Database Size

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The initial size for the database should be large enough so it should never or very rarely need to grow. An initial size of 1 to 4 GB should be enough for most installations. Make sure autogrowth is enabled on the database and the autogrowth size is specified as a size (e.g. 500MB) and not as a percentage.
If a more specific size is required, the following formula may be used as a guide.
Database Size Formula:
((# of Projects * # of Subjects * # of Intervals * # of Variables * 100)
+ (# of Projects * # of Subjects * # of Project Variables * 100)) * 1.1