EMC D-PVM-OE-01 Exam With Confidence Using Practice Dumps

Step by Step Comprehensive Detailed Explanation:

In an SRDF (Symmetrix Remote Data Facility) disaster recovery scenario where production has been switched to the R2 devices at the target site, theResumeoperation allows the primary hosts to regain access to the R1 devices without waiting for a full data transfer from the R2 devices.

Here's how it works:

R1 Access:The Resume operation makes the R1 devices (at the primary site) accessible to the primary hosts.

Background Synchronization:While the hosts access and modify data on the R1 devices, SRDF continues to synchronize the changes from the R2 devices (at the target site) in the background. This ensures that the R1 devices are gradually updated with any changes that occurred on the R2 devices during the failover.

This approach minimizes downtime and allows for a quicker return to the primary site without waiting for a lengthy synchronization process to complete before granting host access.

Why other options are incorrect:

A. Update:This operation copies changes from R2 to R1, but it doesn't necessarily grant immediate host access to R1.

B. Fallback:This is a more comprehensive process that involves reversing replication direction and fully restoring the primary site as the production environment.

C. Failover:This operation switches production to the R2 devices, not the R1 devices.

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

Dell Solutions Enabler 10.0.0 SRDF Family CLI User Guide:This guide provides detailed information about SRDF commands and operations, including the symrdf resume command. You can find this document on the Dell Support website by searching for "Solutions Enabler SRDF Family CLI User Guide."

Dell PowerMax Family: Essentials and Best Practices Guide:This guide offers a comprehensive overview of SRDF and its functionalities, including disaster recovery scenarios and the use of the "Resume" operation.

Step by Step Comprehensive Detailed Explanation:

Unisphere for PowerMax offers different deployment options to manage PowerMax storage arrays. Based on the exhibit, we can identify the following:

Separate SYMAPI Server:The diagram shows a dedicated SYMAPI server. SYMAPI (Symmetrix Application Programming Interface) is a command-line interface used to manage PowerMax and VMAX storage arrays. This indicates that the Unisphere server is not directly connected to the storage arrays.

Unisphere Server Connected to SYMAPI Server:The Unisphere server is shown to be connected to the SYMAPI server. This means that the Unisphere server relies on the SYMAPI server to communicate with the PowerMax arrays.

No Direct Connection to Arrays:The Unisphere server does not have a direct connection to the PowerMax arrays.

Considering these points, the deployment option depicted in the exhibit is aremote deployment. In a remote deployment, the Unisphere server is installed on a separate host and communicates with the PowerMax arrays through a SYMAPI server. This allows for centralized management of multiple arrays from a single Unisphere instance.

Why other options are incorrect:

A. Embedded:In an embedded deployment, the Unisphere software runs directly on the PowerMax array itself. This eliminates the need for a separate Unisphere server.

B. Either remote or local:While the diagram could technically represent a local deployment with a dedicated SYMAPI server, the presence of the separate SYMAPI server and the lack of direct connection to the arrays strongly suggest a remote deployment.

D. Local:In a local deployment, the Unisphere server is typically installed on the same host as Solutions Enabler, which has direct connectivity to the storage arrays.

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

Dell Unisphere for PowerMax 10.0.0 Installation Guide:This guide provides detailed information about the different Unisphere deployment options, including local, remote, and embedded. It also includes diagrams and explanations of each deployment scenario. You can find this document on the Dell Support website by searching for "Unisphere for PowerMax Installation Guide."

Dell PowerMax Family: Essentials and Best Practices Guide:This guide offers a general overview of PowerMax systems and their management using Unisphere. It may provide context for understanding the different deployment options.