Dell EMC D-PVM-OE-01 Exam Questions

Step by Step Comprehensive Detailed

Dell PowerMax storage arrays utilize different device types for various purposes. Solutions Enabler (SYMCLI) and Unisphere for PowerMax are management tools that can interact with these device types. Here's a breakdown:

SRDF Thin Devices (RDF1 or RDF2): These devices are specifically used for SRDF (Symmetrix Remote Data Facility) replication. RDF1 devices represent the local copy of data in an SRDF relationship, while RDF2 devices represent the remote copy. Both Solutions Enabler and Unisphere can manage these devices to configure and monitor SRDF replication.

Internal Thin Devices (Int+TDEV): These are thin provisioned devices that reside within the PowerMax storage array. They are used for general storage purposes and can be managed by both Solutions Enabler and Unisphere for tasks like provisioning, allocating capacity, and monitoring performance.

Thin Devices (TDEV): This is a general term for thin provisioned devices in PowerMax. Thin provisioning allows for efficient storage utilization by allocating capacity on demand. 1 Both Solutions Enabler and Unisphere can manage these devices.

https://www.n-able.com/blog/thin-provision-vs-thick-provision

https://www.n-able.com/blog/thin-provision-vs-thick-provision

Why other options are incorrect:

B . Thin BCV Devices (BCV+TDEV): BCV (Business Continuance Volume) devices are used for creating point-in-time copies for disaster recovery. While Solutions Enabler can manage BCV devices, Unisphere for PowerMax has limited functionality for managing them directly.

D . Data Devices (TDATs): TDATs are physical devices within the PowerMax array. While Solutions Enabler can interact with TDATs at a lower level, Unisphere for PowerMax primarily focuses on managing logical devices and storage groups.

Reference and documents of Dell's public documentation for PowerMax Operate v.2:

Dell PowerMax Family: Essentials and Best Practices Guide: This guide provides an overview of PowerMax devices and their management. It mentions the different device types and how they are used in the PowerMax environment.

Dell Solutions Enabler 10.0.0 CLI User Guide: This guide provides detailed information about Solutions Enabler commands for managing various device types, including SRDF devices, thin devices, and internal devices.

Dell Unisphere for PowerMax 10.0.0 Online Help: The online help documentation for Unisphere for PowerMax explains how to manage different device types through the graphical user interface, including provisioning, monitoring, and configuring storage.

Step by Step Comprehensive Detailed

SnapVX Clones: SnapVX clones are full, writable copies of a source volume created using the SnapVX snapshot technology. They are independent volumes that can be used for various purposes, such as testing, development, or data analysis.

Secure Snapshots: SnapVX offers the capability to create 'secure snapshots.' When a clone is derived from a secure snapshot, it inherits the same protection, making it immutable and preventing any modifications or deletion. This ensures data integrity and protection against accidental or malicious changes.

Crash Consistent: SnapVX clones can be made crash consistent. This means that the clone captures a point-in-time copy of the source volume that is consistent with a database or application crash. This is important for ensuring data integrity and recoverability in situations where the source volume experiences an unexpected outage.

Why other options are incorrect:

A . Maximum 1024 snaps per volume: This limit applies to the source volume, not the clones themselves. Each clone is an independent volume.

C . Restores directly to the source volume: Clones are independent copies and do not directly restore to the source volume. Data can be copied or moved from the clone to the source if needed.

D . Is Read-only: SnapVX clones are fully writable copies, not read-only.

Reference and documents of Dell's public documentation for PowerMax Operate v.2:

Dell Solutions Enabler 10.0.0 TimeFinder SnapVX CLI User Guide: This guide provides detailed information about SnapVX features and commands, including how to create and manage clones. It confirms the ability to create secure clones and the option to make them crash consistent.

Dell PowerMax Family: Essentials and Best Practices Guide: This guide offers a comprehensive overview of PowerMax technologies, including SnapVX. It highlights the benefits of SnapVX clones for various use cases.

Step by Step Comprehensive Detailed

The Port Attributes page in Unisphere for PowerMax allows storage administrators to configure various settings related to the front-end ports on the storage array. One of the functions available on this page is Select Mgt Option.

This option allows you to specify how the port is used for management purposes:

Dedicated Management Port: You can designate a port as a dedicated management port, which is used exclusively for communication with management tools like Unisphere and Solutions Enabler.

Shared Management Port: You can configure a port to be shared for both management traffic and host I/O traffic.

This flexibility allows you to optimize port usage and segregate management traffic if needed.

Why other options are incorrect:

A . Manage Protocol: Protocol settings (like FC or iSCSI) are typically configured elsewhere in Unisphere, not on the Port Attributes page.

C . Volume Set Addressing: Volume Set Addressing is a feature related to mainframe connectivity and is not directly managed through the Port Attributes page.

D . ORS Ceiling: ORS (Open Replicator Solutions) settings are managed separately and not through the Port Attributes page.

Reference and documents of Dell's public documentation for PowerMax Operate v.2:

Dell Unisphere for PowerMax 10.0.0 Online Help: The online help for Unisphere provides detailed information about the Port Attributes page and the available configuration options, including the 'Select Mgt Option' function. You can access this help within Unisphere itself or on the Dell Support website.

Dell PowerMax Family: Essentials and Best Practices Guide: This guide may offer general information about port management and configuration in PowerMax.

Step by Step Comprehensive Detailed

The PowerMax 8500 is a high-end storage array designed for enterprise environments with demanding capacity requirements. The maximum capacity per array in a PowerMax 8500 is 24 petabytes effective (PBe).

This means that after considering data reduction technologies like deduplication and compression, the array can store up to 24 petabytes of usable data.

Why other options are incorrect:

A . 8 PBe, B. 18 PBe, C. 20 PBe: These values are lower than the actual maximum capacity of the PowerMax 8500.

Reference and documents of Dell's public documentation for PowerMax Operate v.2:

Dell PowerMax 8500 Hardware Information Guide: This guide provides detailed technical specifications for the PowerMax 8500, including its maximum capacity. You can find this document on the Dell Support website by searching for 'PowerMax 8500 Hardware Information Guide.'

Dell PowerMax Family: Essentials and Best Practices Guide: This guide offers a general overview of the PowerMax family, including the 8500 model and its key features and capabilities.

Step by Step Comprehensive Detailed

A Gatekeeper in PowerMax is a small, dedicated device used for communication between the storage array and Solutions Enabler (SYMCLI), the command-line management interface. The default size of a Gatekeeper on a PowerMax array is 3 cylinders.

While the size can technically be specified in kilobytes (KB), the traditional and preferred unit for Gatekeeper size is cylinders. This is because cylinders represent a specific number of blocks on the physical disks, and using cylinders helps ensure consistent sizing across different disk types and configurations.

Why other options are incorrect:

A . 3 KB, C. 6 KB: These sizes are too small to be practical for a Gatekeeper.