ESXi 6.x CBT issue

VMware has released a KB article regarding a new issue affecting ESXi 6.0 and 6.0 Update 1. This issue affects backups utilizing change block tracking (CBT). When running incremental virtual machine backups, backup applications typically rely on the vSphere API call QueryDiskChangedAreas() to determine the changed sectors. This issue occurs due to a problem with CBT…

Bye Bye vSphere C# Client

Since the introduction of the Web Client new features to vSphere would be available only through the Web Client, with the most well known example of VSAN. The performance of the Web Client was not great at all which made it a big obstacle for using the Web Client instead of the old vSphere C# Client.…

VSPHERE 6 UPGRADE SEQUENCE

VMware has released a KB article with the correct sequence the update your vSphere 6 environment. The article shows the supported update sequence for vSphere and other compatible/supported VMware solutions such as NSX, SRM, etc. Update sequence for vSphere 6.0 and its compatible VMware products (2109760) The article also provides a overview of the compatible…

Not default TCP/IP stack and vmkping

This week I was testing jumbo frames in our lab environment and had some issues with the vmkping command and not default TCP/IP stack. In our lab environment we use separate TCP/IP stacks for the vMotion and Provisioning VMKernel interfaces. With the vmkping command it’s possible to pass this TCP/IP stack as an argument. However,…

Renew ESXi 6 host certificate

If you are replacing your ESXi certificates with CA certificates, the best method is to make your VCSA a subordinate CA and allow it to sign certificates for the ESXi host. VMware has released a KB article on how to make your VCSA a subordinate CA. When configured the VCSA as a subordinate CA you…