guidelines for optimal performance are to consolidate workloads and design for resilience. Consolidating workloads helps in maximizing the utilization of storage resources, reducing overhead, and improving performance. Designing for resilience ensures that the storage solution can handle failures and continue to operate effectively, maintaining data availability and performance. These practices are critical for achieving reliable and efficient storage solutions. Reference:Dell Midrange Storage Planning Guide

NEW QUESTION 57
You are upgrading a Dell EMC Unity array to a Dell EMC PowerStore 1000 T array. The customer asks what they need to do so they can map PowerStore snapshots from the new PowerStore array to a host.
What should be your response?

Create a volume group of the snapshot.

Create a read/write snapshot of the snapshot

Create a copy of the snapshot

Create a thin clone of the snapshot

“Volume and Volume Group Snapshots: Snapshots cannot be mapped to a host. To view the contents of a snapshot, you must first clone the snapshot then map the clone to a host.”

NEW QUESTION 58
What are two guidelines for optimal performance when planning and sizing a Midrange storage solution? (Select 2)

Maximize Flash Drive Capacity

Maximize NVMe NVRAM Capacity

Consolidate Workloads

Design for Resilience

NEW QUESTION 59
A customer must provision file systems on a Dell Unity XT 480F for a test environment A dynamic pool will be configured with RAID 5……
What is the minimum drive count necessary to create to create this pool?

NEW QUESTION 60
What command is used to gather data from Brocade switches?

show all

show tech-support details

supportshow

The commandsupportshowis 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 thesupportshowcommand:
* Access the Brocade Switch:Connect to the Brocade switch via SSH or through a console connection.
* Enter the Command:Typesupportshowin 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.
References:
* Dell Technologies PowerStore Documentation
* Dell Entry-Level and Mid-Range Storage Community
* Dell Storage Products Overview

NEW QUESTION 61
What chunk size of data is identified and moved temporarily to FAST Cache within Unity?

256 KB

32 KB

128 KB

64 KB

* FAST Cache Mechanism:
* FAST (Fully Automated Storage Tiering) Cache in Dell Unity systems temporarily holds frequently accessed data to improve read and write performance.
* The data moved to FAST Cache is managed in chunks to optimize storage efficiency and performance.
* Chunk Size for FAST Cache:
* Dell Unity systems use a chunk size of 128 KB for data moved to FAST Cache. This size is optimized for balancing performance and storage management overhead.
* Smaller chunks, such as 32 KB or 64 KB, might increase management overhead, while larger chunks like 256 KB could reduce the granularity of data movement and efficiency.
* Dell Midrange Storage References:
* Dell Unity XT documentation provides detailed explanations on FAST Cache operations, including the specific chunk sizes used.
* Additional technical resources from Dell Technologies offer insights into performance tuning and cache management.
References:
* Dell Unity XT FAST Cache Guide
* Dell Community on Cache Management
* Dell Storage Product Information

NEW QUESTION 62
A solutions architect must present two different Dell PowerStore options to a customer Both options must contain 90 TB raw in the smallest drive configuration possible A 3000T and a 9000T are the two models requested. The customer wants to know the minimum drive count necessary to perform a capacity upgrade Which solution should be recommended?

A 6x 15 TB drives in the 3000T and 6x 15 TB drives in the 9000T both requiring upgrades in six drive increments

6x 15 TB drives in the 3000T and 12x 7 TB drives in the 9000T both supporting single drive upgrades

6x 15 TB drives in the 3000T and 6x 15 TB drives in the 9000T both supporting single drive upgrades

12x 7 TB drives in the 3000T and 6x 15 TB drives in the 9000T both requiring upgrades in six drive increments

This option provides the smallest drive configuration possible for both the 3000T and 9000T models, and allows for single drive upgrades, which is more flexible for the customer.

NEW QUESTION 63
Which methods are available to migrate storage resources from one Dell PowerStore appliance to another within the same cluster?

Assisted Migration and Live Migrate

Migrate and Assisted Migration

Assisted Migration and Volume Motion

Volume Motion and Live Migrate

The Dell PowerStore appliance provides two methods to migrate storage resources within the same cluster: Assisted Migration and Volume Motion.
Assisted Migration: This method allows the administrator to manually initiate and control the migration process, and it allows for the migration of individual resources such as LUNs, file systems and snapshots.
Volume Motion: This method allows the administrator to move a LUN or file system from one storage pool to another on the same PowerStore appliance or within the same cluster. This is done without any disruption to the hosts accessing the data and it can be automated with the use of policies. It’s important to note that the Live Migrate and Migrate options are not available to migrate storage resources within the same cluster in Dell PowerStore.

NEW QUESTION 64
A systems administrator is evaluating a new solution for the deployment of new applications. The solution must offer storage over iSCSI for 50 Hyper-V VMs and storage over SMB to use as a user-shared area. High performance is a requirement, so the administrator has decided on NVMe SSD as the media.
Which solution meets these requirements?

Dell PowerStore T deployed in unified mode

Dell Unity XT deployed in unified mode

Dell PowerStore T deployed in block-optimized mode

Dell PowerStore X deployed in unified mode

NEW QUESTION 65
While sizing a PowerStore solution with 5 TB usable capacity and 5000 IOPS for a Test/Development Application using NVMe drives,….
What action must the architect take?

Change the DRE Tolerance Parity in System Editor

Change the DRR of the solution

Configure the Unity solution as an alternative

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EMC D-MSS-DS-23 Exam Syllabus Topics:

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