Maintenance Plan Index Rebuild Gotcha

If you’re anything like me, you probably have a tendency to read what you think is on the page instead of what is actually there. Here’s a little gotcha that I discovered today when setting up the Rebuild Index task in a maintenance plan:

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As you can see, the percentage they are asking for is the amount of free space to leave on the index pages, and NOT the fillfactor for the index pages. Had I read this screen more carefully yesterday, I would have saved myself and my colleagues much pain and suffering today (a database with 90% free space in the indexes doesn’t perform well AT ALL…lol). 🙁