⟩ Tell us can we hot add CPU to SQL server?
Yes. Adding CPUs can occur physically by adding new hardware, logically by online hardware partitioning, or virtually through a virtualization layer. Starting with SQL Server 2008, SQL Server supports hot add CPU.
• Requires hardware that supports hot add CPU.
• Requires the 64-bit edition of Windows Server 2008 Datacenter or the Windows Server 2008 Enterprise Edition for Itanium-Based Systems operating system.
• Requires SQL Server Enterprise.
• SQL Server cannot be configured to use soft NUMA
Once the CPU is added just run RECONFIGURE then sql server recognizes the newly added CPU.
