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EMC Dell VPLEX Operate Achievement Sample Questions (Q47-Q52):

NEW QUESTION # 47
What is the relationship between a storage volume and an extent?

A. A storage volume can be created out of multiple extents
B. An extent must map to an entire storage volume
C. A storage volume can be split into multiple extents
D. An extent can span multiple storage volumes

Answer: C

Explanation:
In VPLEX, a storage volume is a logical representation of physical storage, and it can be divided into multiple extents.An extent is a contiguous range of block addresses within a storage volume that VPLEX manages as a single unit1.
* Storage Volume: This is the physical storage presented to VPLEX from the backend storage arrays.It represents the total capacity available for use in VPLEX1.
* Extent: An extent is a subset of a storage volume.It is a logical division within a storage volume that VPLEX uses to create virtual volumes1.
* Division into Extents: A storage volume can be split into multiple extents, allowing for more granular management of storage resources.This is useful for creating multiple virtual volumes from a single storage volume1.
* Virtual Volume Creation: Extents are used by VPLEX to create virtual volumes.By splitting a storage volume into extents, VPLEX can combine extents from different storage volumes to create a virtual volume1.
* Management Flexibility: The ability to split a storage volume into multiple extents provides flexibility in storage management, enabling VPLEX to optimize storage utilization and performance1.
By splitting a storage volume into multiple extents, VPLEX can efficiently manage and allocate storage resources, creating virtual volumes that meet the specific needs of applications and workloads.

NEW QUESTION # 48
Which method of virtual volume expansion requires the volume to be expanded on the array first?

A. Storage volume
B. RAID-C expansion
C. Concatenation
D. Extent expansion

Answer: A

Explanation:
The method of virtual volume expansion that requires the volume to be expanded on the array first is the storage volume expansion methD.This method involves increasing the size of the physical storage volume on the array before expanding the virtual volume in VPLEX.
* Array Expansion: The first step is to expand the physical storage volume on the array.This is typically done through the array's management interface and involves adding more storage or extending the existing volume1.
* VPLEX Recognition: Once the storage volume is expanded on the array, VPLEX must recognize the new size of the volume.This may require a rescan or refresh within the VPLEX management interface1.
* Virtual Volume Expansion: After VPLEX recognizes the new size of the storage volume, the virtual volume can then be expanded to utilize the additional space.This is done within the VPLEX management interface, where the virtual volume is configured to include the additional capacity1.
* Storage Volume Method: The storage volume expansion method is distinct from other methods like concatenation, extent expansion, or RAID-C expansion, which involve different approaches to increasing virtual volume size within VPLEX itself1.
By expanding the storage volume on the array first, administrators can ensure that the additional capacity is available for use by VPLEX, allowing for the seamless expansion of virtual volumes to accommodate growing data needs.

NEW QUESTION # 49
What is a supported geometry for a VPLEX device?

A. RAID-5
B. 2-1 mapping
C. RAID-C
D. JBOD

Answer: C

Explanation:
A supported geometry for a VPLEX device is RAID-C, which stands for RAID Concatenation. RAID-C is a VPLEX-specific RAID configuration that concatenates multiple extents or devices to create a larger virtual volume.
* RAID Concatenation (RAID-C): RAID-C is a VPLEX geometry that allows for the concatenation of multiple storage extents or devices.This configuration is used to create larger virtual volumes by combining smaller ones1.
* Use of RAID-C: RAID-C is typically used when there is a need to expand storage capacity without the requirement for additional redundancy.It is a simple way to increase the size of a virtual volume by adding more storage to it1.
* Advantages: The advantage of using RAID-C is that it allows for flexibility in storage provisioning and can be easily expanded as storage needs grow.It also enables the use of storage from different arrays1.
* VPLEX Device Configuration: In the context of VPLEX, a device refers to a logical unit that can be presented to hosts.By using RAID-C geometry, VPLEX can present larger logical units that span across multiple physical storage arrays1.
* Supported Geometries: VPLEX supports various RAID geometries, including RAID-0, RAID-1, and RAID-C, each serving different purposes and providing different levels of performance and protection1.
By utilizing RAID-C geometry, VPLEX administrators can manage storage more effectively, ensuring that they can meet the capacity requirements of their applications and services.

NEW QUESTION # 50
What are characteristics of a storage view?

A. An initiator can only be in multiple storage view
VPLEX FE port can be in multiple storage views
Each initiator and FE port pair must be in different storage views
B. An initiator can be in multiple storage views
VPLEX FE port can only be in one storage view
Each initiator and FE port pair can only be in one storage view
C. An initiator can be in multiple storage views
VPLEX FE port can be in multiple storage views
Each initiator and FE port pair can only be in one storage view
D. An initiator can only be in one storage view
VPLEX FE port can be in multiple storage views
Each initiator and FE port pair can be in different storage views

Answer: C

Explanation:
A storage view in Dell VPLEX is a logical construct that defines the visibility and access relationships between hosts (initiators), storage (virtual volumes), and VPLEX front-end (FE) ports. Here's a detailed explanation of the characteristics:
* Initiator Multiplicity:An initiator, which is typically a host's HBA (Host Bus Adapter) port, can indeed be part of multiple storage views. This allows a single host to access different sets of virtual volumes through different storage views.
* VPLEX FE Port Multiplicity:VPLEX FE ports can also be included in multiple storage views. This design provides flexibility in connecting multiple hosts to various virtual volumes through shared FE ports.
* Initiator and FE Port Pairing:While both initiators and FE ports can exist in multiple storage views, each unique initiator and FE port pair can only be part of one storage view. This rule ensures that the path from a host to a virtual volume through a specific FE port is uniquely defined, preventing any ambiguity in the data access path.
References:
* The Dell VPLEX documentation outlines the concept of storage views and their characteristics, emphasizing the importance of properly configuring storage views to ensure correct visibility and access control between hosts and storage resources1.
* Best practices guides and technical whitepapers provided by Dell further explain how to configure storage views in VPLEX, detailing the relationships between initiators, FE ports, and virtual volumes1.
By understanding these characteristics, a VPLEX storage administrator can effectively manage access to storage resources, ensuring that hosts have the necessary visibility to the virtual volumes they require for their operations.

NEW QUESTION # 51

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

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

Answer: C

Explanation:
In the exhibit provided, the number that highlights the Director-B front-end ports is 4. Here's the explanation:
* Director-B Identification: In a VPLEX system, each director is a separate hardware component that manages data flow. Director-B is one of these components.
* Front-End Ports: The front-end (FE) ports on a director are the interfaces through which the director communicates with hosts or other external devices.
* Number 4 in the Exhibit: The exhibit shows a hardware component with various sections labeled with numbers. Number 4 is located at the upper right quadrant, which is typically where front-end ports are found on a director module.
* VPLEX Documentation: The Dell EMC VPLEX documentation would provide diagrams and detailed descriptions of the hardware components, including the location of the Director-B front-end ports.
By understanding the layout of VPLEX hardware and referencing the official documentation, one can identify the correct number associated with the Director-B front-end ports in the exhibit.

NEW QUESTION # 52
......

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TOP D-VPX-OE-A-24 DUMPS, D-VPX-OE-A-24 RELIABLE TEST SYLLABUS

Top D-VPX-OE-A-24 Dumps, D-VPX-OE-A-24 Reliable Test Syllabus