vSphere Admin scripts
Some scripts that I use to manage vSphere Turn off SSH if running Count the number of VMs that are in each vSphere cluster List the 10 largest VMs per cluster Per RAM Example output Export to CSV as well…
Tag Resilience
ESXi Lockdown Mode
ESXi Lockdown Mode is a security feature in VMware ESXi that restricts direct access to the ESXi host, allowing access only through vCenter Server. This feature is designed to enhance security by preventing unauthorized users from modifying the ESXi host…
UEFI Secure Boot
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…
Resize VM through Code
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…
Securing vCenter and ESXi Hosts: A VMware Architect’s Guide
In the evolving threat landscape, vCenter Server and ESXi hosts remain high-value targets in the data center. As the foundational control and compute planes of your virtual infrastructure, securing them is essential. Whether you’re operating in a regulated environment or…
Data Store housekeeping
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…
Deploy application via code, and if a VM fails, redeploy
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…
Replication with Dell Recovery Point
Previously, I posted about the replication of two HCIs using array-based or vSphere-based replication. This article addresses a third way or an addition to the two previously mentioned options. Dell Recovery Point for VMs (RP4VMs) synchronizes virtual machines to destination…