How to find the list of databases are used by a SharePoint 2010 Farm, including content databases, service application databases and configuration database.
If you want to know databases in your farm instance, use Get-SPDatabase as suggested by another answer.
If you want to understand what databases sharepoint creates and what exactly sharepoint stores in them, check Databases That Support SharePoint 2010 Products
Try SharePoint PowerShell: Get-SPDatabase
Why not simply using Central Admin... :-) (works even if you do NOT have access to either the physical server (console) or databases server.
Central Admin -> Upgrade and Migration -> Review Database Status. By pasting /_admin/DatabaseStatus.aspx at your CA url.
Rgds, Arjan Vos
You can this resource. It's very clear from size, name, attribute to capability of backup/restore by other tools.http://technet.microsoft.com/en-us/library/cc678868.aspx