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EMC D-MSS-DS-23 Exam Syllabus Topics:
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NEW QUESTION # 11
What is a benefit of using a performance assessment tool?
- A. Retrieves workload metrics from all storage systems
- B. Retrieves the performance archives using the Unity Data Collection
- C. Provides performance statistics in a structured postgres database
- D. Provides automated performance statistics in chart and table format
Answer: D
Explanation:
A performance assessment tool is used to evaluate the performance of storage systems and provide statistics that can be used to identify and troubleshoot performance issues. One of the benefits of using a performance assessment tool is that it provides automated performance statistics in chart and table format, making it easy to understand performance metrics and identify any potential issues. This allows the user to quickly identify and address any bottlenecks in the system, and make adjustments to improve performance.
NEW QUESTION # 12
A customer has three Dell PowerStore 1000Ts in a cluster and wants to add a PowerStore 5000X. What must they do?
- A. Reconfigure the existing cluster.
- B. Use the PowerStore CLI to add the appliance.
- C. Create a cluster with the 5000X.
- D. Use the PowerStore Manager to add the appliance.
Answer: C
Explanation:
* PowerStore Clustering:
* PowerStore appliances can be clustered to form a single management entity. However, adding different models within the same cluster follows specific guidelines.
* Cluster Compatibility:
* PowerStore 1000T and 5000X are different models with potentially different hardware configurations and capabilities.
* Dell recommends creating a new cluster with the PowerStore 5000X instead of mixing models within an existing cluster to ensure compatibility and optimal performance.
* Adding Appliances:
* Using the PowerStore CLI or PowerStore Manager to add appliances within the same model range is common, but mixing models generally requires creating a separate cluster.
* Dell Midrange Storage References:
* Dell PowerStore documentation provides guidelines on clustering and appliance management, highlighting the importance of model compatibility.
References:
* Dell PowerStore Clustering Guide
* Dell Community on PowerStore Clusters
NEW QUESTION # 13
An architect is designing a cost-effective PowerStore solution in sizer that is expected to perform in the event of a node failure without impacting the max performance. What must be considered?
- A. Provide a higher model than the sizer-recommended solution.
- B. Set Max Performance Saturation to 50% while sizing.
- C. Plan and design a disaster recovery site.
- D. Set Performance Growth to 50% while sizing.
Answer: B
Explanation:
* Designing for Node Failure:
* Ensuring a PowerStore solution performs optimally even in the event of a node failure requires careful consideration of performance thresholds.
* Max Performance Saturation:
* Setting the Max Performance Saturation to 50% during the sizing process ensures that in the event of a node failure, the remaining node can handle the load without performance degradation.
* This conservative approach allows the system to operate within safe performance limits, maintaining high availability and performance.
* Other Options:
* Disaster Recovery Site: Important for overall business continuity but does not directly address performance during a node failure within the same site.
* Performance Growth: Setting Performance Growth to 50% focuses on future growth rather than immediate redundancy considerations.
* Higher Model: While providing a higher model can offer more resources, it is not as cost-effective as optimizing the performance saturation setting.
* Dell Midrange Storage References:
* Dell PowerStore documentation provides detailed guidelines on performance optimization and high availability configurations.
* Community forums and support resources from Dell Technologies offer insights into best practices for sizing and redundancy.
References:
* Dell PowerStore Performance Guide
NEW QUESTION # 14
A solution architect is sizing a new Dell Unity XT array that requires hybrid dynamic pools. Which option must be selected in Midrange Sizer?
- A. Advanced Performance
- B. Application Oriented
- C. Quick Configuration
- D. System Designer
Answer: C
Explanation:
When sizing a new Dell Unity XT array that requires hybrid dynamic pools, the "Quick Configuration" option must be selected in the Midrange Sizer. This option streamlines the configuration process, allowing for a balanced and efficient setup of hybrid pools. Here's why Quick Configuration is used:
Simplifies Setup: Quick Configuration provides a straightforward approach to setting up the array, ensuring that the necessary parameters for hybrid dynamic pools are configured correctly without requiring in-depth manual input.
