EMC D-MSS-DS-23 Study Guide Archives Updated on Feb 07, 2025
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NEW QUESTION # 112
How many fans in a Dell EMC PowerStore node can fail before it shuts down?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
Explanation:
A node can tolerate a single fan module fault, and the surviving fans increase their speed to compensate for the faulted module. If two fan modules fault within the same node, the node performs a protective thermal shutdown. A protective thermal shutdown gracefully powers off the node, and any resource fails over to the surviving node Reference: https://www.delltechnologies.com/asset/en-us/products/storage/industry- market/h18149-dell-emc-powerstore-platform-introduction.pdf
NEW QUESTION # 113
Which tool delivers frequent, dynamic, nondisruptive content updates for a user?
- A. Live Optics
- B. My Work
- C. CloudIQ
- D. Environment Collection Tool
Answer: C
Explanation:
CloudIQ is a cloud-based application that provides frequent, dynamic, and nondisruptive content updates to users. It offers proactive monitoring, predictive analytics, and detailed health scores for Dell storage environments, including PowerStore and Unity systems. CloudIQ helps users maintain optimal system performance by delivering real-time insights and alerts about potential issues before they impact operations.
Here's how CloudIQ benefits users:
* Frequent Updates:CloudIQ continuously gathers and analyzes data from connected systems, providing up-to-date information and insights.
* Dynamic Content:The tool dynamically adapts to changing conditions in the storage environment, offering relevant recommendations and updates.
* Nondisruptive:All updates and insights provided by CloudIQ are nondisruptive, ensuring that there is no interruption to the system's operations.
References:
* Dell Technologies CloudIQ Overview
* Dell Entry-Level and Mid-Range Storage Community
NEW QUESTION # 114
What is a non-uniform distribution of I/O over storage capacity in Dell Unity XT Systems?
- A. Skew
- B. Response time
- C. Throughput
- D. Latency
Answer: A
NEW QUESTION # 115
Which CPU family is used on a Dell Unity XT 480?
- A. Skylake
- B. Haswell
- C. Ice Lake
- D. Broadwell
Answer: D
Explanation:
The Dell Unity XT 480 storage system uses the Broadwell CPU family. Broadwell processors are known for their efficiency and performance, making them suitable for storage systems like the Unity XT 480 that require reliable processing power for managing storage tasks.
NEW QUESTION # 116
Where in PowerSizer can a solution architect find guidance for choosing the appropriate storage solution?
- A. Recent Projects
- B. Sizing and Build Tools
- C. Quick Size
- D. Support
Answer: B
NEW QUESTION # 117
What initiates an automatic NAS server failover to the peer SP?
- A. Network link failure
- B. SP hardware fault
- C. Assisted internal migration
- D. Resource balancing algorithm
Answer: B
Explanation:
An automatic NAS server failover to the peer Storage Processor (SP) is initiated by an SP hardware fault. This failover mechanism ensures high availability and continuous access to data by moving the NAS server's operations to the functioning SP when a hardware fault is detected in the primary SP.
NEW QUESTION # 118
Based on best practices, what should be the first step when designing a new Dell Unity XT solution?
- A. Gather impl.bin configuration file
- B. Run netstat on the host
- C. Meet customer and obtain Live Optics report, if applicable
- D. Calculate the aggregate performance of all hardware
Answer: C
NEW QUESTION # 119
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 Synchronous replicate from Cambridge to New York
- C. Synchronous replicate from Boston to Cambridge Synchronous replicate from Boston to New York
- D. Synchronous replicate from Boston to Cambridge Asynchronous replicate from Boston to New York
Answer: D
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.
* Dell Midrange Storage References:
* Dell Unity XT documentation and best practices provide detailed guidelines on configuring synchronous and asynchronous replication.
* Community forums and support resources from Dell Technologies offer insights into real-world implementation strategies.
References:
* Dell Unity XT Replication Guide
* Dell Community on Data Protection
NEW QUESTION # 120
What command is used to gather data from Cisco switches?
- A. show tech-support details
- B. show all
- C. supportshow
Answer: A
NEW QUESTION # 121
Which describes cascade replication on a Dell Unity XT?
