In order to modify the resources of a Cloud server, you need to do the following:
In this example we will add disk space to an AIX cloud server.
Login into the Tivoli Service Automation Manager.
After that, a couple of commands need to be run in the target server in order to get the changes applied.
chvg -g rootvg
With that, you should be able to see the new available space in the server with lsvg rootvg.
In AIX, you can assign new space to a file system using the chfs command, like this:
Change file system size:
chfs -a size=[-/+]N[GM] [/filesystem]
chfs -a size=+200M /dev/fslv02
Filesystem size changed to 1835008