EMC D-PVM-OE-01 Practice Test Questions Answers

Step by Step Comprehensive Detailed Explanation:

In an MDM (Migration for Dell EMC) migration, data is moved from a source array to a target array. When the symdm sync -stop command is issued, it puts the migration into the CutoverNoSync state. This state signifies that:

Synchronization Stopped:Active data synchronization between the source and target arrays has been stopped.

Data on Both Arrays:However, the customer data still resides onboththe source and target arrays. This is because the CutoverNoSync state is a transitional state that allows for a controlled cutover to the target array.

The next step would typically involve a cutover operation, where host access is switched to the target array, and the source array is removed from the migration configuration.

Why other options are incorrect:

A. Only the target array:While the goal is to eventually have the data only on the target, in the CutoverNoSync state, data still exists on both arrays.

B. Only on the source array:Data has already been partially or fully copied to the target array during the migration process.

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

Dell Solutions Enabler 10.0.0 CLI User Guide:This guide provides detailed information about the symdm command and its various options, including the sync -stop command and the CutoverNoSync state. You can find this document on the Dell Support website by searching for "Solutions Enabler CLI User Guide."

Dell PowerMax Family: Essentials and Best Practices Guide:This guide may offer general information about data migration and the different states involved in the process.

Step by Step Comprehensive Detailed Explanation:

When upgrading Solutions Enabler (SE) on a Linux host, the symcfg discover command plays a crucial role in preparing for the upgrade. Its primary function in this context is to:

Identify the running SE version:Before proceeding with the upgrade, it's essential to know the current version of Solutions Enabler installed on the host. The symcfg discover command gathers information about the existing SE environment, including the version number. This information is used to determine the appropriate upgrade path and ensure compatibility.

Why other options are incorrect:

B. Verifies that the SE daemons have been stopped:While stopping SE daemons is a necessary step before the upgrade, it's not the function of the symcfg discover command.

C. Builds the SYMAPI database:The SYMAPI database is typically built during the initial installation or after a fresh discovery.  

D. Creates backups of the configuration directories:Backups are important, but they are usually handled separately as part of the upgrade process, not by the symcfg discover command itself.

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

Dell Solutions Enabler 10.0.0 Installation Guide:This guide provides detailed instructions for upgrading Solutions Enabler on different operating systems, including Linux. It explains the steps involved and the role of the symcfg discover command in the upgrade process. You can find this document on the Dell Support website by searching for "Solutions Enabler Installation Guide."

Step by Step Comprehensive Detailed Explanation:

In SRDF (Symmetrix Remote Data Facility), an "update" operation refers to a specific process where changes made on the target (R2) side are copied back to the source (R1) side. This is typically used in disaster recovery scenarios where:

Failover:A failover occurs, and the target (R2) becomes the active production site.

Data Modification:Data is modified or updated on the target (R2) while it's acting as the primary.

Update Operation:An "update" is initiated to synchronize the changes from the target (R2) back to the source (R1), ensuring that the source has the latest data.

This process is crucial for maintaining data consistency and ensuring a smooth transition back to the original production site after a failover event.

Why other options are incorrect:

A. process to retain the data on the target R2 side:This is not specific to an "update" operation. Data retention on the target is a general aspect of SRDF.

B. A process used to return to the original production site after a failover event:While an "update" is part of the failback process, it's not the entire process itself. Failback involves other steps like reversing replication direction and restoring host access.

D. A process that allows separate hosts to access the same data independently:This describes a different SRDF configuration (like Active/Active) and is not related to the "update" operation.

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 update command used to initiate an update from R2 to R1. 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 "update" operation.