setup Fault Tolerance FT on vm guest

[The0ray]

Using a 2008 R2 (64bit) guest with 1 vCPU running on all Hosts running Esxi v6 in cluster, I cannot turn on FT for this particular guest. Getting this wonderful message:

    " There are fault tolerance compatibility issues, which might prevent you from turning on fault tolerance on the selected virtual machine."

          Description : Invalid virtual machine configuration.

I've removed all unsupported hardware, only using LSI SCSI adapter with 2 disks. No CD-ROM, USB, LPT, COMM etc. This guest was a P2V, wondering if that has anything to do with it? I have successfully setup an FT machine that is running 2012 Server OS.

Where can I look to see what is being logged? I scanned the *.log(s) on the Esxi Host it's currently on, nada. Also grepped through the VMWARE-xx.LOG in the datastore, nothing there either?

Any ideas?

[Gache123]

Hi The0ray,

I have the same issue.

Have you find a solution ?

Regards,

Renaud

[birend1988]

Refer this KB and see if this helps.

VMware Knowledge Base

[sk84]

In addition to the provided KB article, check if one of the following unsupported features is used by this virtual machine:

vSphere Features Not Supported with Fault Tolerance

Features and Devices Incompatible with Fault Tolerance

Especially snapshots, storage policies and virtual disks with a size of more than 2 TB can be a problem.

[Gache123]

Hi,

I already see this KB, and the case was already unchecked ....

I don't undersant .... I have another VM on the same cluster on witch FT is enabled.

[Gache123]

I also checked all the check list ...I haven't snapshot on this VM, my VM disk have less than 2TB, I also remove all the virtual devis such cd-rom, floppy.

I also compare with another VM which FT is enabled and i didn't see any difference ...

[IRIX201110141]

Number of vCPUs?

Regards

Joerg

[Gache123]

Only 2 vCPU and 8 GB Ram

[sk84]

There is also a limit on how many FT VMs and FT vCPUs can run on a host. However, in this case the error message should look different.

But just to be safe: How many FT VMs do you have per hosts and how many vCPUs are covered by FT (Primary & Secondary)?

You can also download the vmx file from a VM that works with FT and from a VM that doesn't and compare these 2 files. Maybe you'll find a difference that explains why it doesn't work with this VM.

[Gache123]

Hi,

For the moment, I have only one VM with FT activate.

I will try to compare the VMX.

I will give you some news