Flavor defines the size of system disk for the current shape. For private regions, flavor can be specified when you run a new instance. If a flavor is not specified, its size is based on the selected image – 100 GB for Windows, 40 GB for Linux, 60 GB for virtual MacOS, and 300 GB for hardware MacOS. If specified, available flavors are 100 GB, 200 GB, 300 GB, and 500 GB. In Azure, the system disk has the capacity of up to 127 GB.