2026 Provide Updated EMC D-MSS-DS-23 Dumps as Practice Test and PDF
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EMC D-MSS-DS-23 Exam Syllabus Topics:
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NEW QUESTION # 19
Which two workload parameters are required to proceed with sizing for a PowerStore solution?
(Select 2)
- A. Data reduction ratio
- B. Response time
- C. Effective Capacity
- D. IOPS
Answer: C,D
Explanation:
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 # 20
What is a consequence of using a 1.6 TB drive and five 400 GB drives in a Dell EMC Unity XT dynamic pool?
- A. Unisphere short strokes the 1.6 TB drive to 8 extents
- B. Extents 9 - 19 are used to create the RAID Group
- C. Extents 9 - 19 are marked unavailable until more 1.6 TB drives are added
- D. Extents 9 - 19 are marked unavailable and can never be recovered
Answer: C
Explanation:
Reference: https://www.delltechnologies.com/asset/en-us/products/storage/industry- market/h16289-dell_emc_unity-dynamic_pools.pdf
NEW QUESTION # 21
Which path of the sizer tool for Dell Unity XT uses predefined configurations that are based on array model, capacity points, random workloads, RAID type, and drive type?
- A. Simple Performance
- B. Quick Configuration
- C. Advanced Performance
- D. System Designer
Answer: B
Explanation:
Sizer Tool Paths:
The Dell Unity XT sizer tool offers multiple paths for configuring storage solutions, each tailored to different user needs and expertise levels.
Quick Configuration:
The Quick Configuration path uses predefined configurations based on array model, capacity points, random workloads, RAID type, and drive type.
This path simplifies the sizing process by providing users with recommended configurations that align with common use cases and performance requirements.
NEW QUESTION # 22
A storage administrator wants to do a tech refresh from a legacy EQL system to a new Dell EMC SC Series array.
What is needed to correctly size the new array?
- A. Contract support end date
- B. Latency
- C. Peak IOPS information
- D. Storage tiers
Answer: B
NEW QUESTION # 23
Which file resources are supported with Dell EMC Unity asynchronous replication?
- A. NAS servers and NFS datastores
- B. LUNs and VMFS datastores
- C. Consistency Groups and file systems
- D. File systems and LUNs
Answer: A
Explanation:
Reference: https://www.delltechnologies.com/en-us/documentation/unity-family/unity-p- replication-config/02-unity-rep-br-workflow.htm
NEW QUESTION # 24
Which describes the Dell Unity XT MetroSync replication topology?
- A. A source file resource replicating synchronously from Site A to Site B and replicating synchronously from Site A to SiteC
- B. A source block resource replicating synchronously from Site A to Site B and replicating asynchronously from Site A to Site C
- C. A source file resource replicating synchronously from Site A to Site B and replicating asynchronously from Site A to Site C
- D. A source block resource replicating synchronously from Site A to Site B and replicating synchronously from Site A to Site C
Answer: A
Explanation:
Dell Unity XT MetroSync replication topology is a multi-site replication solution that allows you to replicate data synchronously between two or more Unity XT systems. In this topology, a source file resource is replicated synchronously from Site A to Site B, and also replicated synchronously from Site A to Site C; This means that data is written to the primary site and immediately replicated to the secondary site, ensuring that both sites have an exact copy of the data at all times. This type of topology is useful in cases where data loss is not acceptable and a zero RPO is needed. This topology ensures that the data is fully protected and that the environment is highly available, as in case of a primary site failure, the secondary site can take over.
NEW QUESTION # 25
A user is storing data on the quota tree on a Dell PowerStore system. What can an administrator use to limit the amount of storage that the user consumes?
- A. A bandwidth throttle quota
- B. A NAS server quota
- C. User quota on the tree quota
- D. A second tree quota
Answer: C
Explanation:
An administrator can use a user quota to limit the amount of storage that the user consumes on a Dell PowerStore system. A user quota is a limit that is set on the quota tree, which is a hierarchical structure that organizes storage resources and sets limits on how much storage can be used at each level. The user quota is applied to a specific user or group of users and limits the amount of storage that can be consumed by that user or group of users.
NEW QUESTION # 26
A PowerStore solution must support hosts using 100 Gb/s Eth connectivity and hosts using 16 Gb/s connectily How should the I/O Modules be populated according to Dell Best Practices?
- A. 100Gb/s Eth I/O Module in Slot 1 and 16Gb/s FC I/O Module in Slot 0
- B. 100Gb/s Eth I/O Module in Slot0 and 16Gb/s FC I/O Module in Slot 1
- C. 100 Gb/s Eth and 16Gb/s FC I/O Modules can be placed into any slot
Answer: B
NEW QUESTION # 27
Which sizer option supports configuration of a Midrange solution with hybrid dynamic pools?
