D-RP-OE-A-24 Exam Dumps - Dell RecoverPoint Operate Achievement

In a Dell RecoverPoint system with XtremIO arrays at both production and disaster recovery sites, setting the replication mode for a Consistency Group as “Continuous” implies that the replication occurs continuously without predefined intervals. This mode aims to minimize the Recovery Point Objective (RPO), which is the maximum targeted period in which data might be lost due to a major incident. While an RPO of 0 seconds is ideal, it is often not practical due to network latency and system processing times.Therefore, an effective RPO of less than 60 seconds is a realistic target for a “Continuous” replication mode, ensuring that data loss is minimized to the lowest possible timeframe in the event of a disaster1.

EMC AppSync is the product that integrates with RecoverPoint to provide application-driven point-in-time copies. AppSync simplifies and automates the process of generating and consuming copies of production data.Integrated with EMC storage arrays, AppSync enables application owners to satisfy copy demand for data repurposing, operational recovery, and disaster recovery1.

AppSync allows users to:

Discover application databases or file systems.

Create copies of the data (snapshots, clones, or replicas) that are application-consistent.

Use the copies for various purposes, such as development/testing, reporting, or backup and recovery operations.

Restore from the copies in case of data loss or corruption.

AppSync’s integration with RecoverPoint enhances its capabilities by providing a robust data protection solution that can create point-in-time copies based on specific application events or schedules, ensuring that copies are consistent with the application’s state at that moment1.

For the most accurate and up-to-date information, it is always best to consult the latest official Dell RecoverPoint documentation or contact Dell EMC support directly1.

In Dell EMC RecoverPoint, virtual RPAs (vRPAs) use iSCSI protocol for connections. This is because vRPAs are designed to operate in virtual environments where iSCSI is commonly used for storage networking due to its ability to work over standard IP networks.Physical RPAs, such as Gen-5 and Gen-6, typically use Fibre Channel (FC) for direct storage connectivity1.

Here’s a breakdown of the connectivity:

vRPA: Utilizes iSCSI for connections to protected storage. This is suitable for virtualized environments where the RecoverPoint for Virtual Machines (RP4VMs) operates.

Gen-5 and Gen-6 RPAs: These are physical appliances that generally use Fibre Channel for connectivity, which is more common in physical data center environments where dedicated storage networks are present1.

It’s important to choose the correct RPA type based on the storage infrastructure and connectivity requirements of the environment1.

When using RecoverPoint Unisphere to collect system information, the “Collect System Information” file can be stored on an FTP server that is configured on the RPA cluster. This allows for centralized storage and easy access to the file for further analysis or troubleshooting. The steps typically involve:

Accessing Unisphere: Log into the RecoverPoint Unisphere interface.

Running the Wizard: Navigate to the appropriate section and run the “Collect System Information” wizard.

Choosing Storage Option: Select the option to store the file on an FTP server configured on the RPA cluster.

Retrieving the File: Access the FTP server to retrieve the “Collect System Information” file as needed.

This method ensures that the collected system information is securely stored and can be accessed by authorized personnel for maintenance or support purposes1.

Changing the link compression setting on a RecoverPoint Consistency Group can result in a temporary high-load on the system. This is because when compression is enabled or settings are changed, the system needs to compress the existing data before it can be transmitted, which requires additional processing power and can temporarily increase the load on the RecoverPoint Appliances (RPAs).

The process involves:

The administrator changes the link compression setting in the Consistency Group configuration.

The RPAs begin compressing the data that needs to be replicated across the network.

This compression process increases the CPU and memory usage on the RPAs, leading to a temporary high-load situation.

Once the initial compression is completed, the system load returns to normal levels, and replication continues with the new compression setting in effect.

It’s important to note that while the system is under high-load, there might be a temporary impact on performance, but this does not affect the integrity of the replication or the Journal history.The system is designed to handle such temporary increases in load without losing any critical data1.

The Dell EMC RecoverPoint Gen6 appliance contains two slots for I/O modules. For Slot1, the supported I/O modules are 10-Gb optical fiber and 10-Gb twisted copper pair.This means that Slot1 can accommodate either 10 GbE optical or 10 GbE copper I/O modules1.

The I/O modules are network interface cards with the following characteristics:

10-GB OPTICAL FIBER MODULE: 4 ports, Ethernet network type, supported speed of 10 Gb, wire type of optical fiber (SFP+).

10-GB TWISTED COPPER PAIR MODULE: 4 ports, Ethernet network type, supported speed of 10 Gb, wire type of BASE-T twisted copper pair1.

These modules provide the necessary connectivity for the RecoverPoint appliance to manage replication setup and operations, ensuring efficient data protection and disaster recovery capabilities1.

RecoverPoint Write Phase:

In the RecoverPoint replication process, the write splitter plays a crucial role in intercepting writes from the host and forwarding them to both the production storage and the RecoverPoint appliances (RPAs).

Write Splitter Functionality:

The write splitter intercepts write I/O requests from the host and splits the I/O to both the production LUN and the RPAs. This ensures that the data is written to both the primary storage and replicated copies.

Acknowledgement Process:

During the write phase, the write splitter must ensure that the data is successfully written to the production LUN before acknowledging the write request back to the host.

This is because the primary concern is ensuring data integrity and confirming that the data is safely stored in the production environment before any replication considerations.

Detailed Workflow:

Step 1: Host issues a write request.

Step 2: The write splitter intercepts the write request.

Step 3: The write splitter forwards the write to the production LUN and the RPAs.

Step 4: The production LUN processes the write and sends an acknowledgement back to the write splitter.

Step 5: Upon receiving the acknowledgement from the production LUN, the write splitter then sends an acknowledgement back to the host.

In a RecoverPoint/EX cluster, the administrator can add volumes from an unlicensed array as a repository volume.The repository volume is used for internal RecoverPoint operations, such as storing metadata and system information necessary for the RecoverPoint cluster to function1.

The repository volume does not require a license as it is not part of the data replication path and does not store user data. This allows the administrator to utilize storage from an unlicensed array for this purpose.However, for journal and copy volumes, which are directly involved in data protection and replication, a licensed array is required to ensure proper functionality and support1.

It is important to note that while the repository can be on an unlicensed array, all other volumes involved in replication (such as journal and copy volumes) must be on licensed arrays.This ensures compliance with licensing agreements and enables full support and functionality of the RecoverPoint system1.

For the most accurate and up-to-date information, it is always best to consult the latest official Dell RecoverPoint documentation or contact Dell EMC support directly1.