VMware Admission Control is a component of VMware vSphere High Availability (HA) that guarantees enough resources are allocated within a cluster to satisfy failover needs. It prohibits adding virtual machines (VMs) to a cluster if this would compromise the cluster’s…
In a previous article, I described how to activate UEFI Boot, which will disable the ESXi OS from loading 3rd party packages. What is execInstalledOnly enforcement? execInstalledOnly will ensure that non-signed scripts can be run against the ESXi. Important to…
UEFI Secure Boot is a platform feature within the UEFI specification that ensures the system boots using only the software trusted by the hardware manufacturer. Secure Boot provides a verification mechanism in which the firmware validates a boot loader before executing…
A prevalent task for a VMware admin is to power down VM X and add more CPU or RAM to the VM. Infrastructure as code enthusiasts suggest that any operation performed manually should be automated. Let us look at how…
Ever wondered how you can give a user access to some artifacts within a vCenter and then deny the same user access to other artifacts? The access hierarchy in vCenter is role-based, leveraging permissions applied at various object levels in…
In today’s world of Virtualization, we love to thin provision and overcommit. Be vary of the limitations…. When a vSphere datastore becomes full, several issues can arise that may impact virtual machine (VM) operations and the overall performance of the…
This is part 1. Imagine a scenario where you deploy an application environment, and when you face a challenge with your environment or decide to upgrade a software component, you destroy it and redeploy it. I catch myself way too…
Another great tool to automate configurations in vSphere is Red Hat Ansible Automation Platform. Red Hat delivers two versions, a Community version and a Enterprise Version. The innovation happens in the community and the best features are perfected and added…
