2.2. Preparing to install a cluster that uses SR-IOV


You must configure RHOSP before you install a cluster that uses SR-IOV on it.

When installing a cluster using SR-IOV, you must deploy clusters using cgroup v1. For more information, Enabling Linux control group version 1 (cgroup v1).

중요

cgroup v1 is a deprecated feature. Deprecated functionality is still included in OpenShift Container Platform and continues to be supported; however, it will be removed in a future release of this product and is not recommended for new deployments.

For the most recent list of major functionality that has been deprecated or removed within OpenShift Container Platform, refer to the Deprecated and removed features section of the OpenShift Container Platform release notes.

2.2.1. Creating SR-IOV networks for compute machines

If your Red Hat OpenStack Platform (RHOSP) deployment supports single root I/O virtualization (SR-IOV), you can provision SR-IOV networks that compute machines run on.

참고

The following instructions entail creating an external flat network and an external, VLAN-based network that can be attached to a compute machine. Depending on your RHOSP deployment, other network types might be required.

Prerequisites

  • Your cluster supports SR-IOV.

    참고

    If you are unsure about what your cluster supports, review the OpenShift Container Platform SR-IOV hardware networks documentation.

  • You created radio and uplink provider networks as part of your RHOSP deployment. The names radio and uplink are used in all example commands to represent these networks.

Procedure

  1. On a command line, create a radio RHOSP network:

    $ openstack network create radio --provider-physical-network radio --provider-network-type flat --external
  2. Create an uplink RHOSP network:

    $ openstack network create uplink --provider-physical-network uplink --provider-network-type vlan --external
  3. Create a subnet for the radio network:

    $ openstack subnet create --network radio --subnet-range <radio_network_subnet_range> radio
  4. Create a subnet for the uplink network:

    $ openstack subnet create --network uplink --subnet-range <uplink_network_subnet_range> uplink
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