There are three locations which require to share a database. Users in all three locations must be able to update the data (Read & Write Access). However, each location should be able to operate independently in case of network disconnection between locations.
Furthermore, each location must have server level and/or database level redundancy. If possible, the secondary copy of the database in each location should be readable so reporting and backup can be processed using the secondary copy.
Currently, there are 6 servers allocated to this project. (2 servers in each location).
Is it possible to achieve this using SQL Server Standard Licenses?
What features are required to achieve this functionality?