Our previous blog explored the basics of SR-IOV, this write-up will highlight how SR-IOV works in Red Hat Enterprise Virtualization. Red Hat Enterprise Virtualization 3.6 enabled SR-IOV to supercharge the network throughput process. This process is easily explained by looking at an example of a logical network in Red Hat Enterprise Virtualization Manager (RHEV-M).
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Many IT organizations have embraced virtualization technologies to leverage well known benefits such as server consolidation, reduced costs, scalability, high utilization rates and so on. Although these benefits are great, sometimes they can cause performance issues due to the overwhelming usage of I/O. One method of reducing performance issues is to enable SR-IOV capabilities that allow a PCIe device to appear to be multiple separate physical PCIe devices. The purpose of SR-IOV is to provide isolation of resources that enable the scalability of VMs and to enable a near-bare metal
Continue reading “Single Root I/O Virtualization (SR-IOV) Primer”