Final answer:
Yes, you still incur charges for the storage attached to a stopped VM because the persistent storage continues to use physical space on the cloud provider's infrastructure.
Step-by-step explanation:
If you stop a Virtual Machine (VM), you will generally still incur charges for the storage attached to the VM. This is because while the VM's computational resources are not in use when it's stopped, any persistent storage, like hard disks or SSDs that contain the VM's operating system, applications, and data, will continue to reserve physical space on the cloud provider's infrastructure.
Therefore, cloud service providers typically charge for the storage regardless of the VM's operational status. The only charges you would not incur when a VM is stopped are for the actual computation time and possibly network resources depending on how the cloud provider structures their pricing.