VMs Migration to new VxRail cluster

Hi,

Thanks for your question. Are the CPUs on both types of hosts the same brand? All Intel or all AMD? Also make sure that TPM is setup. https://dell.to/3BarhYO

Then Steps below to be performed on each affected node one at a time. Before placing nodes into Maintenance Mode, ensure that the cluster is healthy, that there is not an active VSAN re-synchronization, and that there are adequate resources available for VM Migration and enough free VSAN space available for fault tolerance.

1. Place the host into Maintenance Mode in vCenter using 'Ensure Accessibilty'.
2. Use IDRAC or BMC to open a console to the host. Reboot the host and enter BIOS settings, when available, by hitting F2 for System Setup >  System BIOS 
3. Go to the boot settings and take the screenshot for the UEFI Boot Sequence.
4. Reset BIOS settings to default by clicking the  "Default"  button. (Note: Resetting BIOS setting to default may change the BIOS boot order.)
5. 5. Enter System Security
      a. 'TPM Security' should be 'On'
      b. 'TxT' should be 'On'

Let us know if there is anything else we can help you with.

Thank you for yor reply, we are trying to migrate using cold cross vcenter migration using import VMs from target to get VMs from source. Does cold migration need same processor type too ?

For TPM i am trying to migrate to the host not adding it to vCenter does TPM affect the migration ? 

In general cold migrations should be fine with different CPUs but if a feature set is missing on one it could still cause issues. Both vcenters should be on the same version. https://dell.to/3Bb2tAc