The Daily WTF

Carrol C just joined IniTech. They were hiring for someone who could help them tame their cloud costs. There’s a lot of money being spent on AWS. Management had bought in on the “it’s cheaper than on-prem”, and were starting to wonder why that promise wasn’t being fulfilled.

After a little settling in period, Carrol had his credentials for their AWS environment, and started digging around just to familiarize himself with the infrastructure. This environment had started as an on-prem system that got migrated to the cloud, so the infrastructure was mostly a collection of virtual-machines using attached virtual disks- EBS- for storing data.

And that was the first red flag. Each VM was using between 160–200GB of EBS. CPU usage was hovering at around 15%, and RAM was barely a blip, but the quantity of disk was getting a more than a little out of hand. Carrol scribbled a

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