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Disabling VMware Distributed Resource Scheduler for a Virtual Machine
The following procedure disables VMware Distributed Resource Scheduler (DRS) for a Skylight orchestrator virtual machine. This is required to prevent migration of live orchestrator virtual machines on the VMware ecosystem.
Virtual Machine Override
This configuration will prevent all vMotion migrations that would normally be triggered by DRS.
To override the virtual machine
In vSphere, log in as the administrator, then go to Inventory ▶ Hosts and Clusters.
Select the cluster where the Skylight orchestrator virtual machine is running.
Click Configure ▶ VM Overrides, then click Add.
Select the Skylight orchestrator virtual machine you want to override, then click Next.
Override DRS completely for this virtual machine by selecting Disabled for the DRS automation level.
Click Finish.
Modifying the Administrator Role
To modify the administrator role
In vSphere, go to Administration ▶ Roles.
Select the Administrator Role, then click on Clone.
Name the new role accordingly, and add a description. This helps administration of the vSphere.
Select the new cloned role and click on Edit.
Navigate to the Resource permissions, then unselect Migrate powered on virtual machine.
Click Save.
Go to Inventory ▶ Hosts and Clusters, then navigate to the Skylight orchestrator virtual machine.
Click Permissions.
Select the Administrators user group, then click Edit.
Select the new Administrator Role you created, then click OK.
Once complete, no vCenter Administrators will have the permission to migrate the Skylight orchestrator virtual machine while it is running. Migrating is still possible when the virtual machine is powered off.
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