VMware Fault Tolerance (FT)

VMware Fault Tolerance (FT) – vSphere 6.0

Earlier version of VMware has a vCPU limitation on VMware FT . Bu in vSphere 6.0 vmware broken the limitation , FT VM’s now supports up to 4 vCPU and 64 GB RAM (it was 1 vCPU and 64 GB RAM in vSPhere 5.5). WIth this new update now FT can be used to protect your mission critical applications.

Benefits of Fault Tolerance

Continuous Availablity with Zero downtime and Zero data loss
NO TCP connections loss during failover
Fault Tolerance is completely transparent to Guest OS.
FT doesn’t depend on Guest OS and application
Instantaneous Failover from Primary VM to Secondary VM in case of ESXi host failure

What’s New in vSphere 6.0 Fault Tolerance

FT support upto 4 vCPUs and 64 GB RAM
Fast Check-Pointing, a new Scalable technology is introduced to keep primary and secondary in Sync by replacing “Record-Replay”
vSphere 6.0, Supports vMotion of both Primary and Secondary Virtual Machine
With vSphere 6.0, You will be able to backup your virtual machines. FT supports for vStorage APIs for Data Protection (VADP) and it also supports all leading VADP solutions in Market like symantec, EMC, HP ,etc.
With vSphere 6.0, FT Supports all Virtual Disk Type like EZT, Thick or Thin Provisioned disks. It supports only Eager Zeroed Thick with vSphere 5.5 and earlier versions
Snapshot of FT configured Virtual Machines are supported with vSphere 6.0
New version of FT keeps the Separate copies of VM files like .VMX, .VMDk files to protect primary VM from both Host and Storage failures. You are allowed to keep both Primary and Secondary VM files on different datastore.