Infiniband Howto
This post describes how to change the port type eth ib in mellanox adapters when using mlnx ofed or inbox drivers. Setting up vm via kvm virt manager is out of the scope of this post refer to virt manager documentation.
How To Setup Infiniband Network
Getting started with infiniband on redhatcentos linux.
Infiniband howto. By default port configuration is set to ib. The procedures and examples below are performed on the mellanox ethernet sx1710 switch system but they are transferable to other switch platforms as well. Since both roce and mlx4en use the ethernet port of the adapter one of the drivers must control the port state.
In the example above the mlx4en driver controls the ports state. Many infiniband switches have a built in subnet manager that can be enabled. This post shows the procedure to enable sr iov on connectx 3 and connectx 3 pro adapter cards in infiniband mode.
Mellanox connectx 3 adapter card vpi may be equipped with one or two ports that may be configured to run infiniband or ethernet. For further information please refer to howto configure rocev2 community post. Howto install and configure mellanox driver for windows environment description this post is basic and meant for beginners who wish to install and perform basic configuration for windows driver winof for mellanox adapter cards.
Infiniband is available on both ibm x86 and power systems servers running linux. Unfortunately the well known ofed a software stack from the openfabrics alliance focuses on rpm based distributions. Opensm package in debian squeeze and up.
The infiniband technology is featured by open source components and drivers. When using multiple switches you can enable a subnet manager on all of them for redundancy. The infiniband how to topics are short procedures designed to provide you with just the steps you need to complete the task.
It is applicable for both ethernet roce or infiniband link layer based networks. This post is basic and meant for beginners who want to get started with mellanox switches ethernet or infiniband and perform basic configuration tasks. Associating infiniband ports to ethernet ports.
This howto shows a way to create a working infiniband setup with ip over infiniband and iscsi over infiniband. If your switch does not have a subnet manager or if you are not using a switch then you need to run a subnet manager on your nodes. Ibutils infiniband diags formerly openib diags there are various utilities in here for accessing the health of your infiniband fabric and testing end to end connectivity.
This post is based on howto setup rdma connection using inbox driver rhel ubuntu with some additions and updates. Ibm infiniband adapters can be used to create a high bandwidth low latency communication network for your applications. This is a good primer for getting familiar with using infiniband with redhatcentos linux.
This post shows several ways to test that rdma is running smoothly and supplies several troubleshooting guidelines.
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