ESXi v5.1 VSA cluster

I just deployed VSA cluster with ESXi v5.1  I noticed that fault tolerance is disabled per VM by default.  Now, even if this is turned off shouldn't my VM's will be replicated and a second copy available if hardware failure occurs?  I guess fault tolerance just automates the replica VM to turn on?
gopher_49Asked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Are you referring to VMware FT?

Your VMs will be stored on the VSA in such a fasion, that they will be available, if a VSA SAN dies. This is different to VMware FT.

VMware Fault Tolerance Product Brief
http://www.vmware.com/files/pdf/VMware-Fault-Tolerance-FT-DS-EN.pdf
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Aravind SivaramanTechnical Subject Matter ExpertCommented:
VSA just acts as storage and has the replicated copy of your VM's across the host in the cluster.

FT needs to be enabled on an individual VM's and you have limitation on the number of VM's FT can be enabled.

If you are planning to using FT in VSA then read this article

http://blogs.vmware.com/vsphere/2012/08/vsphere-storage-appliance-vsa-fault-tolerant-vms.html
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