Azure Site Recovery (ASR) is a disaster recovery solution provided by Microsoft Azure. It offers different options for replicating and recovering virtual machines, physical servers, and Azure virtual machines to a secondary location in case of an outage or disaster. Here are some of the key options available in Azure Site Recovery:
- Azure-to-Azure replication: With this option, you can replicate and protect Azure virtual machines to another Azure region. It provides you with the ability to recover your applications in case of an outage or planned maintenance in a specific Azure region.
- On-premises to Azure replication: This option allows you to replicate physical servers or virtual machines from your on-premises data center to Azure. It enables you to protect your workloads and data in Azure and recover them in case of on-premises failures.
- Azure-to-on-premises replication: This option enables you to replicate Azure virtual machines back to your on-premises data center. It can be useful in scenarios where you want to migrate workloads from Azure to your on-premises environment or maintain a hybrid deployment.
- Hyper-V replication: Azure Site Recovery supports replicating virtual machines running on Hyper-V hosts to Azure. This option is beneficial for organizations that have their infrastructure hosted on Hyper-V and want to have a disaster recovery plan in place.
- VMware replication: Azure Site Recovery also provides the capability to replicate virtual machines running on VMware vSphere to Azure. This option allows organizations to protect their VMware workloads in Azure and recover them in case of a disaster.
- Replication frequency and recovery point objectives (RPOs): Azure Site Recovery allows you to configure the replication frequency and RPOs based on your business requirements. You can choose options ranging from near-synchronous replication for critical workloads to asynchronous replication for less critical ones.
