Legit D-PVM-OE-01 Exam Download

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.

Step by Step Comprehensive Detailed Explanation:

Before performing an SRDF/S (synchronous) Restore operation, it is crucial tostop all host I/O activityto both the R1 (source) and R2 (target) devices. This ensures data consistency and prevents potential data loss or corruption during the restore process.

Here's why:

Data Integrity:An SRDF/S Restore operation involves copying data from the R1 device to the R2 device, overwriting any existing data on R2. If hosts are actively accessing and modifying data on either device during this process, it can lead to inconsistencies and data integrity issues.

Synchronization:SRDF/S maintains real-time synchronization between the R1 and R2 devices.1Performing a Restore operation while hosts are writing data can disrupt this synchronization and lead to unpredictable results.  

Why other options are incorrect:

A. Continue accessing the R1 devices. Stop accessing the R2 devices:This would leave R1 vulnerable to data inconsistencies.

B. Stop accessing the R1 devices. Continue accessing the R2 devices:This would make R2 susceptible to data loss or corruption.

D. Continue accessing the R1 and R2 devices:This is the most dangerous option, as it would likely lead to data integrity issues.

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 operations, including Restore. It emphasizes the importance of halting host I/O before performing such operations to ensure data consistency. 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 may offer general information about SRDF management and best practices, which would include recommendations for performing operations like Restore safely.