Blog
Notes from the cognitive layer.
Engineering deep-dives, FinOps math, and the occasional opinion from the people building XamOps.
FinOps·May 28, 2026
Your AWS Bill Jumped 40% Last Month: Here's How to Actually Investigate It
A step-by-step checklist for DevOps engineers to diagnose and fix unexpected AWS cost spikes, before finance comes knocking again.
Read · 9 min
Spot·May 28, 2026
EC2 Spot Instances in Production: How to Stop Fearing Interruptions and Save 70%
A practical guide for DevOps engineers on running Spot instances safely in production, with the five patterns that make interruptions a non-event.
Read · 10 min
FinOps·May 28, 2026
Disk Rightsizing: The Cost Saving Everyone Ignores
Three moves that eliminate 30–40% of cloud storage waste: unattached volumes, gp2 migration, and over-provisioned disks. With the discipline to prevent it from coming back.
Read · 7 min