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EMC Dell VPLEX Deploy Achievement Sample Questions (Q35-Q40):

NEW QUESTION # 35
Which type of statistics is used to track latencies, determine median, mode, percentiles, minimums, and maximums?

A. Counters
B. Buckets
C. Readings
D. Monitors

Answer: B

Explanation:
In the context of performance monitoring, particularly for systems like Dell VPLEX, histograms are used to track latencies and display statistical data such as median, mode, percentiles, minimums, and maximums. The term "buckets" is often used to describe the segments within a histogram that categorize the latency data into ranges. Each bucket represents a range of latencies, and the number of events (or I/O operations) that fall into each latency range is counted and displayed.
* Histograms in Monitoring: Histograms provide a visual representation of how data is distributed across different ranges of values, which is particularly useful for understanding the performance characteristics of a system like VPLEX.
* Buckets Explained: Buckets within a histogram divide the entire range of collected data into discrete intervals. For latency tracking, these buckets might represent latency ranges such as 0-1 ms, 1-2 ms, etc.
* Latency Tracking: By collecting latency data in buckets, administrators can quickly identify the distribution of latencies over time, pinpointing whether most I/O operations are fast, slow, or somewhere in between.
* Minimums and Maximums: Histograms make it easy to see the minimum and maximum latencies experienced by the system, as well as the frequency of latencies within each bucket range.
* Performance Analysis: This method of collecting and analyzing performance statistics is crucial for performance tuning and capacity planning, as it helps administrators understand the behavior of their storage systems under different workloads.
In summary, "buckets" are the correct answer when referring to the segments within a histogram that are used to collect and categorize latency data for performance monitoring purposes in systems like Dell VPLEX.

NEW QUESTION # 36
A VPLEX Metro cluster is being installed for a company that is planning to create distributed volumes with
200 TB of storage. Based on this requirement, and consistent with
EMC best practices, what should be the minimum size for logging volumes at each cluster?

A. 20 GB
B. 16.5 GB
C. 10 GB
. 12.5 GB

Answer: C

Explanation:
When configuring a VPLEX Metro cluster, especially for a company planning to create distributed volumes with a large amount of storage like 200 TB, it is essential to adhere to EMC best practices for the size of logging volumes.
* Purpose of Logging Volumes: Logging volumes in VPLEX are used to store write logs that ensure data integrity and consistency across distributed volumes. These logs play a critical role during recovery processes1.
* Size Considerations: The size of the logging volumes should be proportional to the amount of active data being written to ensure that all write operations are captured in the logs. For 200 TB of distributed storage, a minimum size of 10 GB for each logging volume is recommended to handle the logging requirements1.
* Configuration: The logging volumes should be configured on each cluster to provide redundancy and high availability. This means that both clusters in a VPLEX Metro configuration should have logging volumes of at least the minimum recommended size1.
* Best Practices: EMC best practices suggest that the logging volume should be sized appropriately to support the operational workload and to ensure that there is sufficient space to capture all write operations without any loss of data1.
* Verification and Monitoring: After setting up the logging volumes, it is important to monitor their utilization to ensure they are functioning correctly and to adjust their size if necessary based on the actual workload1.
In summary, consistent with EMC best practices, the minimum size for logging volumes at each cluster in a VPLEX Metro cluster being installed for creating distributed volumes with 200 TB of storage should be 10 GB. This size ensures that the logging volumes can adequately support the write logging requirements for the amount of storage being used.

NEW QUESTION # 37
An administrator reports performance issues with a virtual volume that is presented through a VPLEX Local cluster. Which command can provide the underlying storage volume information?

