What is the maximum number of installed instances of SQL Server on a machine?

How many SQL Server instances can we install on a single machine?

You can install as many as 50 SQL Server instances on a Windows Server; obviously, we do not recommend this. In a Windows failover cluster, the maximum number of SQL Server instances is reduced by half if you're using shared cluster drives.

How many instances do I have SQL Server?

Here is a simple method: go to Start then Programs then Microsoft SQL Server 2005 then Configuration Tools then SQL Server Configuration Manager then SQL Server 2005 Network Configuration then Here you can locate all the instance installed onto your machine.

Can you install multiple instances of SQL Server?

You can install multiple instances of SQL Server, or install SQL Server on a computer where earlier SQL Server versions are already installed. The following SQL Server-related items are compatible with the installation of multiple instances on the same computer: Database Engine.

What is the maximum number of databases that can be created in SQL Server instance?

For SQL Server, the max number of databases you can have on a single SQL Server instance is 32,767.