I've set up an alert to email me whenever the database is over a certain size. The amount is calculated by taking 80% of the total data file size. The problem I'm having is that it keeps generating a false positive alert because MS SQL seems to treat the currently used value as the total allocated space for the database data file. For example, the data file is 100MB, it's currently using 60MB, and if I enter 80MB in the alert, it generates an email alert claiming the current size is 100MB. Could it be because the data file size is set to 100MB (since autogrowth is disabled)?
What is the purpose of this alert? How much disk space is available? Is there some concern that there will not be enough disk space and capacity will be reached? Why is autogrowth disable? 100mb seems small.