VMware · Virtualization · Automation
I'm Karl Erik Filip Modén — Filip to everyone — an infrastructure engineer with more than five years designing, automating and un-breaking VMware environments. This is where I write down what actually works — vSphere deep dives, PowerCLI automation, home lab experiments and the occasional 2 a.m. war story.
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 guide to vSAN storage policies in VMware Cloud Foundation: what each setting means, how objects land on hosts, and how much capacity common policies consume.
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.
beginner
A from-zero guide to VMware vSAN for people who have never touched hyperconverged infrastructure. Five parts, from 'what even is HCI' to running a cluster with confidence — building, breaking and operating it yourself.
5 parts
View guideintermediate
A practical map of VMware Cloud Foundation 9: its core components, operating model, and why a VCF fleet is more than a collection of vCenters.
6 parts
View guideadvanced
An advanced series on how ESXi actually schedules CPU. Part 1: why %RDY beats every other counter, what co-scheduling really costs wide VMs, and how to read esxtop like the scheduler sees it.
1 part
View guide5+ yrs
running enterprise virtualization
vSphere estates from a handful of hosts to multi-datacenter clusters with strict SLAs.
1000s
of VMs automated end-to-end
Provisioning, patching and compliance driven by PowerCLI.
0.5 rack
of home lab, always on fire (intentionally)
Every migration, upgrade and failure scenario gets rehearsed at home before it touches production.