File Server Migration to SharePoint Online

Hi Jehad_Abu_Sultan ,

1. I always split file server files into the business teams which then use a Team site template. Communication site template is more for your Intranets or portals  so less relevant for file share migrations but there may be requirements for it.  So the answer is it depends on how you will be using the sites. 

2. Depends what you copy in, SharePoint Online doesn't know about anything on your file server. If you use a migration tool whatever the tool copies across will exist in SharePoint. 

3. Potentially something you could do with a Migration tool but not attempted it my self.

4. If you only have 3.75 TB of space available then you will not be able to make any edits to files or additions to folders when you hit that limit.  You will need to delete content or buy more space. 

5. I always split the content into published content(Intranet) and Team content(business team). You then have an information architecture to get from your Intranet to the Team sites. Each business Team would normally have a Team site in SharePoint. Departments can be either Intranet or Team site or both dependant on how users in departments work together. 

Jehad_Abu_Sultan  - edited to include answers.