Invoke PowerShell commands to multiple servers at the same time

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One of the best things of PowerShell is that you can invoke commands to multiple servers at once. This can save a lot of time when implementing new features or troubleshooting errors. The PowerShell Command that makes this possible is:

  • Invoke-Command -ComputerName [Computername1], [Computername1] -command {[PowerShell Command here]}

In this example i have installed the Windows Clustering Feature on three different servers with the following command:

  • Invoke-Command -ComputerName 2012R2-AS07, 2012R2-AS08, 2012R2-AS09 -command {Install-WindowsFeature -Name Failover-Clustering -IncludeManagementTools}

2014-10-25 15_11_29-mRemoteNG - confCons.xml

In this example i have added a Firewall rule on three different servers with the following command:

  • Invoke-Command -Computername 2012R2-AS07, 2012R2-AS08, 2012R2-AS09 -command {New-NetFirewallRule -DisplayName “SQL Server Browser Service” -Direction inbound –LocalPort 1434 -Protocol TCP -Action Allow -Profile Domain}

In this example i have specified the sxs folder:

  • Install-WindowsFeature –name NET-Framework-Core -source \\[Servername]\sxs -ComputerName 2012R2-AS07