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Answer by Kev Riley

Using LUN4 for TempDB is a good idea.It's always useful to separate Tempdb from user db where possible.

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Answer by Håkan Winther

I agree with Kev, TempDB is often under heavy load and should be separated from the rest of the files. One thing to remember with Luns and SAN, is that even if you have different Luns you cannot be...

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Answer by Mark Allison

The best thing to do is to TEST in your environment. Do a server-side trace on a typical production workload and then replay this in a test environment with and without the tempdb LUN and benchmark...

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