Expanding EC2 disk space and adding monitoring with no down time

Rehan van der Merwe

Whoops, your production server ran out of space. This is just a quick guide on how to fix it without downtime.

First of all, this happened because an EC2 instance does not report disk usage nor memory usage to Cloud Watch. This might be because every operating system has its own special way of monitoring these metrics. If you ever tried to get these values from the system programmatically, you understand. So let’s start by resizing the EBS Volume for the EC2 instance.

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