我创建了一个 Hyper-V 副本警报脚本，但在满足条件时努力让它提醒我

Question

$status = Get-VMReplication | Select-Object Name, State, Health, Mode, FrequencySec, PrimaryServer, ReplicaServer, ReplicaPort | ConvertTo-Html
$Company = ""
$ReplicationHealth = (Get-VMReplication)
function ReplicationHealthFailedTelegram {
    $token = (Get-Content -Path C:\temp\telegrambot\token.txt)
    $chatid = (Get-Content -Path C:\temp\telegrambot\chatid.txt)
    $Message = "Replication Failed"
    $Company = ""
    $status = Get-VMReplication | Select-Object Name, State, Health, Mode, FrequencySec, PrimaryServer, ReplicaServer, ReplicaPort | ConvertTo-Html
    & 'C:\Program Files\PowerShell\7\pwsh.exe' -Command { $token = (Get-Content -Path C:\temp\telegrambot\token.txt);$chatid = (Get-Content -Path C:\temp\telegrambot\chatid.txt); $status = Get-VMReplication | Select-Object Name, State, Health, Mode, FrequencySec, PrimaryServer, ReplicaServer, ReplicaPort | ConvertTo-Html;$Message = "Replication Failed";$Company = "Howard Matthews Partnership - Harrogate";Send-TelegramTextMessage -BotToken $token -ChatID $chatid -Message $Company $Message}
    }
function EmailAlert {
    $User = "alert@domain.co.uk"
    $File = (Get-Content C:\Temp\pw.txt | ConvertTo-SecureString)
    $MyCredential = New-Object -TypeName System.Management.Automation.PSCredential `
    -ArgumentList $User, $File

            $To = "domain.co.uk"
            $from = "domain.co.uk"
            $EmailSubject = "Hyper-V Replication Error $Company"
            $smtp = "auth.smtp.1and1.co.uk"
            $DefaultMessage="
                <p>Dear Help,</p>
                <p>Replication has failed for $Company </p>
                <p>$status</p>
                <p>The Robot Checker .<br><br>
                </p>"

            $MailMessage = @{
                    To = $To
                    From = $from
                    # BCC = $Bcc
                    Subject = $EmailSubject
                    Body = $DefaultMessage
                    priority = "High"
                    Smtpserver = $smtp
                    Credential = $MyCredential
                    ErrorAction = "SilentlyContinue" 
                }

            Send-MailMessage @MailMessage -bodyashtml
}

if ($ReplicationHealth.health) {
    "Critical","Warning"
    EmailAlert
    ReplicationHealthFailedTelegram
} else {
    $null
}

The Email sends but it regardless if the status of the replication is normal, warning or critical. How would I go by adding the logic of getting to send me an email when that health status is Critical or Warning and not send me an email when it's normal.

Many Thanks!

Answer 1

This bit doesn't do what you think it should

if ($ReplicationHealth.health) {
    "Critical","Warning"
    EmailAlert
    ReplicationHealthFailedTelegram
} else {
    $null
}

With your if you are basically asking; "is $ReplicationHealth.Health a thing?" rather than checking for the value "of the thing", and the answer will always be yes in this case assuming nothing went wrong running Get-VMReplication .

A different example to demonstrate what I mean could be something like the following

if($(Get-ChildItem -Path "$env:windir\System32\WindowsPowerShell\v1.0\powershell.exe").Extension) { "Yup, .Extension is a thing" } else { "Nah, it's not!" }
if($(Get-ChildItem -Path "$env:windir\System32\WindowsPowerShell\v1.0\powershell.exe").Extension -eq ".exe") { "Yup, .Extension is a thing and its value is `'.exe`'" } else { "Nah, it's not!" }

In order to fix your if, you could try something like

if($ReplicationHealth.Health -eq "Critical" -or $ReplicationHealth.Health -eq "Warning") {
    EmailAlert
    ReplicationHealthFailedTelegram
}