{"id":12228,"date":"2012-03-14T09:00:00","date_gmt":"2012-03-14T09:00:00","guid":{"rendered":"https:\/\/aidanfinn.com\/?p=12228"},"modified":"2012-03-14T09:00:00","modified_gmt":"2012-03-14T09:00:00","slug":"windows-server-8-hyper-v-concurrent-live-migration-nic-teaming-speed-comparisons","status":"publish","type":"post","link":"https:\/\/aidanfinn.com\/?p=12228","title":{"rendered":"Windows Server 2012 Hyper-V Concurrent Live Migration &#038; NIC Teaming Speed Comparisons"},"content":{"rendered":"<p>I have the lab at work set up.\u00a0 The clustered hosts are actually quite modest, with just 16 GB RAM at the moment.\u00a0 That\u2019s because my standalone System Center host has more grunt.\u00a0 This WS2012 Beta Hyper-V cluster is purely for testing\/demo\/training.<\/p>\n<p>I was curious to see how fast Live Migration would be.\u00a0 In other words, how long would it take me to vacate a host of it\u2019s VM workload so I could perform maintenance on it.\u00a0 I used my <a href=\"https:\/\/aidanfinn.com\/?p=12190\" target=\"_blank\">PowerShell script to create a bunch of VMs<\/a> with 512 MB RAM each.<\/p>\n<p><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image002.jpg\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; margin-right: auto; padding-top: 0px; border: 0px;\" title=\"clip_image002\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image002_thumb.jpg\" border=\"0\" alt=\"clip_image002\" width=\"404\" height=\"262\" \/><\/a><\/p>\n<p><strong><span style=\"text-decoration: underline;\"> <\/span><\/strong><\/p>\n<p>Once I had that done, I would reconfigure the cluster with various different speeds and configuration fro the Live Migration network:<\/p>\n<ul>\n<li>1 * 1 GbE<\/li>\n<li>1 * 10 GbE<\/li>\n<li>2 * 10 GbE NIC team<\/li>\n<li>4 * 10 GbE NIC team<\/li>\n<\/ul>\n<p>For each of these configurations, I would time and capture network utilisation data for migrating:<\/p>\n<ul>\n<li>1 VM<\/li>\n<li>10 VMs<\/li>\n<li>20 VMs<\/li>\n<\/ul>\n<p>I had configured the 2 hosts to allow 20 simultaneous live migrations across the Live Migration network.\u00a0 This would allow me to see what sort of impact congestion would have on scale out.<\/p>\n<p>Remember, there is effectively zero downtime in Live Migration.\u00a0 The time I\u2019m concerned with includes the memory synchronisation over the network and the switch over of the VMs from one host to another.<\/p>\n<p><strong><span style=\"text-decoration: underline;\">1GbE<\/span><\/strong><\/p>\n<p><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image004.jpg\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; margin-right: auto; padding-top: 0px; border: 0px;\" title=\"clip_image004\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image004_thumb.jpg\" border=\"0\" alt=\"clip_image004\" width=\"404\" height=\"487\" \/><\/a><\/p>\n<ul>\n<li>1 VM LM<\/li>\n<li>7 seconds to LM<\/li>\n<li>Maximum transfer: 119,509,089 bytes\/sec<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li>\n<ul><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image006.jpg\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; margin-right: auto; padding-top: 0px; border: 0px;\" title=\"clip_image006\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image006_thumb.jpg\" border=\"0\" alt=\"clip_image006\" width=\"404\" height=\"262\" \/><\/a><\/ul>\n<\/li>\n<p><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image008.jpg\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; margin-right: auto; padding-top: 0px; border: 0px;\" title=\"clip_image008\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image008_thumb.jpg\" border=\"0\" alt=\"clip_image008\" width=\"404\" height=\"487\" \/><\/a><\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li>10 VMs<\/li>\n<li>40 seconds<\/li>\n<li>Maximum transfer: 121,625,798 bytes\/sec<\/li>\n<p><!--EndFragment--><\/ul>\n<p><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image010.jpg\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; margin-right: auto; padding-top: 0px; border: 0px;\" title=\"clip_image010\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image010_thumb.jpg\" border=\"0\" alt=\"clip_image010\" width=\"404\" height=\"254\" \/><\/a><\/p>\n<p><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image012.jpg\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; margin-right: auto; padding-top: 0px; border: 0px;\" title=\"clip_image012\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image012_thumb.jpg\" border=\"0\" alt=\"clip_image012\" width=\"404\" height=\"487\" \/><\/a><\/p>\n<ul>\n<li>20 VMs<\/li>\n<li>80 Seconds<\/li>\n<li>Maximum transfer: 122,842,926 bytes\/sec<\/li>\n<\/ul>\n<p>Note: Notice how the utilisation isn\u2019t increasing through the 3 tests?