$user="administrator"
$pass="a-bloody-password"
$vCenterServer="192.168.111.111"


$MailtoAddresses= "email1@gmail.com","email2@gmail.com"


#----Connect to the vCenter Server

Connect-VIServer -Server $vCenterServer -Protocol https -User $user -Password $pass -WarningAction SilentlyContinue | Out-Null

$sessionManager = Get-View -Id $global:DefaultVIServer.ExtensionData.Content.SessionManager
$sessionManager.SetLocale(“en-US”)

#----These Alarms will send a single email message and not repeat ----
$LowPriorityAlarms="Timed out starting Secondary VM",`
"No compatible host for Secondary VM",`
"Virtual Machine Fault Tolerance vLockStep interval Status Changed",`
"Migration error",`
"Exit standby error",`
"License error",`
"Virtual machine Fault Tolerance state changed",`
"VMKernel NIC not configured correctly",`
"Unmanaged workload detected on SIOC-enabled datastore",`
"Host IPMI System Event Log status",`
"Host Baseboard Management Controller status",`
"License user threshold monitoring",`
"Datastore capability alarm",`
"Storage DRS recommendation",`
"Storage DRS is not supported on a host",`
"Datastore is in multiple datacenters",`
"Insufficient vSphere HA failover resources",`
"License capacity monitoring",`
"Virtual machine cpu usage",`
"Virtual machine memory usage",`
"License inventory monitoring"

#----These Alarms will repeat every 24 hours----
$MediumPriorityAlarms=`
"Virtual machine error",`
"Health status changed alarm",`
"Host cpu usage",`
"Host memory usage",`
"Cannot find vSphere HA master agent",`
"vSphere HA host status",`
"Host service console swap rates",`
"vSphere HA virtual machine monitoring action",`
"vSphere HA virtual machine monitoring error"


#----These Alarms will repeat every 2 hours----
$HighPriorityAlarms=`
"Host connection and power state",`
"Host processor status",`
"Host memory status",`
"Host hardware fan status",`
"Host hardware voltage",`
"Host hardware temperature status",`
"Host hardware power status",`
"Host hardware system board status",`
"Host battery status",`
"Status of other host hardware objects",`
"Host storage status",`
"Host error",`
"Host connection failure",`
"Cannot connect to storage",`
"Network connectivity lost",`
"Network uplink redundancy lost",`
"Network uplink redundancy degraded",`
"Thin-provisioned volume capacity threshold exceeded",`
"Datastore cluster is out of space",`
"vSphere HA failover in progress",`
"vSphere HA virtual machine failover failed",`
"Datastore usage on disk"

#---Set Alarm Action for Low Priority Alarms---
Foreach ($LowPriorityAlarm in $LowPriorityAlarms) {
    Get-AlarmDefinition -Name "$LowPriorityAlarm" | Get-AlarmAction -ActionType SendEmail| Remove-AlarmAction -Confirm:$false
    Get-AlarmDefinition -Name "$LowPriorityAlarm" | New-AlarmAction -Email -To @($MailtoAddresses)
    Get-AlarmDefinition -Name "$LowPriorityAlarm" | Get-AlarmAction -ActionType SendEmail | New-AlarmActionTrigger -StartStatus "Green" -EndStatus "Yellow"
    #Get-AlarmDefinition -Name "$LowPriorityAlarm" | Get-AlarmAction -ActionType SendEmail | New-AlarmActionTrigger -StartStatus "Yellow" -EndStatus "Red"  # This ActionTrigger is enabled by default.
    Get-AlarmDefinition -Name "$LowPriorityAlarm" | Get-AlarmAction -ActionType SendEmail | New-AlarmActionTrigger -StartStatus "Red" -EndStatus "Yellow"
    Get-AlarmDefinition -Name "$LowPriorityAlarm" | Get-AlarmAction -ActionType SendEmail | New-AlarmActionTrigger -StartStatus "Yellow" -EndStatus "Green"
}

#---Set Alarm Action for Medium Priority Alarms---
Foreach ($MediumPriorityAlarm in $MediumPriorityAlarms) {
    Get-AlarmDefinition -Name "$MediumPriorityAlarm" | Get-AlarmAction -ActionType SendEmail| Remove-AlarmAction -Confirm:$false
    Set-AlarmDefinition "$MediumPriorityAlarm" -ActionRepeatMinutes (60 * 24) # 24 Hours
    Get-AlarmDefinition -Name "$MediumPriorityAlarm" | New-AlarmAction -Email -To @($MailtoAddresses)
    Get-AlarmDefinition -Name "$MediumPriorityAlarm" | Get-AlarmAction -ActionType SendEmail | New-AlarmActionTrigger -StartStatus "Green" -EndStatus "Yellow"
    Get-AlarmDefinition -Name "$MediumPriorityAlarm" | Get-AlarmAction -ActionType SendEmail | Get-AlarmActionTrigger | Select -First 1 | Remove-AlarmActionTrigger -Confirm:$false
    Get-AlarmDefinition -Name "$MediumPriorityAlarm" | Get-AlarmAction -ActionType SendEmail | New-AlarmActionTrigger -StartStatus "Yellow" -EndStatus "Red" -Repeat
    Get-AlarmDefinition -Name "$MediumPriorityAlarm" | Get-AlarmAction -ActionType SendEmail | New-AlarmActionTrigger -StartStatus "Red" -EndStatus "Yellow"
    Get-AlarmDefinition -Name "$MediumPriorityAlarm" | Get-AlarmAction -ActionType SendEmail | New-AlarmActionTrigger -StartStatus "Yellow" -EndStatus "Green"
}

#---Set Alarm Action for High Priority Alarms---
Foreach ($HighPriorityAlarm in $HighPriorityAlarms) {
    Get-AlarmDefinition -Name "$HighPriorityAlarm" | Get-AlarmAction -ActionType SendEmail| Remove-AlarmAction -Confirm:$false
    Set-AlarmDefinition "$HighPriorityAlarm" -ActionRepeatMinutes (60 * 2) # 2 hours
    Get-AlarmDefinition -Name "$HighPriorityAlarm" | New-AlarmAction -Email -To @($MailtoAddresses)
    Get-AlarmDefinition -Name "$HighPriorityAlarm" | Get-AlarmAction -ActionType SendEmail | New-AlarmActionTrigger -StartStatus "Green" -EndStatus "Yellow"
    Get-AlarmDefinition -Name "$HighPriorityAlarm" | Get-AlarmAction -ActionType SendEmail | Get-AlarmActionTrigger | Select -First 1 | Remove-AlarmActionTrigger -Confirm:$false
    Get-AlarmDefinition -Name "$HighPriorityAlarm" | Get-AlarmAction -ActionType SendEmail | New-AlarmActionTrigger -StartStatus "Yellow" -EndStatus "Red" -Repeat
    Get-AlarmDefinition -Name "$HighPriorityAlarm" | Get-AlarmAction -ActionType SendEmail | New-AlarmActionTrigger -StartStatus "Red" -EndStatus "Yellow"
    Get-AlarmDefinition -Name "$HighPriorityAlarm" | Get-AlarmAction -ActionType SendEmail | New-AlarmActionTrigger -StartStatus "Yellow" -EndStatus "Green"
}

#---Disconnect from vCenter Server----
Disconnect-VIServer -Server $vCenterServer -Force:$true -Confirm:$false