A notable difference is that Azure file shares have a 5 TB limit for the whole share, and a 1 TB limit on the size of any given file [1], while EFS has no limit

A notable difference is that Azure file shares have a 5 TB limit for the whole share, and a 1 TB limit on the size of any given file [1], while EFS has no limit on the size of the file system, and a 52 TB limit on the size of any given file. [2] Disclosure, work for AWS. [1] https://azure.microsoft.com/en-us/documentation/articles/storage-scalability-targets/#scalability-targets-for-blobs-queues-tables-and-files https://azure.microsoft.com/en-us/documentation/articles/sto... [2] http://docs.aws.amazon.com/efs/latest/ug/limits.html http://docs.aws.amazon.com/efs/latest/ug/limits.html