\u00a0 The bandwidth is fully utilised from test 1 onwards.\u00a0 1 GbE isn\u2019t scalable.<\/p>\n<p><strong><span style=\"text-decoration: underline;\">1 * 10 GbE<\/span><\/strong><\/p>\n<p><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image014.jpg\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; margin-right: auto; padding-top: 0px; border: 0px;\" title=\"clip_image014\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image014_thumb.jpg\" border=\"0\" alt=\"clip_image014\" width=\"404\" height=\"487\" \/><\/a><\/p>\n<ul>\n<li>1 VM<\/li>\n<li>5 seconds<\/li>\n<li>Maximum transfer: 338,530,495 bytes\/sec<\/li>\n<\/ul>\n<p><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image016.jpg\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; margin-right: auto; padding-top: 0px; border: 0px;\" title=\"clip_image016\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image016_thumb.jpg\" border=\"0\" alt=\"clip_image016\" width=\"404\" height=\"487\" \/><\/a><\/p>\n<ul>\n<li>10 VMs<\/li>\n<li>13 seconds<\/li>\n<li>Maximum transfer: 1,761,871,871 bytes\/sec<\/li>\n<\/ul>\n<p><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image018.jpg\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; margin-right: auto; padding-top: 0px; border: 0px;\" title=\"clip_image018\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image018_thumb.jpg\" border=\"0\" alt=\"clip_image018\" width=\"404\" height=\"487\" \/><\/a><\/p>\n<ul>\n<li>20 VMs<\/li>\n<li>21 seconds<\/li>\n<li>Maximum transfer: 1,302,843,196 bytes\/sec<\/li>\n<\/ul>\n<p>Note: See how we can push through much more data at once?\u00a0 The host was emptied in 1\/4 of the time.<\/p>\n<p><strong><span style=\"text-decoration: underline;\">2 * 10 GbE<\/span><\/strong><\/p>\n<p><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image020.jpg\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; margin-right: auto; padding-top: 0px; border: 0px;\" title=\"clip_image020\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image020_thumb.jpg\" border=\"0\" alt=\"clip_image020\" width=\"404\" height=\"487\" \/><\/a><\/p>\n<ul>\n<li>1 VM<\/li>\n<li>5 seconds<\/li>\n<li>Maximum transfer: 338,338,532 bytes\/sec<\/li>\n<\/ul>\n<p><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image022.jpg\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; margin-right: auto; padding-top: 0px; border: 0px;\" title=\"clip_image022\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image022_thumb.jpg\" border=\"0\" alt=\"clip_image022\" width=\"404\" height=\"487\" \/><\/a><\/p>\n<ul>\n<li>10 VMs<\/li>\n<li>14 Seconds<\/li>\n<li>Maximum transfer: 961,527,428 bytes\/sec<\/li>\n<\/ul>\n<p><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image024.jpg\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; margin-right: auto; padding-top: 0px; border: 0px;\" title=\"clip_image024\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image024_thumb.jpg\" border=\"0\" alt=\"clip_image024\" width=\"404\" height=\"487\" \/><\/a><\/p>\n<ul>\n<li>20 VMs<\/li>\n<li>21 seconds<\/li>\n<li>Maximum transfer: 1,032,138,805 bytes\/sec<\/li>\n<\/ul>\n<p><strong><span style=\"text-decoration: underline;\">4 * 10 GbE<\/span><\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image026.jpg\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; margin-right: auto; padding-top: 0px; border: 0px;\" title=\"clip_image026\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image026_thumb.jpg\" border=\"0\" alt=\"clip_image026\" width=\"404\" height=\"487\" \/><\/a><\/p>\n<ul>\n<li>1 VM<\/li>\n<li>5 seconds<\/li>\n<li>Maximum transfer: 284,852,698 bytes\/sec<\/li>\n<\/ul>\n<p><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image028.jpg\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; margin-right: auto; padding-top: 0px; border: 0px;\" title=\"clip_image028\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image028_thumb.jpg\" border=\"0\" alt=\"clip_image028\" width=\"404\" height=\"487\" \/><\/a><\/p>\n<ul>\n<li>10 VMs<\/li>\n<li>12 seconds<\/li>\n<li>Maximum transfer: 