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I've inherited multiple servers, each containing one database and one instance of SQL Server 2008 R2 SP2. Each server is set to use 12GB min/max memory and has Lock Pages in Memory enabled. The servers have a total of 16GB memory, so 4GB is left for the OS and anything else.
My question is - Is this best practice? Should the servers be set to the same value for min/max memory or will this cause performance issues? I'm investigating a sudden increase in CPU usage across multiple servers and want to rule this out if possible.