D-VPX-DY-A-24 LATEST EXAM PASS4SURE | RELIABLE D-VPX-DY-A-24 TEST REVIEW

D-VPX-DY-A-24 Latest Exam Pass4sure | Reliable D-VPX-DY-A-24 Test Review

D-VPX-DY-A-24 Latest Exam Pass4sure | Reliable D-VPX-DY-A-24 Test Review

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EMC Dell VPLEX Deploy Achievement Sample Questions (Q57-Q62):

NEW QUESTION # 57
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. 11 ** /virtual volumes
  • B. storage-volume summary
  • C. show-use-hierarchy
  • D. 11 ** /storage-volumes

Answer: B

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 # 58
What is the purpose of issuing the batch-migrate check-plan command?

  • A. Verifies that the target devices have no virtual volumes configured
  • B. Determines if there is currently enough back-end bandwidth
  • C. Determines if the front-end IO rate is below the predetermined threshold
  • D. Verifies that the source devices are not in a storage view

Answer: A

Explanation:
The batch-migrate check-plan command in Dell VPLEX is used to verify that the target devices specified in a migration plan have no virtual volumes configured. This is a crucial step before initiating a batch migration to ensure that the target devices are ready to receive data from the source devices.
* Pre-Migration Verification: Before starting a batch migration, it is important to ensure that the target devices are properly prepared. This includes verifying that they are not already in use by another virtual volume1.
* Ensuring Data Integrity: By checking that no virtual volumes are configured on the target devices, the command helps prevent data corruption or overwriting of existing data1.
* Migration Plan: The migration plan contains details about the source and target devices for the
* migration. The check-plan command reviews this plan to confirm that the target devices meet the necessary criteria for migration1.
* Command Execution: The command is executed in the VPLEX CLI, and the output will indicate whether the target devices are ready for migration or if there are any issues that need to be resolved1.
* Post-Verification Actions: If the command finds that virtual volumes are configured on the target devices, the administrator must take appropriate actions to remove these configurations before proceeding with the migration1.
In summary, the purpose of issuing the batch-migrate check-plan command is to verify that the target devices specified in a migration plan have no virtual volumes configured, ensuring that they are ready for the data migration process.


NEW QUESTION # 59
Which performance statistics are collected as histograms and used to track latencies to display minimums and maximums?

  • A. Readings
  • B. Intervals
  • C. Counters
  • D. Buckets

Answer: D

Explanation:
In the context of performance monitoring, particularly for systems like Dell VPLEX, histograms are used to track latencies and display minimums, maximums, and other statistical data. 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 displayed1.
* 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 VPLEX1.
* 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, etc1.
* 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 between1.
* 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 range1.
* 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 workloads1.
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 # 60
LUNs are being provisioned from active/passive arrays to VPLEX. What is the path requirement for each VPLEX director when connecting to this type of array?

  • A. At least two paths to both the active and passive controllers of each array
  • B. At least two paths to both the active and non-preferred controllers of each array
  • C. At least two paths to every array and storage volume
  • D. At least four paths to every array and storage volume

Answer: A

Explanation:
When provisioning LUNs from active/passive arrays to VPLEX, it is essential that each VPLEX director has at least two paths to both the active and passive controllers of each array. This requirement ensures high availability and redundancy for the storage volumes being managed by VPLEX1.
* Active/Passive Arrays: Active/passive arrays have one controller actively serving I/O (active) and
* another on standby (passive). The VPLEX system must have paths to both controllers to maintain access to the LUNs in case the active controller fails1.
* Path Redundancy: Having at least two paths to both controllers from each VPLEX director provides redundancy. If one path fails, the other can continue to serve I/O, preventing disruption to the host applications1.
* VPLEX Configuration: In the VPLEX configuration, paths are zoned and masked to ensure that the VPLEX directors can access the LUNs on the storage arrays. Proper zoning and masking are critical for the paths to function correctly1.
* Failover Capability: The dual-path configuration allows VPLEX to perform an automatic failover to the passive controller if the active controller becomes unavailable, ensuring continuous data availability1.
* Best Practices: Following the path requirement as per Dell EMC's best practices ensures that the VPLEX system can provide the expected level of service and data protection for the provisioned LUNs1.
In summary, the path requirement for each VPLEX director when connecting to active/passive arrays is to have at least two paths to both the active and passive controllers of each array, providing the necessary redundancy and failover capabilities.


NEW QUESTION # 61
Refer to the exhibit.

A storage administrator is experiencing an unplanned site outage. After recovery of the network, they are still unable to access the management server.
Which port on the back of the management server can the administrator connect to with a hardcoded IP address to access the VPLEX cluster and troubleshoot the issue?

  • A. B
  • B. D
  • C. A
  • D. C

Answer: C

Explanation:
In the event of an unplanned site outage and subsequent recovery, if a storage administrator is unable to access the management server, they can connect to a specific port on the back of the management server with a hardcoded IP address to regain access to the VPLEX cluster and begin troubleshooting.
* Identify the Management Port: The management server typically has a dedicated port that can be used for direct access in case of network issues. This port is designed to accept a hardcoded IP address for such scenarios1.
* Connect to the Management Port: The administrator should use an Ethernet cable to connect a laptop or a computer directly to the management port, which is usually labeled and can be identified based on the server's hardware manual or documentation1.
* Configure the Hardcoded IP Address: On the connected device, the administrator needs to configure a static IP address that is in the same subnet as the management server's default IP range1.
* Access the VPLEX CLI: Once the connection is established, the administrator can use SSH or a similar protocol to access the VPLEX Command Line Interface (CLI) through the hardcoded IP address1.
* Troubleshoot the Issue: With access to the VPLEX CLI, the administrator can now run diagnostic commands, check the system status, and troubleshoot the connectivity issue1.
In this scenario, the correct port to connect to is labeled 'A' on the back of the management server. This port is reserved for such direct access and allows the administrator to bypass the network to troubleshoot and resolve the issue.


NEW QUESTION # 62
......

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