A push notification is a way for an app to send you a message or to notify you without you actually opening the app. The notification is pushed to you without you needing to do anything. You can think of it like the app sending you a text message, although notifications can take on several different forms. One common push notification takes the form of a red circle with a number in it that appears on the corner of the app's icon.
This is the main step that you need to take for creating new instance in installed SQL Server 2008 R2. Select option Named Instance from the given option and provide the name as per your wish for new Instance. In my case i have given name as MYSQL and clicked Next button.
VSS writer-Each VSS-aware application installs its own VSS writer to a computer during the initial installation. VSS requestor-Any application that needs to quiesce data for capture can play the role of VSS requestor. VSS provider-The provider creates and manage the shadow copies of data on the system. Here's how VSS works: The VSS requestor announces that it needs to create a server snapshot. Prior to creating that snapshot, it queries the server to determine which VSS writers have been installed.