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Chapter 3. Hardware

This chapter describes the hardware details necessary for NFV, for example the approved hardware, hardware capacity, topology and so on.

3.1. Approved Hardware
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You can use Red Hat Technologies Ecosystem to check for a list of certified hardware, software, cloud provider, component by choosing the category and then selecting the product version.

For a complete list of the certified hardware for Red Hat OpenStack Platform, see Red Hat OpenStack Platform certified hardware.

3.2. Tested NICs
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For a list of tested NICs for NFV, see Network Adapter Support. (Customer Portal login required.)

3.3. Discovering Your NUMA Node Topology with Hardware Introspection
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When you plan your deployment, you need to understand the NUMA topology of your Compute node to partition the CPU and memory resources for optimum performance. To determine the NUMA information, you can enable hardware introspection to retrieve this information from bare-metal nodes.

Note

You must install and configure the undercloud before you can retrieve NUMA information through hardware introspection. See the Director Installation and Usage Guide for details.

Retrieving Hardware Introspection Details

The Bare Metal service hardware inspection extras (inspection_extras) is enabled by default to retrieve hardware details. You can use these hardware details to configure your overcloud. See Configuring the Director for details on the inspection_extras parameter in the undercloud.conf file.

For example, the numa_topology collector is part of these hardware inspection extras and includes the following information for each NUMA node:

  • RAM (in kilobytes)
  • Physical CPU cores and their sibling threads
  • NICs associated with the NUMA node

Use the openstack baremetal introspection data save _UUID_ | jq .numa_topology command to retrieve this information, with the UUID of the bare-metal node.

The following example shows the retrieved NUMA information for a bare-metal node: 

{
  "cpus": [
    {
      "cpu": 1,
      "thread_siblings": [
        1,
        17
      ],
      "numa_node": 0
    },
    {
      "cpu": 2,
      "thread_siblings": [
        10,
        26
      ],
      "numa_node": 1
    },
    {
      "cpu": 0,
      "thread_siblings": [
        0,
        16
      ],
      "numa_node": 0
    },
    {
      "cpu": 5,
      "thread_siblings": [
        13,
        29
      ],
      "numa_node": 1
    },
    {
      "cpu": 7,
      "thread_siblings": [
        15,
        31
      ],
      "numa_node": 1
    },
    {
      "cpu": 7,
      "thread_siblings": [
        7,
        23
      ],
      "numa_node": 0
    },
    {
      "cpu": 1,
      "thread_siblings": [
        9,
        25
      ],
      "numa_node": 1
    },
    {
      "cpu": 6,
      "thread_siblings": [
        6,
        22
      ],
      "numa_node": 0
    },
    {
      "cpu": 3,
      "thread_siblings": [
        11,
        27
      ],
      "numa_node": 1
    },
    {
      "cpu": 5,
      "thread_siblings": [
        5,
        21
      ],
      "numa_node": 0
    },
    {
      "cpu": 4,
      "thread_siblings": [
        12,
        28
      ],
      "numa_node": 1
    },
    {
      "cpu": 4,
      "thread_siblings": [
        4,
        20
      ],
      "numa_node": 0
    },
    {
      "cpu": 0,
      "thread_siblings": [
        8,
        24
      ],
      "numa_node": 1
    },
    {
      "cpu": 6,
      "thread_siblings": [
        14,
        30
      ],
      "numa_node": 1
    },
    {
      "cpu": 3,
      "thread_siblings": [
        3,
        19
      ],
      "numa_node": 0
    },
    {
      "cpu": 2,
      "thread_siblings": [
        2,
        18
      ],
      "numa_node": 0
    }
  ],
  "ram": [
    {
      "size_kb": 66980172,
      "numa_node": 0
    },
    {
      "size_kb": 67108864,
      "numa_node": 1
    }
  ],
  "nics": [
    {
      "name": "ens3f1",
      "numa_node": 1
    },
    {
      "name": "ens3f0",
      "numa_node": 1
    },
    {
      "name": "ens2f0",
      "numa_node": 0
    },
    {
      "name": "ens2f1",
      "numa_node": 0
    },
    {
      "name": "ens1f1",
      "numa_node": 0
    },
    {
      "name": "ens1f0",
      "numa_node": 0
    },
    {
      "name": "eno4",
      "numa_node": 0
    },
    {
      "name": "eno1",
      "numa_node": 0
    },
    {
      "name": "eno3",
      "numa_node": 0
    },
    {
      "name": "eno2",
      "numa_node": 0
    }
  ]
}
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3.4. Review BIOS Settings
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The following listing describes the required BIOS settings for NFV:

  • C3 Power State - Disabled.
  • C6 Power State - Disabled.
  • MLC Streamer - Enabled.
  • MLC Spacial Prefetcher - Enabled.
  • DCU Data Prefetcher - Enabled.
  • DCA - Enabled.
  • CPU Power and Performance - Performance.
  • Memory RAS and Performance Config NUMA Optimized - Enabled.
  • Turbo Boost - Disabled.
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