The file share option in azure can be used for several configurations. Say you want a azure share on your desktop or build a DFS in azure and use this in your private cloud. or build a file share witness for your cluster, and in the Windows Server technical preview there is the Cloud witness. But this can be done in windows server 2008 also. there is no change but only the method on how to do this and maybe the cluster Support.
Azure Files is built on the same technology as the Blob, Table, and Queue Services, which means Azure Files is able to leverage the existing availability, durability, scalability, and geo redundancy that is built into our platform.
The File share can be used for several Scenarios
“Lift and Shift” applications
Azure Files makes it easier to “lift and shift” applications to the cloud that use on-premise file shares to share data between parts of the application. To make this happen, each VM connects to the file share (see “Getting Started” below) and then it can read and write files just like it would against an on-premise file share.
Shared Application Settings
A common pattern for distributed applications is to have configuration files in a centralized location where they can be accessed from many different virtual machines. Such configuration files can now be stored in an Azure File share, and read by all application instances. These settings can also be managed via the REST interface, which allows worldwide access to the configuration files.
An Azure File share can also be used to save diagnostic files like logs, metrics, and crash dumps. Having these available through both the SMB and REST interface allows applications to build or leverage a variety of analysis tools for processing and analyzing the diagnostic data.
When developers or administrators are working on virtual machines in the cloud, they often need a set of tools or utilities. Installing and distributing these utilities on each virtual machine where they are needed can be a time consuming exercise. With Azure Files, a developer or administrator can store their favorite tools on a file share, which can be easily connected to from any virtual machine.
Again this is just a preview Just be sure to understand the limitations of Azure Files the most important are:
- 5TB per share
- Max file size 1TB
- Up to 1000 IOPS (of size 8KB) per share
- Up to 60MB/s per share of data transfer for large IOs
- SMB 2.1 support only
Here are the Links to the How to create a azure file share and build your desktop share
Build the Windows Server Cluster Azure Quorum Cloud Witness in just a few Steps.
And yes you can build several configurations with the Azure File share Cloud Storage is there to use it. there is only one thing with the Cloud you will need an internet connection to your servers. unless you already use expressroute.