vSphere Distributed Resource Scheduler (DRS) requirements

Before using vSphere DRS, the following requirements must be met:

  • vCenter Server needs to be installed.
  • CPUs in ESXi hosts must be compatible.
  • to use DRS for load balancing, hosts in the DRS cluster must be part of a vMotion migration network.
  • all hosts should use shared storage, with volumes accessible by all hosts.
  • shared storage needs to be large enough to store all virtual disks for the VM.
  • DRS works best if the VMs meet vSphere vMotion requirements, listed here.
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