Fault Tolerance on vCenter 6.5 and ESXi 6.5

Hi EE,

Is it normal on vCenter 6.5 and ESXi 6.5 the FT vm's to Start Fault Tolerance Secondary VM took about 1.5 hour to completed?

Our current production vCenter 6.0 with ESXi 5.1 turn on and Start Fault Tolerance Secondary VM will start immediately

Any tuning that I've missed out on vCenter 6.5 and ESXi 6.5.

During turn on the FT VM on vCenter 6.5 and ESXi 6.5 there is a fault tolerance compatibility warnings "The virtual NIC associated with the host has insufficient bandwidth for vSphere Fault Tolerance logging"

I know the recommendation for FT logging is 10GB bandwidth but not a requirement. Has anyone managed to set this up with version 6.5 and less than 10 GB bandwidth?
Panda 5888EngineerAsked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
No it's not normal.

"The virtual NIC associated with the host has insufficient bandwidth for vSphere Fault Tolerance logging"

that is probably why, it too so long to create the "mirror.".

We don't have 10GBe, and it does not take that long.
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Panda 5888EngineerAuthor Commented:
Thanks Andrew,

On new vCenter 6.5 and ESXi 6.5 we follow same configuration/setting on our current production vCenter 6.0 and ESXi 5.1

EVC mode intel penryn
FT logging using vmotion network
All vmnic manual set 1000gb full duplex
FT logging vmkping network test time=0.180
FT logging MTU 1500


Anyway what is the acceptable time frame to Start Fault Tolerance Secondary VM on ESXi 6.5 and vCenter 6.5?

Any recommendation setting how to by pass the compatibility error "The virtual NIC associated with the host has insufficient bandwidth for vSphere Fault Tolerance logging" except 10Gbe infra

Now I'm in the middle cloning one of the test FT VM to change the storage type from Thick to Thin and test again to turn on the FT

Your recommendation and advise is highly appreciated
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Panda 5888EngineerAuthor Commented:
Hi All,

The issue has been resolved. Thanks
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Panda 5888EngineerAuthor Commented:
The test is working
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