Display Disk Usage

[StevenGann]

I use Dynmap and Chunky on my Minecraft servers so disk usage ends up being a concern as maps and render data quickly fill disks and need to be constrained or relocated to prevent errors.

It would be useful if an Application included a disk usage statistic including

• Size of InstanceData folder
• Size of disk InstanceData is on
• Amount of free space on that disk

[yumao233]

I also want to add this function, but due to factors such as cross-platform, there is no perfect solution for the time being.

Because MCSManager does not have to be started by Docker, it can also be a very simple process startup method.