- A. Simple Performance
- B. Quick Configuration
- C. Advanced Performance
- D. System Designer
Answer: B
Explanation:
The "Quick Configuration" sizer option supports the configuration of a midrange solution with hybrid dynamic pools. This option allows for a streamlined setup process, making it easier to configure storage pools that combine both SSDs and HDDs for optimized performance and capacity.
NEW QUESTION # 28
Which two statements are correct for a PowerStore 5200T with mixed SSD and SCM drive combination? (Select 2)
- A. SSD drives are used for metadata tiering.
- B. Expansion Enclosures are supported.
- C. SCM drives do not add to usable capacity.
- D. NVMe drives are not used for Caching and Vaulting.
Answer: B,C
Explanation:
For a PowerStore 5200T system with a mixed SSD and SCM (Storage Class Memory) drive combination, the following statements are correct:
Expansion Enclosures are supported: PowerStore 5200T supports expansion enclosures, allowing for the addition of more drives to increase storage capacity and performance. This flexibility is crucial for scaling the storage system to meet growing data requirements.
SCM drives do not add to usable capacity: SCM drives in the PowerStore 5200T are primarily used for caching purposes rather than for adding to the system's usable capacity. These drives improve performance by accelerating data access times but do not contribute directly to the overall storage capacity.
NEW QUESTION # 29
Which describes cascade replication on the Dell Unity XT platform?
- A. Synchronous replication of a file resource from Sites A to B, then B to C, then C to D
- B. Asynchronous replication of a block resource from Sites A to B, then B to C, then C to D
- C. Synchronous replication of a block resource from Sites A to B, then B to C, then C to D
- D. Asynchronous replication of a file resource from Sites A to B, then B to C, then C to D
Answer: B
Explanation:
Cascade replication on the Dell Unity XT platform describes the process where a block resource is replicated asynchronously from one site to another in a sequential manner. Here's how it works:
* Site A to Site B:The block resource is first replicated asynchronously from Site A to Site B.
* Site B to Site C:After the replication from A to B is complete, the resource is then replicated from Site B to Site C.
* Site C to Site D:Finally, the resource is replicated from Site C to Site D.
This cascade replication method allows for efficient data protection and disaster recovery across multiple sites.
References:
* Dell Technologies Unity XT Replication Guide
* Dell Entry-Level and Mid-Range Storage Community
NEW QUESTION # 30
You are designing a Dell EMC PowerStore solution with a customer. They ask if they can populate Slots 0 to 10 with NVMe SSD drives.
What should be your response?
- A. Any drive type can be populated in the remaining slots
- B. NVMe SCM drives are required in Slots 0 through 10
- C. NVMe SSDs must be populated in the remaining empty slots
- D. NVMe SCM drives must be populated in the remaining empty slots
Answer: C
Explanation:
Reference: https://www.dell.com/support/manuals/en-pk/powerstore/pwrstr-hwg/base-enclosure- component-overview?guid=guid-7914a554-6943-402e-bd38-3e893163657e&lang=en-us
NEW QUESTION # 31
Which path of the size tool for Dell Unity XT uses predefined configurations that are based on array model capacity points, random workloads RAID type and drive type?
- A. Simple Performance
- B. Quick Configuration
- C. Advanced Performance
- D. System Designer
Answer: B
NEW QUESTION # 32
What is a consequence of using an 800 GB drive and five 400 GB drives in a Dell EMC Unity XT dynamic pool?
- A. Unisphere short strokes the 800 GB drive to 8 extents
- B. Extents 9 - 14 are used to create a RAID Group
- C. Extents 9 - 14 are marked unavailable and can never be recovered
- D. Extents 9 - 14 are marked unavailable until more 800 GB drives are added
Answer: D
NEW QUESTION # 33
Which two attributes characterize I/O workloads for sizing the PowerStore storage solution?
(Select
2)
- A. Random vs. Sequential I/O
- B. Splitting of Workloads
- C. CloudIQ Reporting
- D. Extent of Serialization
- E. Read vs. Write ratios
Answer: E
Explanation:
Two key attributes that characterize I/O workloads for sizing the PowerStore storage solution are Random vs. Sequential I/O and Read vs. Write ratios. Understanding these attributes helps in accurately sizing the storage system to meet performance and capacity requirements.
NEW QUESTION # 34
Which two workload parameters are required to proceed with sizing for a PowerStore solution?
(Select 2)
- A. Data reduction ratio
- B. Response time
- C. Effective Capacity
- D. IOPS
Answer: C,D
Explanation:
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 # 35
A company has a Dell Unity XT 880 at its Boston site providing file storage for a business production application. The company has a second remote site 8 km (5 mi) away in Cambridge. A third site is in New York (342 km (213 mi) from the Boston site). How can the same production data be protected against system outage with a zero RPO and a maximum of 15 minutes RPO data recovery?
