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65 lines
1.9 KiB
PowerShell
Executable File
65 lines
1.9 KiB
PowerShell
Executable File
<#
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.SYNOPSIS
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Checks the swap space
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.DESCRIPTION
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This PowerShell script queries the current status of the swap space and prints it.
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.PARAMETER minLevel
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Specifies the minimum level in GB (10 GB by default)
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.EXAMPLE
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PS> ./check-swap-space.ps1
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✅ Swap space uses 21% of 1GB - 1005MB free
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.LINK
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https://github.com/fleschutz/PowerShell
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.NOTES
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Author: Markus Fleschutz | License: CC0
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#>
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param([int]$minLevel = 10)
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function MB2String { param([int64]$bytes)
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if ($bytes -lt 1024) { return "$($bytes)MB" }
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$bytes /= 1024
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if ($bytes -lt 1024) { return "$($bytes)GB" }
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$bytes /= 1024
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if ($bytes -lt 1024) { return "$($bytes)TB" }
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$bytes /= 1024
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if ($bytes -lt 1024) { return "$($bytes)PB" }
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$bytes /= 1024
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if ($bytes -lt 1024) { return "$($bytes)EB" }
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}
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try {
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if ($IsLinux) {
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$Result = $(free --mega | grep Swap:)
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[int64]$total = $Result.subString(5,14)
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[int64]$used = $Result.substring(20,13)
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[int64]$free = $Result.substring(32,11)
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} else {
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$items = Get-WmiObject -class "Win32_PageFileUsage" -namespace "root\CIMV2" -computername localhost
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[int64]$total = [int64]$used = 0
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foreach ($item in $items) {
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$total += $item.AllocatedBaseSize
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$used += $item.CurrentUsage
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}
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[int64]$free = ($total - $used)
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}
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if ($total -eq 0) {
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Write-Output "⚠️ No swap space configured"
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} elseif ($free -eq 0) {
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Write-Output "⚠️ Swap space of $(MB2String $total) is full"
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} elseif ($free -lt $minLevel) {
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Write-Output "⚠️ Swap space has only $(MB2String $free) of $(MB2String $total) free"
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} elseif ($used -lt 5) {
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Write-Output "✅ Swap space unused - $(MB2String $free) free"
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} else {
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[int64]$percent = ($used * 100) / $total
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Write-Output "✅ Swap space uses $percent% of $(MB2String $total) - $(MB2String $free) free"
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}
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exit 0 # success
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} catch {
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"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
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exit 1
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}
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