Single instance vs. multiple instances of SQL Server on a server

Forrard
March 8, 2015

Let`s consider a situation when you need to build a server with SQL Server used by multiple client applications. Here are two options to consider.

  • Single instance that host ALL the databases
  • Multiple instances with each having subset of the databases.

We`ve created a table with comparison of these two options.

Conclusion

From the table above we can see that having multiple instances of SQL Server on a single server could be beneficial only in a specific cases when you need a great degree of isolation for the environment, otherwise consider using single instance installation.

Forrard
March 8, 2015
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