- A. Asynchronous replicate from Boston to Cambridge Asynchronous replicate from Cambridge to New York
- B. Synchronous replicate from Boston to Cambridge Asynchronous replicate from Boston to New York
- C. Synchronous replicate from Boston to Cambridge Synchronous replicate from Cambridge to New York
- D. Synchronous replicate from Boston to Cambridge Synchronous replicate from Boston to New York
Answer: B
Explanation:
Dell Unity XT offers both synchronous and asynchronous replication to protect data and ensure business continuity.
Synchronous replication is used for zero RPO, ensuring no data loss, but it is typically limited to shorter distances due to latency concerns.
Asynchronous replication is suitable for longer distances and provides near real-time data protection with a minimal RPO.
Distance Considerations:
The distance between Boston and Cambridge (8 km) is suitable for synchronous replication, providing zero RPO.
The distance between Boston and New York (342 km) is better suited for asynchronous replication due to latency, ensuring data recovery with a minimal RPO, such as 15 minutes.
Optimal Replication Strategy:
Synchronous replication from Boston to Cambridge ensures zero RPO for critical data protection.
Asynchronous replication from Boston to New York provides additional data protection with a 15- minute RPO, suitable for longer-distance disaster recovery.
NEW QUESTION # 36
Which model supports the AppsON feature?
- A. PowerStore T
- B. PowerStore X
- C. Unity VSA
- D. Unity XT
Answer: B
NEW QUESTION # 37
Which options are valid Mezzanine card choices on a Dell PowerStore in a multi-appliance cluster?
- A. Mixed 2-port 32 Gb FC and 2-port 25 GbE card
- B. Mixed 2-port 25 GbE SFP and 2-port 10GBaseT card
- C. 4-port 25 GbE SFP-based card or 4-port 10GBaseT card
- D. 4-port 16 Gb FC card or 4-port 32 Gb FC card
Answer: C
NEW QUESTION # 38
A customer has a Dell EMC SC9000 array with six SC420 enclosures running SCOS 7.3.
The enclosure configuration is as follows:
Two enclosures have write-intensive SSDs
Four enclosures have read-intensive SSDs
What is recommended as a general guideline for making spare drive assignments?
- A. 2 spare drives per shell
- B. 2 spares per drive type per array
- C. Dedicated spares are not required
- D. 1 spare per drive type per shell
Answer: C
Explanation:
"SCOS 7.3, Distributed Sparing: eliminates the need for dedicated spares by giving customers the option to distribute sparing capacity across all drives in the array."
NEW QUESTION # 39
Which backend port are required to expand the PowerStore x200 models to have NVMe Expansions?
- A. 100 GbE 2-port Mezz card
- B. 25 GbE 4-Port Mezz Card
- C. 32 Gb FC I/O Module
Answer: B
Explanation:
To expand the PowerStore x200 models with NVMe expansions, the required backend port is the 25 GbE
4-Port Mezz Card. This card provides the necessary connectivity and bandwidth to support NVMe expansions, ensuring high-speed data transfer and low latency, which are critical for NVMe performance. Reference:Dell PowerStore Expansion Guide
NEW QUESTION # 40
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 (4+1) protection to match the production pool. The used tier contains only SAS Flash 3 drives. What is the minimum drive count necessary to create this pool?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
Explanation:
* Dynamic Pool Configuration with RAID 5:
* RAID 5 (4+1) protection involves 4 data drives and 1 parity drive.
* Minimum Drive Count:
* For creating a dynamic pool with RAID 5 (4+1), the configuration must include at least 2 RAID 5 (4+1) groups to ensure redundancy and performance.
* The minimum drive count for this setup would be 2 * (4 + 1) + 1 (hot spare) = 11 drives.
* RAID 5 Requirements:
* This configuration ensures that the dynamic pool has enough drives to maintain performance and data protection according to Dell's best practices.
* Dell Midrange Storage References:
* Dell Unity XT documentation provides detailed guidelines on RAID configurations and the minimum drive requirements for dynamic pools.
* Community forums and support resources from Dell Technologies offer insights into best practices for configuring RAID and dynamic pools.
References:
* Dell Unity XT RAID Configuration Guide
* Dell Community on Storage Configurations
NEW QUESTION # 41
A systems administrator has deployed a DellUnity XT 380F with 90x 1.92 TB SSDs in a dynamic pool How many drives are allocated as spare space?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
Explanation:
The Dell Unity XT 380F has a default spare space allocation of 4% of the total number of drives in a dynamic pool. So with 90x 1.92 TB SSDs, 4 drives will be allocated as spare space. These spare drives are used to automatically replace a failed drive, ensuring data availability and protection.
NEW QUESTION # 42
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