Management Notes

Management Notes

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How does virtualization help with disaster recovery within a data center?

How does virtualization help with disaster recovery within a data center?

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How does virtualization help with disaster recovery within a data center?

A) support of live migration
B) guarantee of power
C) improvement of business practices
D) supply of consistent air flow

Correct Answer: A) support of live migration

Virtualization plays a crucial role in disaster recovery within a data center by providing various features and capabilities that ensure the continuity of operations and the ability to recover from unexpected events.

Among the given options, “A) support of live migration” is the correct answer, while the others are not directly related to disaster recovery in the context of virtualization.

A) Support of live migration:

Virtualization allows for live migration, which is the process of moving a virtual machine (VM) from one physical server to another without causing any downtime. This capability is instrumental in disaster recovery scenarios because it enables administrators to seamlessly transfer workloads from a compromised or failing server to a healthy one.

Live migration ensures uninterrupted service availability to end-users during the migration process, which is critical during a disaster or unexpected event. By leveraging live migration, data centers can maintain their operations and quickly recover from hardware failures, thereby enhancing disaster recovery capabilities.

Now, let’s discuss why the other options are not correct:

B) Guarantee of power:

While power supply is undoubtedly vital for a data center’s overall operations, it is not a feature of virtualization itself. Virtualization focuses on abstracting and optimizing hardware resources, such as CPU, memory, and storage, rather than providing guarantees related to power supply.

Power-related disaster recovery measures would involve redundant power sources, backup generators, and uninterruptible power supplies (UPS) rather than virtualization technologies.

C) Improvement of business practices:

Virtualization can indirectly improve business practices by offering greater flexibility, scalability, and resource utilization. However, this improvement in business practices is a long-term benefit rather than a direct mechanism for disaster recovery.

Disaster recovery within a data center primarily involves implementing strategies and technologies like data backup, replication, and failover mechanisms, which may be enhanced by virtualization but are not synonymous with it.

D) Supply of consistent airflow:

Consistent airflow is essential for maintaining optimal temperatures within a data center to prevent hardware overheating and failures. However, this aspect is more related to data center design and environmental control systems rather than virtualization technology.

Virtualization primarily deals with the efficient allocation and management of virtualized resources, and while it can indirectly impact airflow through server consolidation, it is not a direct factor in ensuring consistent airflow.

In summary, virtualization’s support of live migration is the correct answer because it directly contributes to disaster recovery within a data center by enabling the seamless transfer of virtual machines during unexpected events or hardware failures.

While power supply, business practice improvements, and consistent airflow are important considerations for data center operations, they are not intrinsic features of virtualization in disaster recovery scenarios.

Data centers should incorporate a comprehensive disaster recovery strategy that includes virtualization alongside other technologies and practices to ensure resilience and business continuity in the face of unforeseen disasters or disruptions.

Smirti
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