A storage administrator wants to protect their distributed VPLEX volumes using the RecoverPoint,
MetroPoint feature. The administrator wants to know if they need to be aware
of any special considerations. What information should be provided to the administrator?
B
Explanation:
When using the MetroPoint feature of RecoverPoint to protect distributed VPLEX volumes, it is
essential that both VPLEX clusters have a connected RecoverPoint cluster.
This is necessary to create
a MetroPoint Consistency Group, which is a configuration that allows for continuous data protection
and availability across multiple sites1
.
The MetroPoint solution provides a three-site configuration that combines VPLEX Metro (which
operates within distances of 5-10ms round-trip time, application dependent) with a third site
provided by a RecoverPoint appliance.
This setup ensures that data is continuously available and
protected, and it allows for failover between two Metro sites without impacting protection1
.
It’s important to note that while MetroPoint enables protection for VPLEX devices at both sites, the
requirement for both VPLEX clusters to be connected to a RecoverPoint cluster is crucial for the
creation and proper functioning of a MetroPoint Consistency Group1
.
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 directly2
.
Which EMC product integrates with RecoverPoint to provide application-driven point-in-time copies?
A
Explanation:
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
.
Which factor affects the time it takes a Consistency Group to complete the first-time initialization?
B
Explanation:
The performance of the Journal volumes at the remote copy can significantly affect the time it takes
for a Consistency Group to complete the first-time initialization. The Journal volumes are where all
the changes to the protected volumes are recorded before they are replicated to the remote site.
If
the Journal volumes are performing poorly, due to issues like high latency or low IOPS (Input/Output
Operations Per Second), it can slow down the initialization process as the system struggles to record
and replicate the data efficiently1
.
Other factors such as the distance between the production and remote copy clusters and the number
of RecoverPoint Appliances (RPAs) at both the production and remote copy clusters can also
influence the initialization time. However, these factors typically affect the ongoing replication
performance rather than the initial synchronization.
The number of RPAs can impact the system’s
ability to process and replicate data, but the most direct impact on initialization time is the
performance of the Journal volumes, as they are the bottleneck in the data recording process1
.
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
.
Which types of I/O modules can be inserted into Slot1 of a Gen-6 RPA?
D
Explanation:
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
.
Which tools are listed under "System Analysis and Tools" section of Unisphere for RecoverPoint?
A
Explanation:
Under the “System Analysis and Tools” section of Unisphere for RecoverPoint, the tools listed are
designed to assist administrators in analyzing and optimizing the RecoverPoint system. The tools
include:
Detect Bottlenecks: This tool helps identify any performance bottlenecks within the RecoverPoint
system. It analyzes the flow of replication data and points out areas where there might be congestion
or delays, allowing administrators to take corrective actions.
Balance Load: The Balance Load tool is used to evenly distribute the workload across the
RecoverPoint Appliances (RPAs) to prevent any single RPA from becoming a performance bottleneck.
This ensures that the system operates efficiently and that replication tasks are completed in a timely
manner.
Collect System Information: This tool gathers comprehensive information about the RecoverPoint
system’s configuration and operation. It is useful for troubleshooting issues, performing system
audits, and preparing for support calls or maintenance activities.
These tools are integral to maintaining the health and performance of the RecoverPoint environment
and are accessible through the Unisphere for RecoverPoint interface1
.
What is the minimum size of a Journal when using Distributed Consistency Groups?
B
Explanation:
For Distributed Consistency Groups in a Dell RecoverPoint environment, the minimum size required
for each journal volume is 40 GB.
This is the minimum per copy, which can be a single LUN or
multiple LUNs that add up to at least 40 GB1
.
The size of the journal is determined by the write change rate of what is being replicated and the
protection window required per Consistency Group. A general rule of thumb is about 15-20% of the
total amount of data being replicated.
For example, if a Distributed Consistency Group (DCG) has
production server LUNs totaling 500 GB, then the journal per copy would be about 100 GB following
this rule1
.
It’s important to note that while 40 GB is the minimum, the actual size may need to be larger
depending on the specific requirements and write change rate of the environment.
The journal size
should be sufficient to handle the data changes and provide the necessary protection window1
.
A RecoverPoint storage administrator needs to protect a mission critical application. The application
is stored on three volumes provisioned from a new VNX. Once the
Consistency Group is created for the application, how many replication sets will the group contain?
B
Explanation:
In Dell RecoverPoint, a Consistency Group is built from one or more replication sets.
Each replication
set consists of a production volume plus any local or remote copy volumes to which it is replicating1
.
Since the mission-critical application is stored on three volumes, and each volume will be part of a
replication set, the Consistency Group for the application will contain three replication sets.
This
ensures that all three volumes are protected and replicated as part of the RecoverPoint protection
strategy1
.
It’s important to note that the number of replication sets in a Consistency Group is equal to the
number of production volumes being replicated.
Therefore, if an application spans multiple volumes,
each volume will be part of its own replication set within the Consistency Group1
.
What is the purpose of the save_settings command?
A
Explanation:
The save_settings command in Dell RecoverPoint is used to commit cluster configuration changes to
the repository volume. When changes are made to the RecoverPoint cluster configuration, they need
to be saved to ensure that they persist across system reboots and are recognized by all nodes in the
cluster.
The repository volume serves as a centralized storage location for these configurations1
.
The process of using the save_settings command is as follows:
After making configuration changes to the RecoverPoint cluster, the administrator issues the
save_settings command.
The command commits the changes to the repository volume, which is a dedicated space on the
storage array for storing system settings.
This ensures that the configuration changes are preserved and can be accessed by the RecoverPoint
Appliances (RPAs) when needed1
.
It’s important to note that the save_settings command does not create a script file for later use, nor
does it modify the configuration backup interval.
Its primary function is to ensure that any changes
made to the cluster configuration are saved and applied correctly1
.
In order to balance the workload of a RecoverPoint system, an administrator decided to change the
primary RPA for specific Consistency Groups. Where is this setting
configured?
C
Explanation:
The setting to change the primary RecoverPoint Appliance (RPA) for specific Consistency Groups is
configured under the Group Policy tab for the Consistency Groups.
This tab allows administrators to
manage and adjust policies that affect the entire Consistency Group, including the assignment of the
primary RPA, which is responsible for managing the replication for the group1
.
The process for changing the primary RPA typically involves:
Accessing the Unisphere for RecoverPoint interface.
Navigating to the Consistency Groups section.
Selecting the specific Consistency Group to be modified.
Going to the Group Policy tab.
Adjusting the settings to designate a new primary RPA for the group.
This change can help balance the workload across the RPAs in the RecoverPoint system, ensuring
that no single RPA becomes a performance bottleneck and that the replication process remains
efficient and effective1
.
A RecoverPoint administrator wants to use the compression setting to save bandwidth in their
environment. What will be the impact of changing the link compression setting on a Consistency
Group?
B
Explanation:
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
.