VMware | Taamneh tech stuff

ESXi Host TPM attestation alarm

On February 4, 2021

One of the new feature of VMware vSphere 6.7 is the full support for Trusted Platform Module (TPM) 2.0 devices both at host and VM level.

But when you are using a TPM 2.0 device on an ESXi host, the host might fail to pass the attestation phase.

In this case, on your host, you will notice a critical error like this:

The vSphere Client does not provide any other information, neither at task or event level. To troubleshoot the potential causes of this problem you can use this VMware documentation.

SQL Server does not use all assigned CPUs on VM

By Aldin Taamneh

On February 3, 2021

In Virtualization, VMware, Windows Server

As Virtual Machines (VMs) are getting more powerful, we have been migrating many SQL Servers into VMs and recently after we did a initial requirement for our Veeam Backup DB server, we started to notice performance issues. On the VM, only half of the CPUs were 100% while the others were less than 20%. We checked to make sure there we have enough CPUs assigned in total 16 and even tried adjusting to make sure there was no MAXDOP hints on the queries. Even after checking these, the VM still only used the first 8 CPUs out of the 16 CPUs.

Renaming a vSwitch in VMWare ESXi

By Aldin Taamneh

On February 2, 2021

In Virtualization, VMware

At the ESX Console, log in and hit Alt-F1 then type unsupported and hit Enter. You won’t see the word “unsupported” appear as you type it but upon hitting Enter, you’ll be prompted for the root password. Type it in and hit Enter.

You be presented with the ESXi command prompt. The default text editor in ESXi CLI is vi:

Welcome

Category: VMware

ESXi Host TPM attestation alarm

SQL Server does not use all assigned CPUs on VM

Renaming a vSwitch in VMWare ESXi