1,090,935,398 bytes\/sec<\/li>\n<\/ul>\n<p><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image030.jpg\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; margin-right: auto; padding-top: 0px; border: 0px;\" title=\"clip_image030\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/clip_image030_thumb.jpg\" border=\"0\" alt=\"clip_image030\" width=\"404\" height=\"487\" \/><\/a><\/p>\n<ul>\n<li>20 VMs<\/li>\n<li>21 seconds<\/li>\n<li>Maximum transfer: 1,025,444,980 bytes\/sec<\/li>\n<\/ul>\n<p><strong><span style=\"text-decoration: underline;\">Comparison of Time Taken for Live Migration<\/span><\/strong><\/p>\n<p><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/image7.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; margin-right: auto; padding-top: 0px; border: 0px;\" title=\"image\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/image_thumb7.png\" border=\"0\" alt=\"image\" width=\"404\" height=\"244\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>What this says to me is that I hit my sweet spot when I deployed 10 GbE for the Live Migration network.\u00a0 Adding more bandwidth did nothing because my virtual workload was \u201ctoo small\u201d.\u00a0 If I had more memory I could get more interesting figures.<\/p>\n<p>While 1 * 10 GbE NIC would be the sweet spot, I would use Windows Server 2012 NIC teaming for fault tolerance, and I\u2019d get 20 GbE aggregate bandwidth with 10 GbE fault tolerant bandwidth.<\/p>\n<p><strong><span style=\"text-decoration: underline;\">Comparison of Bandwidth Utilisation<\/span><\/strong><\/p>\n<p><a href=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/image8.png\"><img loading=\"lazy\" decoding=\"async\" style=\"background-image: none; padding-left: 0px; padding-right: 0px; display: block; float: none; margin-left: auto; margin-right: auto; padding-top: 0px; border: 0px;\" title=\"image\" src=\"https:\/\/aidanfinn.com\/wp-content\/uploads\/2012\/03\/image_thumb8.png\" border=\"0\" alt=\"image\" width=\"404\" height=\"244\" \/><\/a><\/p>\n<p>I have no frickin\u2019 idea how to interpret this data.\u00a0 Maybe I need more tests.\u00a0 I only did 1 run of each test.\u00a0 Really I should have done 10 of each test and averaged\/standard deviation or something.\u00a0 But somehow, across all three the 10 GbE combination tests, data throughput dropped once we had 20 GbE.\u00a0 Very curious!<\/p>\n<p><strong><span style=\"text-decoration: underline;\">Summary<\/span><\/strong><\/p>\n<p>The days of 1 GbE are numbered.\u00a0 Hosts are getting more dense, and you should be implementing these hosts with 10 GbE networking for their Live Migration networks.\u00a0 This data shows how in my simple environment with 16 GB RAM hosts, I can do host maintenance in no time.\u00a0 With VMM Dynamic Optimization, I can move workloads in seconds.\u00a0 Imagine accidentally deploying 192 GB RAM hosts with 1 GbE Live Migration networks.<\/p>\n<div id=\"scid:0767317B-992E-4b12-91E0-4F059A8CECA8:9978563e-37a1-4dbe-a02d-128cf62ec28a\" class=\"wlWriterEditableSmartContent\" style=\"margin: 0px; display: inline; float: none; padding: 0px;\">Technorati Tags: <a rel=\"tag\" href=\"http:\/\/technorati.com\/tags\/Windows+Server+2012\">Windows Server 2012<\/a>,<a rel=\"tag\" href=\"http:\/\/technorati.com\/tags\/Hyper-V\">Hyper-V<\/a>,<a rel=\"tag\" href=\"http:\/\/technorati.com\/tags\/Networking\">Networking<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>I have the lab at work set up.\u00a0 The clustered hosts are actually quite modest, with just 16 GB RAM at the moment.\u00a0 That\u2019s because my standalone System Center host has more grunt.\u00a0 This WS2012 Beta Hyper-V cluster is purely for testing\/demo\/training. I was curious to see how fast Live Migration would be.\u00a0 In other &hellip; <a href=\"https:\/\/aidanfinn.com\/?p=12228\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Windows Server 2012 Hyper-V Concurrent Live Migration &#038; NIC Teaming Speed Comparisons&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"_wpcom_ai_launchpad_first_post":false,"footnotes":""},"categories":[20],"tags":[181,80,118],"class_list":["post-12228","post","type-post","status-publish","format-standard","hentry","category-hyper-v","tag-hyper-v","tag-networking","tag-windows-server-2012"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"I have the lab at work set up. 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