Azure blob storage is billed based to how much data you use. So you can have an 1023 GB disk but if you use only 20 GB you will be billed for 20 GB. But, 🙂 , if you write more data, lets say 50 GB and then you erase them, the free space will not automatically be released.
sandrinodimattia, https://github.com/sandrinodimattia, released an app that allows to check the actual size of a VHD on Azure. It works on both ASM and ARM.
You can download the executable at: https://github.com/sandrinodimattia/WindowsAzure-VhdSize/releases
The command is:
wazvhdsize.exe “storageaccountname” “storageaccountaccesskey==” containername
Source: https://github.com/sandrinodimattia/WindowsAzure-VhdSize
Pantelis Apostolidis is a Cloud Solutions Architect at Microsoft and an ex Microsoft Azure MVP. For the last 15 years, Pantelis has been involved to major cloud projects in Greece and abroad, helping companies to adopt and deploy cloud technologies, driving business value. He is entitled to a lot of Microsoft Expert Certifications, demonstrating his proven experience in delivering high quality solutions. He is an author, blogger and he is acting as a spokesperson for conferences, workshops and webinars. He is also an active member of several communities as a moderator in azureheads.gr and autoexec.gr. Follow him on Twitter @papostolidis.
