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affinity64 I/O mask Server Configuration Option

Topic Status: Some information in this topic is preview and subject to change in future releases. Preview information describes new features or changes to existing features in Microsoft SQL Server 2016 Community Technology Preview 2 (CTP2).

The affinity64 I/O mask binds SQL Server disk I/O to a specified subset of CPUs, similar to the affinity I/O mask option. Use affinity I/O mask to bind the first 32 processors, and use affinity64 I/O mask to bind the remaining processors on the computer. If you reconfigure the affinity64 I/O mask, you must restart the instance of SQL Server. This option is only visible on the 64-bit version of SQL Server.

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