- A. Asynchronous replication of a block resource from Sites A to B then B to C then C to D
- B. Synchronous replication of a file resource from Sites A to B. then B to C then C to D
- C. Asynchronous replication of a file resource from Sites A to B then B to C. then C to D
- D. Synchronous replication of a block resource from Sites A to B. then B to C. then C to D
Answer: C
Explanation:
Cascade replication refers to the replication of data from one site to another, in a sequential or cascading manner. In the case of Dell Unity XT, cascade replication refers to the asynchronous replication of a file resource from one site (site A) to another (site B), then from site B to another site (site C) and so on. This means that data is replicated from one site to another in an orderly fashion, and each site functions as both a source and a target for replication. This allows for multiple copies of the data to be kept in different locations, providing increased data availability and disaster recovery capabilities. It's important to note that cascade replication can also be used for block resources but is usually asynchronous.
NEW QUESTION # 122
What is the recommended number of IP addresses for optimal performance of PowerStoreX?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION # 123
A technical architect is designing a Dell Unity storage solution. The customer has a monthly data access profile where block data is accessed infrequently. The data is accessed frequently for a few days during month-end reporting.
Based on best practices which solution should the technical architect recommend?
- A. A single-tier solution using 10k drives
- B. A hybrid solution using FAST VP and FAST Cache
- C. A hybrid solution using data progression
- D. An All-Flash solution using FAST VP and FAST Cache
Answer: B
Explanation:
Based on the customer's monthly data access profile, where block data is accessed infrequently but frequently during month-end reporting, the technical architect should recommend a hybrid solution using FAST VP and FAST Cache. FAST VP (Fully Automated Storage Tiering for Virtual Pools) is a feature that automatically tiers data across different types of storage media based on access patterns. With FAST VP, frequently accessed data will be automatically moved to faster storage media such as flash, while infrequently accessed data will be moved to slower, less expensive storage media such as disk. FAST Cache is a feature that increases the performance of Unity storage systems by caching frequently accessed data on flash storage. With this hybrid solution, the customer will have the best of both worlds:
high-performance flash storage for frequently accessed data, and lower-cost disk storage for infrequently accessed data. This will help the customer to improve performance during month-end reporting and save costs for infrequently accessed data. It's important to note that this design should be evaluated based on the specific requirements, workloads and expected growth of the customer.
NEW QUESTION # 124
In a Dell Unity XT system, SSD wear alerts are issued at 180-, 90-, 60-, and 30-day periods before the predicted end of life. What is automatically initiated on the spare drive at 30 days?
- A. Predictive Copy Operations
- B. Protective Copy Operations
- C. Preemptive Copy Operations
- D. Proactive Copy Operations
Answer: D
NEW QUESTION # 125
Which features were introduced in SCOS 7.3?
- A. Data-in-Place upgrade for SC4020 and 4K HDD support
- B. Unisphere for SC and Live Volume Auto-failover
- C. Distributed Sparing and Live Volume ALUA
- D. CloudlQ support and Cross Platform Replication
Answer: A
NEW QUESTION # 126
Which tool can be used to migrate file data for Windows hosts from a legacy VNX array to a new Dell Unity XT array?
- A. Rsync
- B. SANCopy
- C. Robocopy
Answer: C
Explanation:
* File Data Migration Tools:
* Migrating file data from legacy systems to new arrays requires reliable tools that can handle large volumes of data efficiently.
* Robocopy for Windows Hosts:
* Robocopy (Robust File Copy) is a powerful command-line tool in Windows that supports extensive options for copying and synchronizing files and directories.
* It is well-suited for migrating file data from a legacy VNX array to a new Dell Unity XT array, ensuring data integrity and consistency.
* Other Tools:
* SANCopy: Used for SAN data migration and not specific to file data.
* Rsync: Commonly used for Linux/Unix systems rather than Windows hosts.
* Dell Midrange Storage References:
* Dell Unity XT documentation and migration guides provide detailed instructions on using Robocopy for file data migration.
* Community forums and support resources from Dell Technologies offer additional insights and best practices.
References:
* Dell Unity XT Migration Guide
* Dell Community on Data Migration
NEW QUESTION # 127
Which low-latency workload type is a best practice for an all-SCM Dell PowerStore array?
- A. Small block workloads
- B. Large block workloads
- C. Backup workloads
- D. Media streaming workloads
Answer: A
NEW QUESTION # 128
Which two options allow the collection of telemetry files when evaluating an existing Dell Unity XT system configuration? (select 2)
- A. PSTCLI
- B. unity_service_data collects
- C. unity_telemetry_data collects
- D. UEMCLI
Answer: B,D
NEW QUESTION # 129
What are all the capabilities of a Dell Unity XT hybrid system that optimize for workload skew?
- A. HDDs and FAST Cache
- B. FAST Cache, Cache, and HDDs
- C. FAST VP and Cache
- D. Cache, FAST Cache, and FAST VP
Answer: D
NEW QUESTION # 130
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