SQL Server groups are defined by SQL Server and can contain SQL Server users or other SQL Server groups. Groups can be members of roles, but roles cannot be members of groups.

database mirroring endpoint An endpoint is a SQL Server object that enables SQL Server to communicate over the network. To participate in database mirroring and/or [!INCLUDE ssHADR] a server instance ...

Use the New Availability Group Dialog Box (SQL Server Management Studio) [!INCLUDE SQL Server] This topic contains information about how to use the New Availability Group dialog box of [!INCLUDE ...