Powershell NLB drain stop node
https://technet.microsoft.com/en-us/library/ee817138.aspx
Stop-NlbClusterNode -HostName SRV09 -Drain -Timeout 10
Start-NlbClusterNode -HostName SRV09
Get-NlbClusterNodehttps://technet.microsoft.com/en-us/library/ee817138.aspx
Stop-NlbClusterNode -HostName SRV09 -Drain -Timeout 10
Start-NlbClusterNode -HostName SRV09
Get-NlbClusterNode