Tag Archives: EVC

VMware vSphere 6.7 introduces Skylake EVC Mode

To simplify vMotion across CPU generations VMware has introduced Enhanced vMotion Compatibility (EVC). EVC automatically configures server CPUs with Intel FlexMigration or AMD-V Extended Migration technologies to be compatible with older servers. In vSphere 6.7 a now EVC mode has been introduced.

Intel Skylake Generation
Compared to Intel "Broadwell " EVC mode, the Skylake EVC mode exposes additional CPU features:

  • Advanced Vector Extensions 512
  • Persistent Memory Support Instructions
  • Protection Key Rights
  • Save Processor Extended States with Compaction
  • Save Processor Extended States Supervisor

For more information about EVC Modes see Intel CPU EVC Matrix

VMware vSphere 6.5 introduces Broadwell EVC Mode

To simplify vMotion across CPU generations VMware has introduced Enhanced vMotion Compatibility (EVC). EVC automatically configures server CPUs with Intel FlexMigration or AMD-V Extended Migration technologies to be compatible with older servers. In vSphere 6.5 a now EVC mode has been introduced. Read more »

VMware vSphere 6.0 introduces Haswell EVC Mode

To simplify vMotion across CPU generations VMware has introduced Enhanced vMotion Compatibility (EVC). EVC automatically configures server CPUs with Intel FlexMigration or AMD-V Extended Migration technologies to be compatible with older servers. In vSphere 6.0, the "Intel Haswell Generation" EVC mode has been introduced.

vsphere-6-haswell-gen-evc

I've updated my Intel CPU EVC Matrix to reflect the latest changes:
Intel_EVC_Processor_matrix_2015

AMD CPU EVC Matrix (VMware Enhanced vMotion Compatibility)

Enhanced vMotion Compatibility (EVC) simplifies vMotion compatibility across CPU generations. EVC automatically configures server CPUs with AMD-V Extended Migration technologies to be compatible with older servers. I've created a table with a quick overview about EVC Modes with their appropriate CPU Series and Codenames used by AMD to denote their CPUs.

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Intel CPU EVC Matrix (VMware Enhanced vMotion Compatibility)

Intel uses a model named "Tick-Tock" to follow every microarchitectural change with a die shrink. This results in having two EVC baselines for every microarchitecture. I've created a small table with a quick overview about EVC Modes with their appropriate CPU Series and Codenames used by Intel to denote their CPUs. I've also included additional Codenames that may be used by Intel for special processors. The upcoming Haswell architecture is named, but not yet available or supported by VMware.

This post is updated regularly. [Last Update: April 2018]

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