问以不足10%的空闲磁盘空间检索所有存储空间

EN

    $TotalGB = @{Name="Capacity(GB)";expression={[math]::round(($_.Capacity/ 1073741824),2)}}
    $FreeGB = @{Name="FreeSpace(GB)";expression={[math]::round(($_.FreeSpace / 1073741824),2)}}
    $FreePerc = @{Name="Free(%)";expression={[math]::round(((($_.FreeSpace / 1073741824)/($_.Capacity / 1073741824)) * 100),0)}}

    $emailFrom="example@example.com"
    $emailTo="test@example.com"

    function get-mountpoints {
$volumes = Get-WmiObject win32_volume -Filter "DriveType='3'" -ComputerName someComputer| Where-Object {$_.DriverLetter -eq $null}
if(($volumes | Select VolumeName, Label, $TotalGB, $FreeGB, $FreePerc | ?{$_."Free(%)" -lt 20} | Measure-Object).Count -ne 0)
{
    $volumes | Select VolumeName, Label, $TotalGB, $FreeGB, $FreePerc | ?{$_."Free(%)" -lt 20} | Format-Table -AutoSize
    $Subject="Disk $volumes.Label on $hostname has less than $volumes.$FreeGB GB of free space left, which is $volumes.$FreePerc %" | ?{$_."Free(%)" -lt 20} 
    Send-MailMessage -From $emailFrom -To $emailTo  -Subject $Subject -Body $Subject -Priority High -dno onSuccess, onFailure -SmtpServer "smtp.mail.com" -Port 25  
}
}

get-mountpoints 

$emailFrom = "mail@mail.com"
$emailTo = "tomail@mail.com"
function Get-Mountpoints {
    param(
        $ComputerName, 
        $FreePercentage,
        $Filter ="DriveType='3'"
    )

  $volumes = Get-WmiObject win32_volume -Filter $Filter -ComputerName $ComputerName |
    Where-Object {$_.DriverLetter -eq $null -and ([math]::round(((($_.FreeSpace / 1073741824)/($_.Capacity / 1073741824)) * 100),0)) -lt $FreePercentage} 

    if($volumes) {

        # You might want to use the header of the body below, whatever.
        $Subject = "Issue for space on server $ComputerName"

        # When referencing parameter values in a string, you need to tell powershell to evaluate your string in a special way
        # Wrapping things in a $() essentially is an order of operations for evaluation, the more nested, the earlier you will be evaluated
        # You can also use this $() when your variable name abuts a character, like in the % below 
        $Body = "Hostname: $ComputerName `r`n" + [System.Environment]::NewLine # a "shortcut" for system anonymous newlines
        $Body += 
            # If you comment out $Volumes and replace it with the next line, you will get two rows output into $Body
             $Volumes | 
            #  @( [pscustomobject]@{Label = "C"; FreeSpace = 10;}, [pscustomobject]@{Label = "C"; FreeSpace = 10;})  | 
            Foreach-Object {
                "Disk $($_.Label) has less than $([math]::round(($_.FreeSpace / 1073741824),2)) GB of free space left, which is $([math]::round(((($_.FreeSpace / 1073741824)/($_.Capacity / 1073741824)) * 100),0))% `r`r"
            }
        # In PowerShell, these messages will be supressed unless the console runs $VerbosePreference="Continue" indicating you would like to see more verbose output 
        # I added the -WhatIf so you wont send anything
        #$VerbosePreference="Continue"
        Write-Verbose "From: $emailFrom To: $emailTo"
        Write-Verbose $Subject
        Write-Verbose $Body
        Send-MailMessage -From $emailFrom -To $emailTo -Subject $Subject -Body $Body -Priority High -dno onSuccess, onFailure -SmtpServer "smtp.mail.com" -Port 25
      }
    }

# Why not maintain a list of computers? 
$ComputerList = @(
    "localhost"
)
$ComputerList | ForEach-Object {
    Get-Mountpoints -ComputerName $_ -Filter "DriveType='3'" -FreePercentage 20
} # I Added some parameters so you can make it a little more flexible