How many default instance can you have on SQL Server?

How many instances can a SQL Server have?

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. Only one of the SQL Server instances on a server can be the default instance.

Can a SQL Server have multiple instances?

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. Analysis Services.

What is SQL Server default instance?

What is Default Instance. If there is no SQL server installed yet, a default instance will be created unless the user specifies a named instance. There can only be one default instance. The default instance name is MSSQLSERVER.

Can a server have multiple instances?

You can create more than one server instance on your system. Each server instance has its own instance directory, and database and log directories. Multiply the memory and other system requirements for one server by the number of instances planned for the system.