EMC D-RP-OE-A-24 Exam With Confidence Using Practice Dumps

Questions no:What will be the replication state between the new production and former production when the administrator selects “Set Copy as Production”?

Verified Answer:When “Set Copy as Production” is selected, the failover replica copy is confirmed as the new Production and initiates replication to additional replicas other than the original Production copy which is already receiving writes after the failover1. This means that the replication state between the new production and former production would involve initiating replication to the additional replicas.

Step by Step Comprehensive Detailed Explanation with References:

Failover Occurs: The administrator initiates a failover, which involves switching the roles of the production and non-production copies.

Set Copy as Production: The administrator selects the “Set Copy as Production” option, which confirms the failover replica copy as the new Production.

Replication Initiated: Replication is initiated to additional replicas, excluding the original Production copy, which continues to receive writes after the failover.

State of Former Production: The former production copy, now a replica, will be in a state where it is receiving the replicated data from the new production copy.

This process ensures that the data protection and replication continue seamlessly after the failover, with the new production copy taking over the role of the source for replication1.

In a Distributed Consistency Group (DCG) configuration, the primary RPA and secondary RPAs work together to manage a larger data throughput than a single RPA can handle. This is achieved by dividing the workload among multiple RPAs. As a result, there is an increase in traffic observed on the WAN network between the RPAs.This is because the data that is being replicated needs to be transferred over the WAN to ensure that all RPAs have the necessary information to maintain consistency and data protection1.

The process involves:

The primary RPA receives write I/Os from the production environment.

The primary RPA then distributes the data to the secondary RPAs over the WAN.

The secondary RPAs process the data and replicate it to their respective Journal volumes.

This distribution of workload allows the DCG to handle higher throughput and IOPS rates than a single RPA could manage1.

It’s important to note that while there is additional traffic on the WAN, this does not necessarily mean that the FC (Fibre Channel) links or management network are unaffected.However, the most significant increase in traffic is observed on the WAN network, which is the communication link between the RPAs in a DCG configuration1.

Snapshot Technology: XtremIO arrays use snapshot technology that allows for quick access to data at a specific point in time.

Logged Access Mode: When using RecoverPoint with XtremIO arrays, Logged Access mode is used because it leverages the snapshot capabilities of XtremIO.

Instant Promotion: The snapshots created by XtremIO are instantly promoted as the SCSI personality of the copy, making them immediately accessible to the host.

Efficiency: This process is efficient because it does not require the Journal to roll forward or backward, which would be necessary for other access modes like Virtual Access.

This capability is part of what makes XtremIO an effective storage solution for environments requiring rapid access to multiple data points for testing, development, or recovery purposes12.