• size /1024 / 1024 AS gbsize

    That is not the right computation to get gb. "size" is the number/count of 8K pages. So, to get gb from size, you need to do this calc:

    CAST(size / 128.0 / 1024 AS int) AS gbsize

    SQL DBA,SQL Server MVP(07, 08, 09) "It's a dog-eat-dog world, and I'm wearing Milk-Bone underwear." "Norm", on "Cheers". Also from "Cheers", from "Carla": "You need to know 3 things about Tortelli men: Tortelli men draw women like flies; Tortelli men treat women like flies; Tortelli men's brains are in their flies".