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62 lines
1.8 KiB
PowerShell
Executable File
62 lines
1.8 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 checks the free swap space.
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.PARAMETER MinLevel
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Specifies the minimum level (10 GB by default)
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.EXAMPLE
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PS> ./check-swap-space
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✅ Swap space uses 63 GB of 1856 GB.
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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]$MinLevel = 10) # minimum level in GB
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function MB2String { param([int64]$Bytes)
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if ($Bytes -lt 1000) { return "$($Bytes)MB" }
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$Bytes /= 1000
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if ($Bytes -lt 1000) { return "$($Bytes)GB" }
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$Bytes /= 1000
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if ($Bytes -lt 1000) { return "$($Bytes)TB" }
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$Bytes /= 1000
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if ($Bytes -lt 1000) { return "$($Bytes)PB" }
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$Bytes /= 1000
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if ($Bytes -lt 1000) { return "$($Bytes)EB" }
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}
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try {
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[int]$Total = [int]$Used = [int]$Free = 0
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if ($IsLinux) {
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$Result = $(free --mega | grep Swap:)
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[int]$Total = $Result.subString(5,14)
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[int]$Used = $Result.substring(20,13)
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[int]$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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foreach ($Item in $Items) {
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$Total = $Item.AllocatedBaseSize
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$Used = $Item.CurrentUsage
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$Free = ($Total - $Used)
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}
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}
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if ($Total -eq 0) {
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"⚠️ No swap space!"
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} elseif ($Free -lt $MinLevel) {
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"⚠️ Swap space has only $(MB2String $Free) of $(MB2String $Total) left to use!"
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} elseif ($Used -eq 0) {
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"✅ Swap space of $(MB2String $Total) is unused."
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} elseif ($Used -lt $Free) {
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"✅ Swap space uses $(MB2String $Used) of $(MB2String $Total)."
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} else {
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"✅ Swap space has $(MB2String $Free) of $(MB2String $Total) left."
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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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