Disk size can be increased without having to reboot

[vannya]

Globaltap.com offers the following - disk size can be increased without having to reboot. I wonder how can it be?

[Google]

It means that globaltap.com allows their customers to increase disk space size very easily.
The company focuses on delivering various hosting plans and provides constant and uninterrupted hosting and support services, so you can rely on this company.