Lenovo G8264 Product Manual

Also see for RackSwitch G8264: Installation guide Product guide Application guide Command reference Installation guide

Contents

All active linksTraffic load balanced across all links using Layer 3 ECMP64 RackSwitch G8052 Leaf Switches for 2560 non-blocking 1 GbE ports48x 10/100/1000 server-facing ports each4x 10GBASE-SR fiber uplinks eachFour RackSwitch G8264spine switches for non-blocking coreFigure 6 shows the 2560-node logical design.Figure 6. The 2560-node logical designVirtual Fabric configuration with System x servers using the Emulex Virtual Fabric AdaptersThe following example describes an Virtual Fabric implementation:Virtual Fabric for System x is built using industry standards and is the ideal solution for customers that requiremore than two NICs per server. Over the past couple of years many clients have seen their I/O requirementsper server increase anywhere from 4 to 6 to 8 or even more NICs per server, especially with the adoption ofvirtualization. What Virtual Fabric does is provide clients with the ability to leverage a virtual NIC approachleveraging 10 Gb Ethernet technology to help reduce cost and complexity while also achieving betterperformance and more flexibility. It provides the following benefits:Reduced costsAcquisition and operating by using fewer adapters, cables, and upstream switch ports.Reduced complexityFewer items to manage, based standards, making management easier with the addition of highavailability and better security.Better performanceA significant amount more I/O bandwidth per server and lower latency than traditional 1 Gb Ethernet.FlexibilityThe ability to carve up a dual-port 10 Gb adapter into 4 - 8 virtual NICs and create virtual pipesbetween the adapter and switch for higher availability and security. Not only can customersdynamically allocate I/O bandwidth to each virtual NIC, Virtual Fabric also provides the ability tochange those allocations as needed. For example, a customer might have one configuration forworkload during the day and another during the evenings. Virtual Fabric has the ability to make thosechanges on the fly without downtime.Virtual Fabric is designed in partnership with Emulex. This solution requires the following components:Emulex 10 Gb Virtual Fabric Adapters for System xFor more details, seeEmulex 10Gb Virtual Fabric Adapter II and III Family for System x , TIPS0844 at:http://www.redbooks.ibm.com/abstracts/tips0844.htmlRackSwitch G8264 18