Home > Storage > Unity XT > Virtualization, Cloud & Applications > Dell Unity XT: Microsoft SQL Server Best Practices > Data Reduction
The Dell Unity XT Data Reduction feature includes both deduplication and compression of 8k data blocks at an individual LUN or file system level. Since both Dell Unity XT storage and Microsoft SQL Server offer data compression, there are several factors to consider when choosing what to use. There is no single recommendation. The best choice will depend on several factors such as the contents of the database, the storage layout of the database, the amount of available CPU on both the storage and the SQL Server hosts, and the amount of I/O resources.