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Microsoft SQL Server - license model of SQL Server Datacenter edition

SQL Datacenter 2008 R2 | CPU (Full Virtualization; Mobility)

Example

ESX host with 4 dual-core CPUs with hyperthreading (no SQL Server installation).

Currently hosted environments:

  • VM1 with 1 processor (SQL Server Installation) – enabled
  • VM2 with 1 processor (SQL Server Installation) – enabled
  • VM3 with 1 processor (SQL Server Installation) – enabled
  • VM4 with 1 processor (SQL Server Installation) – disabled

Formerly hosted environments:

  • VM5 with 1 processor (SQL Server Installation) – enabled – moved to another host 30 days ago
  • VM6 with 1 processor (SQL Server Installation) – enabled – moved to another host 95 days ago

License requirement:

  • Currently there are 3 enabled virtual machines on the host = 3 x (1 CPU / 2 threads) (hyperthreading; for VM rounded up to a whole number) = 3 licenses
  • Virtual machine was run on the host 30 days ago = 0 licenses (license mobility)
  • Virtual machine was run on the host 95 days ago = 0 licenses (minimum license entitlement has expired)

License requirement total = 3 licenses

Environments hosted additionally later:

  • VM7 with 1 processor (SQL Server Installation) – enabled
  • VM8 with 1 processor (SQL Server Installation) – enabled

License requirement:

  • Currently there are 5 enabled virtual machines on the host = 5 x (1 CPU / 2 threads) (hyperthreading; for VM rounded up to a whole number) = 5 licenses
  • Virtual machine was run on the host 30 days ago = 0 licenses (license mobility)
  • Virtual machine was run on the host 95 days ago = 0 licenses (minimum license entitlement has expired)

Actual license requirement total = 5 licenses

Limited to maximum number = 4 licenses (number of physical processors)

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