##START MAINTENANCE
$servername = $env:computername
$servers = Get-exchangeserver |? {($_.Name -ne $servername) -and ($_.Ise15orlater -eq $True)} | select fqdn
$target = Get-random $servers
Write-Host "Maintenance mode server is $($servername)"
Write-Host "Transport redirect target server is $($target.fqdn)"

Write-Host "Draining Transport and UM services"
Set-ServerComponentState $servername -Component HubTransport -State Draining -Requester Maintenance
Set-ServerComponentState $servername -Component UMCallRouter -State Draining -Requester Maintenance

Write-Host "Start Sleep for 30 seconds"
Start-Sleep -Seconds 30
Get-Queue

Write-Host "Starting Maintenance Mode"
Write-Host "Moving Active Databases"
Move-ActiveMailboxDatabase -server $servername -MountDialOverride Lossless
Suspend-Clusternode $servername

cd $ExScripts
.\StartDagServerMaintenance.ps1 -serverName $servername -MoveComment Maintenance -OverrideMinimumTwoCopies

Write-Host "Redirecting messages to $($target.fqdn)"
Redirect-Message -Server $servername -Target $target.fqdn -confirm:$false

Write-Host "Set server to ServerWideOffline"
Set-ServerComponentState $servername -Component ServerWideOffline -State Inactive -Requester Maintenance

##CHECK THAT SERVER IS IN MAINTENANCE
Write-Host "##########" -ForegroundColor Yellow
Write-Host "Service Components should be inactive" -ForegroundColor Yellow
Get-ServerComponentState $servername | FT Component,State -Autosize
Write-Host "Server should be blocked" -ForegroundColor Yellow
Get-MailboxServer $servername | FL DatabaseCopyAutoActivationPolicy
Write-Host "Clusternode state should be paused" -ForegroundColor Yellow
Get-ClusterNode $servername | FL
Write-Host "Non-Shadow Queues should be empty" -ForegroundColor Yellow
Get-Queue -server $servername