Prerequisites
Hardware : GCP
Google Account
We can add and remove the disks using GCP cloud shell also.
Open GCP Console.
Click on Activate cloud shell.

$ gcloud compute disks create [diskname] –size [disk-size] –type [disk-type] –zone [zone-name]
To create disk.

Click on Authorize.

$ gcloud compute instances attach-disk [instance-name] –disk [disk-name]
To Attach the disk.

$ gcloud compute disks resize [disk-name] –size [disk-size]
To resize the disk. Type y for resize.
NB: We can increase the size. But we can’t downgrade it.

$ gcloud compute instances detach-disk [instance-name] –disk=[disk-name]
To detach/remove the disk.
