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We have VMWare hosts with 2 cpus each (that are hyperthreading). We freed up some licensing (2 core licenses) for SQL server and want to upgrade from 4 to 6 cores.

From my understanding, for SQL Server, you want even number of cores per socket. This leads to the SQL best practice of 3 sockets @ 2 cores each for the VM.

Are there performance implications or concerns to/with VMWare by allocating 3 vSockets on a 2 socket host?

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After consulting with some SQL Server experts, the best option was 1 socket, 6 cores.

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  • Did the experts include any logical reasons for this best option? – chicks May 4 '17 at 20:28

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