Toggle the NIC Multi-Queue Property

You can turn the NIC Multi-Queue feature on or off for your Virtual Machines (VMs). This topic explains how to perform the operation using the Data Center Designer (DCD). You can also manage NIC Multi-Queue using the IONOS Cloud API.

Note:

• Automatic VM Restart: Setting NIC Multi-Queue on triggers an automatic VM restart to apply the configuration changes.

• Hot-Plug NIC Support: You can add network interfaces to a running VM without system restart or downtime. For optimal performance, new NICs automatically default to number queues that match the number of provisioned CPU threads.

• Scaling Queue Count: When adding CPU threads to leverage increased parallelism, the queue count must be updated through a VM restart:

  • Restart the VM using the Cloud API or the Data Center Designer (DCD).

  • An Operating System (OS)-level restart is insufficient and will not update the queue configuration. Queue count changes require a platform-initiated restart to reload the NIC driver with the updated configuration.

To toggle the feature status of a VM, follow these steps:

1. In the DCD, go to Menu > Virtual Data Centers.

2. Select the data center that contains the VM.

3. Select the VM and click Settings in the Inspector pane.

4. Select or clear NIC Multi-Queue to turn the feature on or off.

Select or clear NIC Multi-Queue on a VM

5. Select PROVISION CHANGES to apply the changes.

Result: The status of the NIC Multi-Queue feature is updated. The server will automatically restart to apply the configuration changes.