Files up to 1 GB can be handled by SFTP-SSH actions that allow chunking, whereas files up to 50 MB can be handled by SFTP-SSH actions that do not enable chunking. Although the default chunk size is 15 MB, it may be changed dynamically, starting at 5 MB and progressively growing to the 50 MB maximum, depending on parameters such as network latency, server response time, and so on.
By default, Azure Blob Storage activities may read and write files of up to 50 MB in size. Azure Blob Storage activities allow message chunking for files bigger than 50 MB but up to 1024 MB. The Get blob content operation employs chunking implicitly.