Balanced Performance: The tool uses predefined settings and best practices to create a hybrid pool that balances performance and capacity, making it ideal for a variety of workloads.
NEW QUESTION # 15
How many expansion enclosures can be added to a Dell PowerStore 1000T that has 10 SCM drives in the base enclosure?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
Explanation:
Dell PowerStore 1000T supports the addition of a maximum of one expansion enclosure when it has 10 SCM drives in the base enclosure. An expansion enclosure can be added to the base enclosure and allows the system to support additional drives and increase storage capacity.
NEW QUESTION # 16
Which two statements are correct in reference to an NVMe Expansion Enclosure attached to a PowerStore? (Select 2)
- A. Slots for 25 2.5-inch NVMe drives
- B. Not supported on systems that include SAS expansion enclosures
- C. Supports the use of NVMe SCM Drives
- D. Requires v2 embedded module in base enclosure
Answer: A,C
Explanation:
The NVMe Expansion Enclosure attached to a PowerStore system includes slots for 25 2.5-inch NVMe drives and supports the use of NVMe Storage Class Memory (SCM) drives. These features allow for high-performance storage expansion with low latency and improved efficiency.
NEW QUESTION # 17
Which two options are minimum requirements for PowerSizer Block workloads? (Select 2)
- A. Split Workload
- B. Performance Growth
- C. Performance
- D. Capacity Growth
- E. Effective Capacity
Answer: C,D
Explanation:
The minimum requirements for PowerSizer Block workloads include Capacity Growth and Performance. These parameters are essential to ensure that the PowerSizer tool can accurately size and configure the storage system to meet the anticipated data growth and performance demands of the workload.
NEW QUESTION # 18
What benefit do higher capacity drives provide in a Dell Unity All Flash array?
- A. Efficient utilization of front end ports
- B. Less physical space is used
- C. Larger I/O size
Answer: B
NEW QUESTION # 19
Which tool can be used to migrate file data for Windows hosts form a legacy VNX array to a new Dell Unity XT array?
- A. Robocopy
- B. rsync
- C. SANCopy
Answer: B
NEW QUESTION # 20
A technical architect is helping a customer prepare for a data center maintenance window All applications must failover to the disaster recovery site. The customer also wants to test their disaster recovery plan What PowerStore Manager replication option should be used to address the customer's need:
and from which site should the option be run?
- A. Failover from target site
- B. Planned failover from source site
- C. Planned failover from target site
- D. Failover from source site
Answer: B
Explanation:
In this scenario, the customer wants to test their disaster recovery plan and wants all applications to failover to the disaster recovery site. To accomplish this, the technical architect should use the planned failover option from the source site, the primary site. This will allow the customer to test their disaster recovery plan and ensure that all applications can be successfully failed over to the disaster recovery site. It's important to note that if the customer wants to failover to the disaster recovery site for maintenance and after that fail back to the primary site, the planned failover should be run from the target site.
NEW QUESTION # 21
Which two drive types are supported by the Dell PowerStore Expansion Enclosure? (Select 2)
- A. NVMe SSD
- B. SAS SSD
- C. SATA SSD
- D. NVMe SCM
Answer: A,B
NEW QUESTION # 22
A Dell Unity XT 480F system ships with two embedded modules, one for each SP.
What does the embedded module provide?
- A. Management
- B. Field service only
- C. CNA connectivity
- D. A Fiber Channel connectivity
Answer: A
Explanation:
The embedded module in a Dell Unity XT 480F system provides management functionality for the system, such as control of the storage array, monitoring of system health and performance, and management of storage resources. This embedded module allows you to manage the system through an intuitive web-based interface or via command-line interface.
NEW QUESTION # 23
What is a key feature of the Dell EMC Future-Proof Storage Loyalty Program for Dell EMC SC Series arrays?