A. storage-volume summary
B. 11 ** /storage-volumes
C. show-use-hierarchy
D. 11 ** /virtual volumes

Answer: A

Explanation:
The storage-volume summary command in VPLEX is used to provide a summary of the storage volumes, including their operational status and health state. This command can be particularly useful when an administrator needs to troubleshoot performance issues with a virtual volume presented through a VPLEX Local cluster.
* Command Usage: The storage-volume summary command is executed in the VPLEX CLI (Command Line Interface). It provides a high-level overview of the storage volumes, including their I/O status, operational status, and health state1.
* Performance Troubleshooting: When performance issues are reported, it's important to check the underlying storage volumes for any signs of degradation or operational problems that could be impacting the virtual volume's performance1.
* Health State Information: The command's output includes the health state of the storage volumes, which can indicate if there are any degraded volumes or other issues that need to be addressed1.
* Operational Status: The operational status provided by the command helps determine if the storage volumes are functioning correctly or if there are any issues that could be causing the reported performance problems1.
* Further Investigation: If the storage-volume summary command reveals any issues with the underlying storage volumes, further investigation and corrective actions may be necessary to resolve the performance issues1.
In summary, the storage-volume summary command is the appropriate command to provide the underlying storage volume information when troubleshooting performance issues with a virtual volume in a VPLEX Local cluster.

NEW QUESTION # 38

Which number in the exhibit highlights the Director-B front-end ports?

A. 0
B. 1
C. 2
D. 3

Answer: C

Explanation:
In a VPLEX system, each director module has front-end (FE) and back-end (BE) ports for connectivity. The FE ports are used to connect to hosts or out-of-fabric services such as management networks. Based on standard configurations and assuming that Director-A and Director-B are mirrored in layout, the number that highlights the Director-B front-end ports is typically 21.
* Director Modules: VPLEX systems consist of director modules, each containing ports designated for specific functions. Director-B is one of these modules1.
* Front-End Ports: The front-end ports on Director-B are used for host connectivity and are essential for the operation of the VPLEX system1.
* Port Identification: During the installation and setup of a VPLEX system, correctly identifying and utilizing the FE ports is crucial. This includes connecting the VPLEX to the host environment and ensuring proper communication between the storage system and the hosts1.
* Documentation Reference: For precise identification and configuration of the FE ports on Director-B, the Dell VPLEX Deploy Achievement documents provide detailed instructions and diagrams1.
* Best Practices: It is recommended to follow the guidelines provided in the Dell VPLEX documentation for port identification and installation utilities to ensure correct setup and configuration of the VPLEX system1.
In summary, the number 2 in the exhibit corresponds to the Director-B front-end ports in a Dell VPLEX system, which are critical for host connectivity and system operation.

NEW QUESTION # 39
What condition would prevent volume expansion?

A. Rebuild currently occurring on the volume
B. Logging volume in re-synchronization state
C. Volume not belonging to a consistency group
D. Metadata volume being backed up

Answer: A

Explanation:
In the context of Dell VPLEX, a rebuild occurring on a volume is a condition that would prevent the expansion of that volume. This is because the system needs to ensure data integrity and consistency during the rebuild process before any changes to the volume size can be made.
* Rebuild Process: A rebuild is a process where VPLEX re-synchronizes the data across the storage volumes, typically after a disk replacement or a failure1.
* Volume Expansion: Expanding a volume involves increasing its size to accommodate more data. This process requires that the volume is in a stable state without any ongoing rebuild operations1.
* Data Integrity: During a rebuild, the system is focused on restoring the correct data across the storage volumes. Attempting to expand a volume during this process could lead to data corruption or loss1.
* System Restrictions: VPLEX systems have built-in mechanisms to prevent administrators from performing actions that could jeopardize the system's stability or data integrity, such as expanding a volume during a rebuild1.
* Post-Rebuild Expansion: Once the rebuild process is complete and the volume is fully synchronized, the administrator can then proceed with the volume expansion1.
In summary, a rebuild currently occurring on a volume is a condition that would prevent the expansion of that volume in a Dell VPLEX system. The system must first ensure that the rebuild process is completed successfully before allowing any changes to the volume's size.

NEW QUESTION # 40
......

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EMC D-VPX-DY-A-24 Accurate Answers, Valid D-VPX-DY-A-24 Test Topics

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EMC Dell VPLEX Deploy Achievement Sample Questions (Q35-Q40):

Cost-Effective EMC D-VPX-DY-A-24 Exam [2025]

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