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Diffstat (limited to 'docs/release/installation/virtualinstall.rst')
| -rw-r--r-- | docs/release/installation/virtualinstall.rst | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/docs/release/installation/virtualinstall.rst b/docs/release/installation/virtualinstall.rst index 5da2ee3c..61fc4be6 100644 --- a/docs/release/installation/virtualinstall.rst +++ b/docs/release/installation/virtualinstall.rst @@ -8,7 +8,7 @@ undercloud VM. In addition to the undercloud VM a collection of VMs or more compute nodes for a non-HA Deployment) will be defined for the target OPNFV deployment. The part of the toolchain that executes IPMI power instructions calls into libvirt instead of the IPMI interfaces on baremetal -servers to operate the power managment. These VMs are then provisioned with +servers to operate the power management. These VMs are then provisioned with the same disk images and configuration that baremetal would be. To Triple-O these nodes look like they have just built and registered the same way as bare metal nodes, the main difference is the use of a libvirt driver for the power @@ -22,6 +22,25 @@ Installation Guide - Virtual Deployment This section goes step-by-step on how to correctly install and provision the OPNFV target system to VM nodes. +Special Requirements for Virtual Deployments +-------------------------------------------- + +In scenarios where advanced performance options or features are used, such +as using huge pages with nova instances, DPDK, or iommu; it is required to +enabled nested KVM support. This allows hardware extensions to be passed to +the overcloud VMs, which will allow the overcloud compute nodes to bring up +KVM guest nova instances, rather than QEMU. This also provides a great +performance increase even in non-required scenarios and is recommended to be +enabled. + +During deployment the Apex installer will detect if nested KVM is enabled, +and if not, it will attempt to enable it; while printing a warning message +if it cannot. Check to make sure before deployment that Nested +Virtualization is enabled in BIOS, and that the output of ``cat +/sys/module/kvm_intel/parameters/nested`` returns "Y". Also verify using +``lsmod`` that the kvm_intel module is loaded for x86_64 machines, and +kvm_amd is loaded for AMD64 machines. + Install Jumphost ---------------- @@ -32,7 +51,7 @@ Running ``opnfv-deploy`` You are now ready to deploy OPNFV! ``opnfv-deploy`` has virtual deployment capability that includes all of -the configuration nessesary to deploy OPNFV with no modifications. +the configuration necessary to deploy OPNFV with no modifications. If no modifications are made to the included configurations the target environment will deploy with the following architecture: |