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Comment: Migrated to Confluence 4.0

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Limitation - 3 - Hot add vcpu will fail If the number of cores per socket is not 1 and virtual machine hardware version=7. Further Reading 

DB Changes

  • Introducing a global config - enable.dynamic.scale.vm. Enables/Diables dynamically scaling a vm. This can be used to turn off the feature and is available at the zone level. By default the feature is turned off for upgrade reasons.
  • Introducing a global config - scale.retry. By default the value = 2. This is for number of tries before failing the scaling.
  • A new column in "vm_template" table named "dynamically_scalable" of type tinyint(1) and the value is 1 if template contains XS/VMWare tools inorder to support dynamic scaling of VM cpu/memory otherwise 0
  • "user_vm_details" table holds key value pair with key "enable.dynamic.scaling" and value is true if VM contains XS/VMWare tools inorder to support dynamic scaling of VM cpu/memory otherwise false

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