{"id":12609,"date":"2012-05-31T09:00:00","date_gmt":"2012-05-31T08:00:00","guid":{"rendered":"https:\/\/aidanfinn.com\/?p=12609"},"modified":"2012-05-31T09:00:00","modified_gmt":"2012-05-31T08:00:00","slug":"powershell-script-to-create-a-windows-server-2012-converged-fabric","status":"publish","type":"post","link":"https:\/\/aidanfinn.com\/?p=12609","title":{"rendered":"PowerShell Script To Create A Converged Fabric For Clustered Windows Server 2012 Hyper-V Host"},"content":{"rendered":"

Note: This post was originally written using the Windows Server “8” (aka 2012) Beta.\u00a0 The PowerShell cmdlets have changed in the Release Candidate and this code has been corrected to suit it.<\/em><\/p>\n

After the posts of the last few weeks, I thought I\u2019d share a script that I am using to build a converged fabric hosts in the lab.\u00a0 Some notes:<\/p>\n

    \n
  1. You have installed Windows Server 2012 on the machine.<\/li>\n
  2. You are either on the console or using something like iLO\/DRAC to get KVM access.<\/li>\n
  3. All NICs on the host will be used for the converged fabric.\u00a0 You can tweak this.<\/li>\n
  4. This will not create a virtual NIC in the management OS (parent partition or host OS).<\/li>\n
  5. You will make a different copy of the script for each host in the cluster to change the IPs.<\/li>\n
  6. You could strip out all but the Host-Parent NIC to create converged fabric for standalone host with 2 or 4 * 1 GbE NICs<\/li>\n<\/ol>\n

    And finally \u2026. MSFT has not published best practices yet.\u00a0 This is still a beta release.\u00a0 Please verify that you are following best practices before you use this script.<\/p>\n

    OK\u2026. here we go.\u00a0 Watch out for the line breaks if you copy & paste:<\/p>\n

    write-host “Creating virtual switch with QoS enabled”
    \nNew-VMSwitch “ConvergedNetSwitch” -MinimumBandwidthMode weight -NetAdapterName “ConvergedNetTeam” -AllowManagementOS 0<\/p>\n

    write-host “Setting default QoS policy”
    \nSet-VMSwitch “ConvergedNetSwitch” -DefaultFlowMinimumBandwidthWeight 10<\/p>\n

    write-host “Creating virtual NICs for the management OS”
    \nAdd-VMNetworkAdapter -ManagementOS -Name “Host-Parent” -SwitchName “ConvergedNetSwitch”
    \nSet-VMNetworkAdapter -ManagementOS -Name “Host-Parent” -MinimumBandwidthWeight 10<\/p>\n

    Add-VMNetworkAdapter -ManagementOS -Name “Host-Cluster” -SwitchName “ConvergedNetSwitch”
    \nSet-VMNetworkAdapter -ManagementOS -Name “Host-Cluster” -MinimumBandwidthWeight 10<\/p>\n

    Add-VMNetworkAdapter -ManagementOS -Name “Host-LiveMigration” -SwitchName “ConvergedNetSwitch”
    \nSet-VMNetworkAdapter -ManagementOS -Name “Host-LiveMigration” -MinimumBandwidthWeight 10<\/p>\n

    Add-VMNetworkAdapter -ManagementOS -Name “Host-iSCSI1” -SwitchName “ConvergedNetSwitch”
    \nSet-VMNetworkAdapter -ManagementOS -Name “Host-iSCSI1” -MinimumBandwidthWeight 10<\/p>\n

    #Add-VMNetworkAdapter -ManagementOS -Name “Host-iSCSI2” -SwitchName “ConvergedNetSwitch”
    \n#Set-VMNetworkAdapter -ManagementOS -Name “Host-iSCSI2” -MinimumBandwidthWeight 15<\/p>\n

    write-host “Waiting 30 seconds for virtual devices to initialise”
    \nStart-Sleep -s 30<\/p>\n

    write-host “Configuring IPv4 addresses for the management OS virtual NICs”
    \nNew-NetIPAddress -InterfaceAlias “vEthernet (Host-Parent)” -IPAddress 192.168.1.51 -PrefixLength 24 -DefaultGateway 192.168.1.1
    \nSet-DnsClientServerAddress -InterfaceAlias “vEthernet (Host-Parent)” -ServerAddresses “192.168.1.40”<\/p>\n

    New-NetIPAddress -InterfaceAlias “vEthernet (Host-Cluster)” -IPAddress 172.16.1.1 -PrefixLength “24”<\/p>\n

    New-NetIPAddress -InterfaceAlias “vEthernet (Host-LiveMigration)” -IPAddress 172.16.2.1 -PrefixLength “24”<\/p>\n

    New-NetIPAddress -InterfaceAlias “vEthernet (Host-iSCSI1)” -IPAddress 10.0.1.55 -PrefixLength “24”<\/p>\n

    #New-NetIPAddress -InterfaceAlias “vEthernet (Host-iSCSI2)” -IPAddress 10.0.1.56 -PrefixLength “24”<\/p>\n

    That will set up the following architecture:<\/p>\n

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

    QoS is set up as follows:<\/p>\n