- A. 4:1 Reduction Guarantee
- B. 4:1 Performance Guarantee
- C. 4 Year Satisfaction Guarantee
- D. 4:1 Efficiency Guarantee
Answer: D
Explanation:
Dell EMC Flash Storage Efficiency Guarantee Dell EMC promises our flash arrays will provide a logical usable capacity at least four times the usable physical capacity of your purchased drives -- or we'll give you more drives at no charge.
https://www.delltechnologies.com/en-us/blog/dell-emc-flash-storage-efficiency/ Reference:
https://www.dell.com/pk/business/p/storage-sc-all-flash/pd
NEW QUESTION # 24
A PowerStore solution must support hosts using 100 Gb/s Eth connectivity and hosts using 16 Gb/s FC connectivity. How should the I/O Modules be populated according to Dell Best Practices?
- A. 100 Gb/s Eth I/O Module in Slot 1 and 16 Gb/s FC I/O Module in Slot 0
- B. 100 Gb/s Eth and 16 Gb/s FC I/O Modules can be placed into any Slot
- C. 100 Gb/s Eth I/O Module in Slot 0 and 16 Gb/s FC I/O Module in Slot 1
Answer: C
Explanation:
According to Dell best practices for PowerStore solutions, when supporting hosts that use both 100 Gb/s Ethernet (Eth) connectivity and 16 Gb/s Fibre Channel (FC) connectivity, the I/O modules should be populated as follows:
* Slot 0:Install the 100 Gb/s Ethernet I/O module. This ensures that the high-speed Ethernet connections are handled by the first slot, which is typically prioritized for network connectivity.
* Slot 1:Install the 16 Gb/s Fibre Channel I/O module. This setup leverages the capabilities of the second slot to manage Fibre Channel traffic efficiently.
This configuration ensures optimal performance and adherence to best practices, providing a balanced distribution of network and storage connectivity within the PowerStore system.
References:
* Dell Technologies PowerStore Documentation
* Dell Entry-Level and Mid-Range Storage Community
* Dell Storage Products Overview
NEW QUESTION # 25
What is recommended maximum cable length for PowerStore back-end NVMe cabling to avoid performance issues?
- A. 3 meters
- B. 100 meters
- C. 5 meters
- D. 10 meters
Answer: D
NEW QUESTION # 26
What is a consideration when sizing a Dell EMC SC Series system for capacity?
- A. Page size
- B. RAID overhead
- C. IOPS
- D. Read/Write ratio
Answer: B
Explanation:
(Input/Output Operations Per Second) is a key consideration when sizing a Dell EMC SC Series system for capacity. IOPS is a measure of the performance of a storage system, and a higher number of IOPS generally indicates better performance. Other factors to consider would be the number of disk drives, RAID configuration, and storage capacity required for the specific use case.
NEW QUESTION # 27
Which feature helps to enable file service High Availability on Dell EMC PowerStore?
- A. NAS Network Heartbeat
- B. Multiple redundant network ports with system bond
- C. Redundant nodes with Live Volume enabled
- D. RAID protected disk drives
Answer: A
Explanation:
Reference: https://www.delltechnologies.com/resources/en-us/asset/white- papers/products/storage/h18157-dell-emc-powerstore-clustering-high-availability.pdf
NEW QUESTION # 28
Which model supports the AppsON feature?
- A. PowerStore T
- B. Unity XT
- C. PowerStore X
- D. Unity VSA
Answer: C
NEW QUESTION # 29
What is the minimum number of IP addresses for optimal performance of PowerStoreX?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
Explanation:
The minimum number of IP addresses for optimal performance of PowerStoreX is 6. These IP addresses are required for management, replication, and data path operations, ensuring efficient and reliable system performance.
NEW QUESTION # 30
When a remove replication operation is performed on a Dell EMC PowerStore array, what happens to the destination storage resource?
- A. Stays in read-only mode
- B. Taken offline
- C. Is deleted
- D. Stays in read/write mode
Answer: A
Explanation:
"Removing a replication session is initiated on the source system by removing the protection policy from the Volume or Volume Group on the source system. Removing the protection policy from a storage resource results in the following: *. The destination storage resource stays in read- only mode."
NEW QUESTION # 31
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