Which feature helps maintain zero data loss when a VM on an ESXi server fails unexpectedly?
Which feature helps maintain zero data loss when a VM on an ESXi server fails unexpectedly?
Fault Tolerance is a feature in VMware vSphere that provides continuous availability for virtual machines by creating a live shadow instance of a VM that is always up-to-date with the primary VM. In the event of an unexpected VM failure on an ESXi server, the secondary instance takes over immediately, ensuring continuous operation and zero data loss. This is the key functionality that guarantees no data is lost during such failures.
The answer is definitely A. This is the entire point of fault tolerance.
A https://docs.vmware.com/en/VMware-vSphere/6.7/vsphere-esxi-vcenter-server-672-availability-guide.pdf
I would highly choose A
Selected Answer: A vSphere Fault Tolerance Provides Continuous Availability The functioning ESXi host seamlessly becomes the Primary VM host without losing network connections or in-progress transactions. With transparent failover, there is no data loss and network connections are maintained. After a transparent failover occurs, a new Secondary VM is respawned and redundancy is re-established. The entire process is transparent and fully automated and occurs even if vCenter Server is unavailable.
Definitely FT
FT is a feature in VMware vSphere that provides continuous availability for virtual machines by creating a live shadow instance of a VM that is always up-to-date with the primary VM.
The feature that helps maintain zero data loss when a virtual machine on an ESXi server fails unexpectedly is: A. Fault Tolerance Fault Tolerance (FT) is a feature in VMware vSphere that provides continuous availability for virtual machines by creating a live shadow instance of a VM that is always up-to-date with the primary VM. In case of a hardware failure or an unexpected VM failure on the primary host, the secondary shadow instance instantly takes over without interruption or data loss, ensuring continuous operation and zero downtime. FT ensures that there's no data loss because both the primary and secondary VMs have the same state at all times, allowing for seamless failover without disruption.
response is A, the goal is zero downtime so: The best use for fault tolerance is to mirror virtual machines that are running critical applications and require nearly zero downtime. Because FT is easy to configure and manage, it can be useful for applications that may not be critical but would be problematic if they failed.
A Fault Tolerance provides continuous availability by ensuring that the states of the Primary and Secondary VMs are identical at any point in the instruction execution of the virtual machine.