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titleNetwork isolation at rack level

Virtual datacenters use a single rack, so all the virtual machines of all virtual appliances on the same rack are deployed on the same rack. Read more about Rack Isolation

If there aren't any virtual machines deployed for the current datacenter then the most suitable rack determined by the VLAN Allocation Algorithm is used.

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  • When editing a machine you can oversubscribe the resources (discovery manager sets CPU to 1 but you can change it to 2).
  • See Workload Level Rule for information on how to modify the oversubscription parameters.

Machines in State MANAGED

  • Machines that are not in the state Managed are not used Compute in Datacenters are not used and the health of a machine is checked before selecting it, only MANAGED machines are considered. The physical machine and Hypervisor are ready to deploy virtual machines.

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When deploying a virtual appliance or a single virtual machine the user may see the following errors related to the scheduler logic.

Type ____________

Description

Solutions __________________________


Not enough resources


In the virtual appliance's datacenter, there is no physical machine with enough free resources for the virtual machine's requirements.

  • Add more physical machines.
  • Increase the resources available in a physical machine.
  • Power off some virtual machines.


Resource allocation limits exceeded (Hard limits)


The Resource Allocation Limits configured for the infrastructure do not allow the total resource utilization with the virtual machine requirements.

  • Power off some virtual machines or change the configured limits (0 for unlimited).
  • Increase the hard limits for the enterprise.


Resource allocation limits exceeded (Soft limits)


The Resource Allocation Limits configured for the infrastructure allow the total resource utilization with the virtual machine requirements but alerts users that their resources are reaching the hard limit

  • Power off some virtual machines or change the configured limits (0 for unlimited).
  • Increase the soft limits for the enterprise.