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EMC D-MSS-DS-23 Exam Syllabus Topics:
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NEW QUESTION # 74
What chunk size of data is identified and moved temporarily to FAST Cache within Unity?
- A. 64 KB
- B. 128 KB
- C. 32 KB
- D. 256 KB
Answer: B
Explanation:
* 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 # 75
What is the minimum RPO that can be configured on a Dell Unity XT block-asynchronous replication session?
- A. 20 minutes
- B. 5 minutes
- C. 1 minute
- D. 60 minutes
Answer: B
Explanation:
Recovery Point ObjectiveWhen you set up an asynchronous replication session, you can configureautomatic synchronization based on the RPO. You can specify an RPO from a minimum of 5 minutes up to a maximum of 1440 minutes (24 htours).
NEW QUESTION # 76
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. Latency
- B. Peak IOPS information
- C. Contract support end date
- D. Storage tiers
Answer: A
NEW QUESTION # 77
What is a benefit of using a performance assessment tool?
- A. Retrieves workload metrics from all storage systems
- B. Provides performance statistics in a structured postgres database
- C. Retrieves the performance archives using the Unity Data Collection
- 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 # 78
Which model supports the AppsON feature?
- A. Unity XT
- B. PowerStore T
- C. Unity VSA
- D. PowerStore X
Answer: D
NEW QUESTION # 79
Which two options are input parameters for Unity Designer? (Select 2)
- A. Drive Modules
- B. Host Access Modes
- C. NAS Server Nodes
- D. Block and File resources
- E. Enclosures
Answer: A
Explanation:
Unity Designer is a tool used to design and configure Dell EMC Unity storage systems. Two of the key input parameters for Unity Designer are Block and File resources, which include configuring LUNs, NAS servers, and file systems, and Drive Modules, which refer to the physical drives and their configurations within the storage system.
NEW QUESTION # 80
What provides data analytics for Dell EMC Midrange storage?
- A. DSM
- B. CloudIQ
- C. eLab Advisor
- D. Unisphere Central
Answer: B
Explanation:
Reference: https://advance.biz-tech-insights.com/whitepaper/h15387-cloudiq-top-reasons.pdf
NEW QUESTION # 81
A customer has a mixed environment consisting of Dell Unity 350F Dell Unity XT 680F. and Dell PowerStore 5000X They want to have a single interface to monitor and report on all the arrays.
Which software tool should the technical architect recommend?
- A. Unisphere Central
- B. PowerStore Manager
- C. CloudlQ
- D. Unisphere Analyzer
Answer: A
Explanation:
Unisphere Central is the recommended software tool for the customer as it allows for the monitoring and reporting of multiple Dell Unity and Dell PowerStore arrays through a single interface. It provides a unified management experience and allows for efficient monitoring and troubleshooting of the storage environment.
NEW QUESTION # 82
How are SAS ports used by Dell Unity XT storage processors?
- A. To provide host connectivity.
- B. To move data to and from the backend drives.
- C. To increase processing speed.
- D. To move data between the data array.
Answer: B
Explanation:
In Dell Unity XT storage processors, SAS (Serial Attached SCSI) ports are used to move data to and from the backend drives. SAS ports provide a high-speed and reliable connection between the storage processors and the physical drives, ensuring efficient data transfer and access. This connectivity is crucial for maintaining the performance and scalability of the storage system. Reference:Dell Unity XT Architecture
NEW QUESTION # 83
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?
- A. Create a volume group of the snapshot.
- B. Create a read/write snapshot of the snapshot
- C. Create a thin clone of the snapshot
- D. Create a copy of the snapshot
Answer: C
Explanation:
"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 # 84
A customer has two Dell S4148FON switches which are not connected to each other. The customer wants to use SMB to present NAS data directly from the array to their users. The solution must have resilience in case a switch outage occurs Which solution should the technical architect recommend?
- A. Dell PowerStore 1000T
- B. Dell PowerStore100X
- C. Dell PowerVault ME4
- D. Dell Unity XT 480
Answer: D
NEW QUESTION # 85
Which option should the technical architect recommend?
- A. The Dell Unity XT 480 supports a 25 GbE card, but the Dell Unity 550F does not support a 25 GbE card.
- B. 25 GbE is not supported on Dell Unity or Dell Unity XT systems.
- C. The Dell Unity 550F supports a 25 GbE card, but the Dell Unity XT 480 does not support a 25 GbE card.
- D. All Dell Unity and Dell Unity XT systems support 25 GbE.
Answer: A
NEW QUESTION # 86
Which Dell EMC Midrange solution is configured for block storage with a built-in hypervisor?
- A. Unity XT
- B. SC 9000
- C. PowerStore T
- D. PowerStore X
Answer: D
Explanation:
The PowerStore X model configuration provides a hypervisor layer in addition to block storage.
Reference: https://www.dell.com/support/manuals/en-pk/powerstore-9000/pwrstr- v12n/virtualization-architecture-and-configuration?guid=guid-cd3afd8a-aaba-43f5-b80c- c14b844b50b8&lang=en-us
NEW QUESTION # 87
What does the Storage Performance Saturation field show in the Configurations tab of the PowerStore sizing tool in a Multi-Appliance solution?
- A. Aggregate of all workloads
- B. Aggregate of all capacity
- C. Maximum Performance
- D. Maximum usable capacity
Answer: A
Explanation:
* Understanding Storage Performance Saturation:
* In the Configurations tab of the PowerStore sizing tool, the Storage Performance Saturation field provides crucial information about the overall performance demand placed on the storage solution.
* Multi-Appliance Solution Context:
* When working with a multi-appliance PowerStore solution, it is important to assess the combined performance demands of all workloads across the appliances.
* Aggregate of All Workloads:
* The Storage Performance Saturation field shows the aggregate performance demand of all workloads combined. This helps in determining if the current configuration can handle the cumulative IOPS and throughput requirements or if additional resources are needed.
* Dell Midrange Storage References:
* Dell Technologies documentation on PowerStore and its sizing tools provide detailed guidelines on how to interpret and utilize performance metrics, including the Storage Performance Saturation field.
References:
* Dell PowerStore Sizing Guide
* Dell Community on PowerStore Configurations
NEW QUESTION # 88
Which Dell EMC Unity feature provides network high availability with active-passive ports when provisioning File storage for a NAS client?
- A. Link Aggregation
- B. Fail-safe Networking
- C. Preferred Interfaces
- D. Redundant Interfaces
Answer: B
Explanation:
Document: docu71319_dell-emc-unity-high-availability-a-detailed-review.pdf Page: 20 FAIL SAFE NETWORKING (FSN) Dell EMC Unity OE version 4.2.1 introduces Fail Safe Networking (FSN).
FSN is a high availability feature that extends link failover into the network by providing switch- level redundancy. FSN appears as a single link with a single MAC address and potentially multiple IP addresses. FSN can consists of Ethernet ports, link aggregations, or any combination of the two. FSN adds an extra layer of availability to link aggregations alone as link aggregations provide availability in the event of a port failure while FSN provides availability in the event of a switch failure. Each port or Link aggregation is considered as a single connection and only the primary port or link aggregation in an FSN is active at a time. All ports in an FSN must have the same MTU size, but the speed and duplex settings can vary.
NEW QUESTION # 89
You are adding a Linux host running Oracle to a Dell Unity XT Hybrid array. The customer requires the Oracle application to have low I/O latency and be deployed on available 10K SAS or NL-SAS drives. Which Dell Unity XT feature would meet the customer requirements?
- A. FAST Cache
- B. Quotas
- C. Dynamic pools
- D. FAST VP
Answer: D
NEW QUESTION # 90
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