Jenkins running on AWS EC2 running out of disk space despite upgrading the memory size

Question

I have Jenkins running on an ec2 instance. The main build server had gone offline due to "Out of Disk space". I upgraded the ec2 instance to a larger instance type (moving from a .large instance with 4GB of memory to a .xlarge with 8GB of memory)

However, after upgrading the instance to have more memory, the Free Disk Space still showed the same amount, and instead I reduced the Free Space Threshold to enable the master node to get back online. (As outlined here: how to solve jenkins 'Disk space is too low' issue? )

Why did the Free Disk Space remain the same despite increasing the memory space of the instance? Is there a way that I can allocate more memory to the Jenkins via some server settings?

Answer 1

RAM and Disk Space are not the same thing. You will need to resize the EBS volume, then expand the partition/filesystem to use the additional space.

Expanding the partition/filesystem is OS-specific. Here is the procedure for Linux. I am assuming you are running Linux on your server based on the screenshot.

https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-modify-volume.html