Access server properties for review or update
In SSMS, connect to Reporting Services using the server name (or localhost) for a native-mode server or http://<servername>/sites/<sitename> (or http://<servername>/<sitename>) for an integrated-mode server, right-click the server node in Object Explorer, and select Properties.
Suspend report execution by data source
Native mode: In Report Manager, open the Data Sources folder, click the data source link, click the Properties tab, clear the Enable This Data Source check box, type the password for the stored credentials if applicable, and click Apply.
Integrated mode: In Internet Explorer, open the Data Connections folder, point to the data source, click Edit, select ...