课程: VMware vSphere 8 Certified Technical Associate - Data Center Virtualization (VCTA-DCV) (1V0-21.20) Cert Prep

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Zero-downtime failover with Fault Tolerance (FT)

Zero-downtime failover with Fault Tolerance (FT) - vSphere教程

课程: VMware vSphere 8 Certified Technical Associate - Data Center Virtualization (VCTA-DCV) (1V0-21.20) Cert Prep

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Zero-downtime failover with Fault Tolerance (FT)

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- [Instructor] In this video, I'll explain how you can use fault tolerance to provide zero downtime protection of virtual machines. So fault tolerance is different than high availability, with fault tolerance, we're looking at protecting critical virtual machines. So that in the event of a failure, there's no loss of data, transactions or connections, and that there's zero downtime in the event of a failure. And the way that fault tolerance works is that the VM that we are protecting is going to be mirrored to a second virtual machine on a different ESXi host. And the state of the primary VM will consistently be synchronized to the secondary VM through a mechanism called checkpointing. So if the ESXi host to the primary VM is running on fails, that will result in an immediate failover to the secondary. The secondary will become the primary and a new secondary will be respond to protect the new primary. So one of the features of fault tolerance that's relatively new is that the…

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