Get Dell EMC D-PWF-DS-23 Exam Practice Questions - Real and Updated

Answer : B

Secure snapshots in PowerFlex are controlled by policies that define their retention and expiration periods. If a snapshot has a lock enabled, it cannot be deleted until the lock is disabled. The lock is a security feature that prevents accidental or unauthorized deletion of the snapshot before its intended retention period1.

To delete a secure snapshot that is still within its expiration period but needs to be removed, the administrator must first disable the snapshot policy lock. Here are the general steps to do so:

Access PowerFlex Manager.

Navigate to the Snapshots section.

Locate the specific snapshot that needs to be deleted.

Disable the lock on the snapshot policy associated with the snapshot.

Once the lock is disabled, the snapshot can be deleted manually.

Changing the snapshot expiration period to 30 days (Option C) would not affect the ability to delete the snapshot if the lock is still enabled. The Dual Signature Policy agreement with Dell (Option A) is not a standard procedure for deleting snapshots within PowerFlex and is not related to the administrative controls of snapshot policies.

Therefore, the correct answer is B. Disable the snapshot policy lock on the snapshot, as this action will allow the administrator to delete the snapshot before the expiration period, provided that the snapshot is no longer needed and can be safely removed from the system1.

Answer : A

The maximum raw capacity that can be expected in a 1U Node while configuring a PowerFlex system with an MG (Multi-Granularity) pool is 38.4 TB. This is based on the typical maximum raw storage capacity available for a 1U node configuration, which is designed to fit within the physical constraints of a 1U rack space while providing a balance of capacity and performance1.

The MG pool in PowerFlex is designed to optimize storage efficiency and performance, and the capacity of a 1U node would be aligned with the specifications that ensure the system's reliability and scalability. The other options listed provide capacities that are generally too high for a single 1U node within the PowerFlex architecture1.

Therefore, the correct answer is A. 38.4 TB, as it represents the realistic maximum raw capacity for a 1U Node in a PowerFlex system with an MG pool.

Answer : A, C, D

To configure Storage Data Targets (SDTs) for I/O operations with hosts using the NVMe over Fabric protocol, the following requirements are necessary:

The Storage port must be configured with the host role: The storage port, which is part of the SDT, needs to be configured to communicate with the host systems.This involves setting the port to operate in the host role, which allows it to handle input/output operations with the hosts1.

The NVMe Qualified Name (NQN) of the hosts is known: The NQN is a unique identifier used in NVMe over Fabrics to identify both NVMe targets and hosts.Knowing the NQN of the hosts is essential for proper configuration and communication between the SDTs and the hosts1.

A minimum of two NVMe targets must be assigned to a Protection Domain: For redundancy and to ensure continuous availability, it is recommended to have at least two NVMe targets assigned to a Protection Domain.This allows for failover capabilities and load balancing across multiple paths1.

These requirements are based on the best practices for setting up NVMe over Fabric protocols as outlined in the PowerFlex documentation and resources.Proper configuration of the storage ports, knowledge of the NQN, and assignment of NVMe targets to a Protection Domain are crucial steps in ensuring successful I/O operations with NVMe over Fabrics1.

Answer : A

The creation of a NAS server requires a dedicated storage pool. If a storage pool specifically for NAS has not been created, the NAS server creation will fail. This is because the NAS server needs to allocate space from a storage pool to store the file system data. Without a designated storage pool, the NAS server cannot be configured properly1.

The other options, while important for the operation and integration of a NAS server, are not directly related to the creation process itself. For instance, using the same VLAN as block storage networks (Option B) may lead to network conflicts, but it would not prevent the creation of the NAS server. Similarly, not defining DNS in the NAS server creation wizard (Option C) could cause resolution issues later on, but it is not a prerequisite for the creation of the NAS server. Lastly, while adding FSN to the cluster (Option D) is a necessary step for enabling file system services, it is not the cause of the NAS server creation failure in this context.

Therefore, the correct answer is A. A Storage Pool for NAS has not been created, as it is a fundamental requirement for the NAS server creation process in a PowerFlex environment.

Answer : C

The cause of the snapshot creation failure when a volume has a snapshot policy assigned is likely because the snapshot is the 61st created by the policy. According to Dell PowerFlex documentation, of the 126 user-available snapshots per volume, sixty (60) can be used for policy-based snapshot scheduling1. This means that if the policy attempts to create a snapshot beyond this limit, it will fail.

Here's a step-by-step explanation of the issue:

Snapshot Policy Limit: Each volume in a PowerFlex system can have a maximum of 126 user-available snapshots. For policy-based snapshot scheduling, the limit is 60 snapshots per volume1.

Policy-Based Snapshot Creation: When a snapshot policy is in place, it will automatically attempt to create snapshots based on the defined schedule and retention levels.

Failure Point: If the snapshot policy tries to create a snapshot and it is the 61st snapshot for that volume, the creation will fail because it exceeds the limit set for policy-based snapshots1.

Resolution: To resolve this issue, the administrator would need to adjust the snapshot policy to ensure that it does not exceed the limit of 60 snapshots. This may involve modifying the retention levels or the frequency of snapshot creation.

This explanation is based on the snapshot policy details provided in the Dell PowerFlex documentation, which outlines the restrictions and uses of snapshots within the PowerFlex storage system1.