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Azure Site Recovery (ASR) is a robust disaster recovery service that enables businesses to ensure continuity by replicating workloads from a primary site to a secondary location. When an outage or disruption occurs in the primary region, a failover can be initiated to the secondary region. The failover process ensures that applications and workloads continue to run with minimal downtime. For an Azure Administrator preparing for the AZ-104 Microsoft Azure Administrator exam, mastering ASR and its failover capabilities is essential.
Azure Site Recovery contributes to your business continuity and disaster recovery (BCDR) strategy by orchestrating replication, failover, and failback of virtual machines and physical servers. The service supports not only Azure VMs but also on-premises VMs and physical servers.
Monitor your Site Recovery environment using Azure Monitor and Recovery Services Vault metrics and logs. Ensure that you regularly review replication health, test failover results, and audit operations using the Azure portal or Azure PowerShell.
In conclusion, performing a failover to a secondary region using Azure Site Recovery is a critical operation that requires careful planning, setup, and management. An Azure Administrator should be thoroughly familiar with the steps and best practices to ensure an effective BCDR strategy. Through practical experience and the use of Azure’s detailed documentation, administrators can gain confidence in managing and executing failover operations.
Explanation: Azure Site Recovery provides replication support for both Azure VMs to a secondary Azure region and on-premises VMs and physical servers to Azure.
Explanation: The Recovery Services vault is typically created in the primary region, and it manages the replication to the secondary region.
Explanation: Azure Site Recovery supports many, but not all, operating systems. It’s essential to check the compatibility for specific OS versions in the Azure documentation before setting up replication.
Answer: A, B, C
Explanation: The failover process can automate the creation of VMs in the secondary region, adjust network settings, and run custom automation scripts. Cleanup of primary region resources is a manual step or can be automated using additional scripts or tools.
Explanation: Azure Site Recovery provides a failback process which is initiated manually, but the actual failback tasks are automated, including re-protecting the VMs and replicating data back to the primary region.
Answer: B, C
Explanation: When replicating Azure VMs to a secondary region, you can choose a replication frequency of either 5 minutes or 15 minutes.
Explanation: Azure Site Recovery requires the user to initiate failover. However, once started, it can automate the processes involved in the failover.
Answer: A, B, C, D
Explanation: Azure Site Recovery can protect Azure VMs, Hyper-V VMs, VMware VMs, and even physical servers.
Explanation: Azure Site Recovery allows performing test failovers to validate your disaster recovery plan without affecting production workloads or ongoing replication.
Answer: B
Explanation: The Recovery Point Objective (RPO) defines the maximum tolerated amount of data loss measured in time from a disaster event. It is not directly related to backup frequency, bandwidth limits, or geographic locations.
Explanation: You can customize target resource settings, including VM size and type, in Azure Site Recovery to meet specific needs for the secondary region.
Answer: A, B, C, E
Explanation: To use Azure Site Recovery for VMs in Azure, you need to have Microsoft.Compute, Microsoft.Storage, Microsoft.Network, and Microsoft.RecoveryServices registered within your Azure subscription. Microsoft.OffSiteRecovery is not a valid Azure service for registration.
Azure Site Recovery is a disaster recovery solution that helps businesses protect and recover their critical applications and data in the event of a site outage.
A secondary region is a backup location that can be used to fail over critical applications and data if a primary region becomes unavailable.
The failover process in Azure Site Recovery involves switching production workloads from a primary region to a secondary region in the event of a disaster or outage.
The Azure-to-Azure quickstart for Site Recovery is a step-by-step guide that helps users configure Site Recovery to replicate virtual machines from one Azure region to another.
To use Azure Site Recovery, users must have an Azure subscription, a virtual network in each region, and at least one virtual machine in the primary region.
The Site Recovery Configuration Server is a virtual machine that helps manage replication and failover of virtual machines between Azure regions.
A planned failover is a controlled failover that is initiated when there is a known upcoming outage, while an unplanned failover is triggered by an unexpected outage.
The steps involved in performing a failover with Azure Site Recovery include testing replication, preparing for failover, initiating the failover, monitoring the failover, and performing a failback if necessary.
Azure Site Recovery provides a dashboard that shows the status of failover operations, as well as log data that can be used to diagnose issues.
Azure Site Recovery provides a test failover feature that allows users to test the failover process without impacting production workloads.
Azure Site Recovery supports VMware and physical servers through the use of the Site Recovery Unified Setup, which installs a configuration server and the necessary replication and failover components.
Replication in Azure Site Recovery involves continuously copying data from a primary region to a secondary region, while backup involves taking periodic snapshots of data and storing them for later recovery.
With Azure Site Recovery, users can failover individual virtual machines or entire regions, depending on their needs.
Some best practices for using Azure Site Recovery include testing failover regularly, monitoring the status of replication and failover operations, and using automation and scripting to streamline management tasks.
To optimize the performance of Azure Site Recovery, users should ensure that virtual machines meet the required prerequisites, minimize the amount of data being replicated, and monitor network performance to ensure that replication is not being bottlenecked.
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