A TPM (Trusted Platform Module) is a computer chip/microcontroller that can securely store artifacts used to authenticate the platform and since version 6.7 vSphere support TPM 2.0.
If you have a host on you VxRAIL cluster with an alert in vCenter stating TPM 2.0 device detected, the steps below must be performed on each affected node to resolve this error (one at the time):
Before you start, place the host into Maintenance Mode in vCenter using Ensure Accessibilty.
In vCenter, if the host shows disconnected, right-click on the host icon, select ‘Connection’ and reconnect the host before exiting Maintenance Mode.
If there is still an alarm even after a reboot, disconnect and then re-connect the host from vCenter. No need to put the host into maintenance mode when disconnecting host from vCenter.
Please note vCenter versions 6.7u3F or below have a defect that causes TPM attestation to show “internal error” to resolve this issue you need to upgrade to vCenter 6.7U3G or higher.