vSphere Features

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The two vSphere features that enable remote site availability are vSphere Fault Tolerance and vSphere Replication.

1. vSphere Fault Tolerance: It allows you to create a real-time shadow instance of a virtual machine that runs simultaneously with the primary instance on a different host. In the event of a host failure, the secondary instance takes over the operations of the primary instance without any downtime or data loss. This feature ensures high availability of critical applications and services.

2. vSphere Replication: It enables replication of virtual machine data from one site to another, ensuring data protection and disaster recovery capabilities. This feature provides asynchronous replication of virtual machine disks and supports multiple recovery points, enabling you to recover virtual machines from any point in time. It is a cost-effective solution for small to medium-sized businesses that cannot afford expensive disaster recovery solutions.

Cross vCenter Migration, vSphere vMotion, and Proactive High Availability are other vSphere features that enhance workload mobility and availability but do not directly enable remote site availability.

• Cross vCenter Migration: It enables you to move virtual machines between vCenter Servers in different locations while maintaining their network identity and settings.

• vSphere vMotion: It allows you to migrate virtual machines from one host to another without any downtime or disruption to end-users.

• Proactive High Availability: It uses proactive measures to predict and avoid possible failures before they occur, thereby improving the overall availability of virtual machines and services.

In summary, vSphere Fault Tolerance and vSphere Replication are the two features that enable remote site availability by providing real-time protection against host failures and replication of virtual machine data across sites.