Powershell to pass fixed Varibles (SCOM)

Question

Hi all,

Totally new to Powershell and would like some help.
i have script to put all Agents behind a SCOM Gateway into Maintenance Mode:

Import-Module OperationsManager

$Time = ((Get-Date).AddMinutes(10))
$ErrorActionPreference = 'SilentlyContinue'
$InstanceClass = Get-SCOMClass -Name "Microsoft.Windows.Computer"
$Agents = Get-SCOMAgent | where {$_.PrimaryManagementServerName -eq 'Gateway server name'} | Select DisplayName

Foreach($Agent in $Agents){
$Instance = Get-SCOMClassInstance -Class $InstanceClass | Where-Object {$_.DisplayName -match $Agent.DisplayName}
Start-SCOMMaintenanceMode -Instance $Instance -EndTime $Time -Comment "Server Migration." -Reason "PlannedOther"

   }

(Thanks to Leon Laude for his help).

However, I need to modify this where I want to let the user to choose which Gateway/Mgmt Server to target.

If i put my values in a variable like this:

$NthGateway="Server1"
$SthGateway="Server2"
$PrimaryMgtServer="Server2"
$SecondaryMgtServer="Server4"

Have the script ask:

"Select SCOM Mgmt/Gateway"

Press '1' for Server1"
Press '2' for Server2"
Press '3' for Server3"
Press '4' for Server4"

and from there the script will run as normal.

Can someone help me out with this?

Answer 1

This is clumsy and probably not easy to maintain, but it'll give you an idea of how to accomplish what you asked:

$Choice = ""
do {
    Write-Host "Select SCOM Mgmt/Gateway"
    Write-Host "Press '1' for Server1"
    Write-Host "Press '2' for Server2"
    Write-Host "Press '3' for Server3"
    Write-Host "Press '4' for Server4"
    Write-Host "Press 'Q to quit"
    $Choice = Read-Host "Enter your choice and press 'Enter'"
} until (1,2,3,4,'Q' -contains $Choice)

If the result is 'Q' I'd guess you'd exit the script? How your script should react to that choice is up to you.

Answer 2

Thanks Rich, I will give this a shot.