Issue with CPU Affinity Configuration on a SQL Server VM with 30 vCPUs

• abdalah.mehdoini

  Ten Centuries

  Points: 1015

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  November 24, 2024 at 5:42 pm

  #4488494

  Hello ,

  I'm having an issue with a SQL Server VM that has 30 vCPUs allocated. However, in the server affinity configuration, when I check the "Affinity Mask", it detects only 19 vCPUs.

  Can someone explain to me why there is a difference between the number of vCPUs allocated to the VM and the number detected in the affinity configuration? Is this a configuration issue or is there a limitation of SQL Server or the VM itself

  

  Thank you for your help

  Thanks

• frederico_fonseca

  SSCoach

  Points: 16167

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  November 24, 2024 at 7:55 pm

  #4488528

  what does the SQL Logs say about licensing and allocated cores? Could be limited by license applied.

  and what is the VM type - some config there may be wrong - but never seen sql not use the cpus except by license restrictions.

• Kerr5

  Newbie

  Points: 1

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  November 29, 2024 at 6:47 am

  #4490722

  Thank you for sharing this information...