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In OSX Mountain Lion, I run a Windows Server 2003 VM solely to run SQL Sever 2008. It chews up a lot of battery life. Is there some way to automatically pause the VM when the SQL Server is idle and restart it again when requested (kind of like wake-on-lan)?

Update: I can get it to pause when idle by setting the power setting in Windows to put the system to sleep. However, I cannot get it to start back up again.

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Automatically? Or manually? – Canadian Luke Nov 3 '12 at 18:25
Automatically. Ideally it would start it when it was requested and pause it when idle for some number of minutes. Question updated to be clearer. – Kyle Heironimus Nov 5 '12 at 17:36

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