CmdID / PowerShell / Cmdlets / Set
Set-RDVirtualDesktopConcurrency
Sets the number of virtual desktops that RDS can create in parallel. Windows Server PowerShell reference
From the Windows Server PowerShell reference 5 parameters Its page in the reference
Parameters
-AllocationSpecifies a collection of values (key/value pair) that specify the concurrency factor for each RD Virtualization Host server.-BatchSizeSpecifies the batch size.-ConcurrencyFactorSpecifies the number of virtual desktops that RDS can create in parallel.-ConnectionBrokerSpecifies the Remote Desktop Connection Broker (RD Connection Broker) server for a remote desktop deployment.-HostServerSpecifies the name of the server that hosts the session.