Azure increases the maximum size and performance of Azure Disks. This extends the maximum size of the disks from 1,024 GB to 4,095 GB and enables customers to add 4x more disk storage capacity per VM. Data Box supports a maximum of 512 containers or shares in the cloud. The top-level directories within the user share become containers or Azure file shares in the cloud. Data Box usage capacity may be less than 80 TB because of ReFS metadata space consumption.