{"id":17433,"date":"2014-11-03T15:14:05","date_gmt":"2014-11-03T15:14:05","guid":{"rendered":"https:\/\/aidanfinn.com\/?p=17433"},"modified":"2014-11-03T15:14:06","modified_gmt":"2014-11-03T15:14:06","slug":"tee14-scripted-demo-1-guest-aware-numa","status":"publish","type":"post","link":"https:\/\/aidanfinn.com\/?p=17433","title":{"rendered":"TEE14 Scripted Demo 1 – Guest-Aware NUMA"},"content":{"rendered":"

As promised at Teched Europe 2014, I am sharing each of the PowerShell scripts that I used to drive my feature demos in my session<\/a>. The first of these scripts focuses on non-uniform memory access, or NUMA.<\/p>\n

\"image\"<\/a><\/p>\n

All of my demo scripts work in this kind of fashion:<\/p>\n

    \n
  1. Clean up the lab<\/li>\n
  2. Create demo environment variables for hosts, clusters, machines<\/li>\n
  3. Write-Host \u201csome cmdlet and parameters\u201d<\/li>\n
  4. Do the cmdlet and some parameters<\/li>\n
  5. Optionally display the results<\/li>\n
  6. Do more stuff<\/li>\n
  7. Clean up the lab.<\/li>\n<\/ol>\n

    Most of the code in these scripts is fluff, purely for display and lab prep\/reset.<\/p>\n

    In this script I:<\/p>\n

      \n
    1. Clean up the lab, ensure the VM (spans NUMA nodes cos of vCPU count) is just the way I want it.<\/li>\n
    2. Get the NUMA config of the host.<\/li>\n
    3. Get the NUMA config of the VM.<\/li>\n
    4. Show that the VM is not NUMA aligned.<\/li>\n
    5. Retrieve the VM\u2019s advanced NUMA configuration.<\/li>\n
    6. Shutdown the VM, set it to use static memory, and restart it.<\/li>\n
    7. Query the VMs NUMA alignment, and see that it is aligned now, but we have use static memory.<\/li>\n
    8. Reset the lab back to the start.<\/li>\n<\/ol>\n

      CLS
      $DemoVM1="NUMA"<\/p>\n

      #Reset the demo
      Stop-VM $DemoVM1 -Force | Out-Null
      Set-VMMemory $DemoVM1 -DynamicMemoryEnabled:$true -StartupBytes 512MB -MaximumBytes 8GB -MinimumBytes 256MB
      Start-VM $DemoVM1 | Out-Null<\/p>\n

      #Start the demo
      Read-Host "Start the demo"
      Write-Host "`nGet-VMHostNumaNode"
      Get-VMHostNumaNode
      Write-Host "`nThe host has 2 NUMA nodes. Large VMs should also have 2 NUMA nodes for best performance" -foregroundcolor red -backgroundcolor yellow<\/p>\n

      Read-Host "`nCheck the NUMA and Dynamic Memory configuration of the VM $DemoVM1"
      Write-Host "`nGet-VM $DemoVM1 | Select Name, ProcessorCount, MemoryMaximum, DynamicMemoryEnabled, NumaAligned, NumaNodesCount, NumaSocketCount"
      Get-VM $DemoVM1 | Select Name, ProcessorCount, MemoryMaximum, DynamicMemoryEnabled, NumaAligned, NumaNodesCount, NumaSocketCount | Out-Host
      Write-Host "`nGuest NUMA isn’t alligned and the 24 vCPU virtual machine has only 1 NUMA node" -foregroundcolor red -backgroundcolor yellow<\/p>\n

      Read-Host "`nGet the advanced NUMA configuration of the VM $DemoVM1"
      Write-Host "`nGet-VMProcessor $DemoVM1 | Select Count, MaximumCountPerNumaNode, MaximumCountPerNumaSocket`n"
      Get-VMProcessor $DemoVM1 | Select Count, MaximumCountPerNumaNode, MaximumCountPerNumaSocket
      Write-Host "`nGet-VMMemory $DemoVM1 | Select MaximumPerNumaNode`n"
      Get-VMMemory $DemoVM1 | Select MaximumPerNumaNode
      Write-Host "`nThis is the NUMA node configuration that Hyper-V can present to the VM via Guest-Aware NUMA" -foregroundcolor red -backgroundcolor yellow<\/p>\n

      Read-Host "`nDisable Dynamic Memory for the VM $DemoVM1 & restart it"
      Stop-VM $DemoVM1 -Force
      Write-Host "`nSet-VMMemory $DemoVM1 -DynamicMemoryEnabled:$false -StartupBytes 8GB"
      Set-VMMemory $DemoVM1 -DynamicMemoryEnabled:$false -StartupBytes 8GB
      Start-VM $DemoVM1
      Write-Host "`nGet-VM $DemoVM1 | Select Name, ProcessorCount, MemoryMaximum, DynamicMemoryEnabled, NumaAligned, NumaNodesCount, NumaSocketCount`n"
      Get-VM $DemoVM1 | Select Name, ProcessorCount, MemoryMaximum, DynamicMemoryEnabled, NumaAligned, NumaNodesCount, NumaSocketCount | Out-Host
      Write-Host "`nThe VM now is NUMA aligned and has a NUMA configuration that matches the host hardware" -foregroundcolor red -backgroundcolor yellow<\/p>\n

      #End the demo
      Read-Host "`nEnd the demo"
      Stop-VM $DemoVM1 -Force
      Set-VMMemory $DemoVM1 -DynamicMemoryEnabled:$true -StartupBytes 512MB -MaximumBytes 8GB -MinimumBytes 256MB
      Start-VM $DemoVM1 | Out-Null<\/p>\n

      Technorati Tags: Hyper-V<\/a>,Windows Server 2012 R2<\/a>,Virtualisation<\/a>,PowerShell<\/a>,Scripting<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"

      As promised at Teched Europe 2014, I am sharing each of the PowerShell scripts that I used to drive my feature demos in my session. The first of these scripts focuses on non-uniform memory access, or NUMA. All of my demo scripts work in this kind of fashion: Clean up the lab Create demo environment … Continue reading “TEE14 Scripted Demo 1 – Guest-Aware NUMA”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","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":[181,87,189,195,120],"class_list":["post-17433","post","type-post","status-publish","format-standard","hentry","category-hyper-v","tag-hyper-v","tag-powershell","tag-scripting","tag-virtualisation","tag-windows-server-2012-r2"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t