The ability of each SQL infrastructure to accept additional information for a specified period of time exceeding the preset information system capabilities or said with other words – SQL server scalability is one of the most important elements which every SQL infrastructure must possess to meet customer requirements.
The key factor when we have SQL server scalability is the need of preventing of data lost when a failure occur. The other important thing is the work of the user to continue smoothly, even if it is possible not be noticed that there is a problem.
There are several different approaches for SQL server scalability. The most common approach is so called partitioning. In that way the database is devided to many different servers combined in a cluster. When a server broke down the other servers continue to work so the broken one is not slowing down the whole work.
SQL server scalability is getting more and more important today when the whole amount of data that is being used is growing unstoppable and the challenges for the SQL workloads is getting bigger and bigger. Almost every day the amount of data imported in a database is exceeding the preset information system capabilities and the need of SQL server scalability is clear.