Manage SR-IOV NICs
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In the current software version, ARM hosts do not support SR-IOV NIC management. |
SR-IOV NIC management virtualizes a physical NIC into multiple VF interfaces, and each VF interface has its own virtual PCIe channel. These virtual PCIe channels share the PCIe channel of the physical NIC. A VM can use one or multiple VF interfaces. A VM can access a VF interface directly through its own VF driver without the intervention of the hypervisor, greatly improving the network throughput performance.
Restrictions and guidelines
SR-IOV is available only when the physical NIC supports SR-IOV.
Physical NICs enabled with SR-IOV do not support network rate limiting.
The NICs in an SR-IOV resource pool must have the same driver type.
An SR-IOV NIC mounted to a started VM cannot be removed.
VMs that are mounted with SR-IOV NICs support HA failure migration.
If the SR-IOV NIC mounted to a VM is not added to an SR-IOV resource pool, the VM does not support offline migration.
To clone or convert a VM mounted with an SR-IOV NIC to a template, make sure the VM is in shutdown state.
Add an SR-IOV iRS service
On the top navigation bar, click Resources.
From the left navigation pane, select Compute > Host Pool Name > Cluster Name.
Click More, and then select SR-IOV NICs.
Click the
icon to refresh the SR-IOV NIC list.
Select a resource pool in the list, and then click Add to create a new SR-IOV iRS service. For more information, see Manage iRS services.
Edit an SR-IOV iRS service
On the top navigation bar, click Resources.
From the left navigation pane, select Compute > Host Pool Name > Cluster Name.
Click More, and then select SR-IOV NICs.
Click the
icon to refresh the SR-IOV NIC list.
Click Edit in the Actions column for the target resource pool, and edit the parameters as needed. For more information, see Manage iRS services.
Delete an SR-IOV iRS service
On the top navigation bar, click Resources.
From the left navigation pane, select Compute > Host Pool Name > Cluster Name.
Click More, and then select SR-IOV NICs.
Click the
icon to refresh the SR-IOV NIC list.
Click Delete in the Actions column for the target resource pool.
In the dialog box that opens, click OK.
Remove a resource from an SR-IOV iRS service
On the top navigation bar, click Resources.
From the left navigation pane, select Compute > Host Pool Name > Cluster Name.
Click More, and then select SR-IOV NICs.
Click the
icon to refresh the SR-IOV NIC list.
Click the name of the target resource pool, and then click the Resource Details tab.