What is fault tolerance menu in vCenter ?

[whitejack08]

By right clicking Guest OS from vCenter, I found fault tolerance menu.

What could I do by this fault tolerance ?

[ScreamingSilenc]

Fault Tolerance is a HA feature of vCenter that allows a level of guest redundancy with zero downtime, which have its own advantage and disadvantage

for more information about FT you can visit below link and Video.

VMware vSphere Fault Tolerance (FT) for Zero Downtime

[whitejack08]

Thank you.

vSphere HA will restart guest VM on the other ESX, when guest VM is down.

FT will have secondary  guest VM on on other ESX,and sync with Primary guest VM, and when Primary guest VM is down , vSphere swithch over to secondary  guest VM without almost no downtime.

Is this right ??

[Abhilash Basavarajaiah]

vSphere HA will restart guest VM on the other ESX, when guest VM is down.

Not when Guest VM goes down, When the ESXi host goes down. It restarts all the VM's on another host.

FT will have secondary  guest VM on on other ESX,and sync with Primary guest VM, and when Primary guest VM is down , vSphere swithch over to secondary  guest VM without almost no downtime.

Perfectly right.

[Sundararajan]

vMware defination says :

vSphere Fault Tolerance provides continuous availability for virtual machines by creating and maintaining a Secondary VM that is identical to, and continuously available to replace, the Primary VM in the event of a failover situation.

Find the link for more useful details about FT.

VMware KB: VMware Fault Tolerance FAQ

VMware vSphere 5.1

[ScreamingSilenc]

FT will have secondary  guest VM on on other ESX,and sync with Primary guest VM, and when Primary guest VM is down , vSphere swithch over to secondary  guest VM without almost no downtime.

Is this right ??

Yes your right but FT has its own Adv's/ Dis Adv's too.

[whitejack08]

Thank you.

What is

FT  Adv's/ Dis Adv's ??

[vmroyale]

Note: Discussion successfully moved from VMware vCenter™ to Availability: HA & FT

Check out:

VMware Fault Tolerance Requirements and Limitations

http://www.vmware.com/files/pdf/partners/academic/fttech.pdf

[Abhilash Basavarajaiah]

If your issues are solved, please close the thread by choosing the correct and helpful answer.

Thank you.