Simultaneously Tasks Decrease/Increase

Hi theire,

I'am little bit lost.   i need to clear Several Datastores to activate  ATS on it. During Week i start with this Code. so only 1 migration at a time.

on weekend i wanted to plan to raise up to 4 maximum.

i'am not quit sure how to manage that. is theire a Easy solution for it?

Happy if someone could help me for it .

$Dsource= "DS01"

$Ddest = "DS02"

$vms = get-datastore $DSource |get-vm

foreach ($vm in $vms){

get-vm $vm |move-vm -datastore (Get-datastore $Ddest)

}

Many thx

Max