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7 standalone posts
A practical ESXi troubleshooting guide covering common host, network, storage, management, and performance faults, with esxcli commands to identify the failing layer before making a change.
A practical introduction to esxtop: how to read CPU, memory, storage and network pressure on an ESXi host, and the views worth using during a real incident.
A production cluster ground to a halt during what should have been a routine host reboot. Here's how to read vSAN resync behavior, what actually causes resync storms, and the knobs that matter.
The real test of infrastructure-as-code isn't whether apply works — it's whether destroy does. How I structure Terraform for vSphere so entire lab environments are disposable.
Provisioning scripts are easy. Provisioning scripts that handle vCenter quirks, half-failed deployments and auditors are not. These are the PowerCLI patterns I keep reusing.
Lifecycle Manager makes upgrades look like one button. The work is everything around the button — driver validation, boot device health, and knowing your rollback story before you need it.
Most NSX microsegmentation projects stall because they start with 'segment everything'. Notes on a phased model that shipped — scope, rule design, and the org problems that matter more than the technical ones.