check_win_dedup_status.ps1

################################################################################## # # NAME: check_win_dedup_status.ps1 # # AUTHOR: Peter Luetke-Bexten # EMAIL: peter.luetke-bexten (at) benteler.com # # COMMENT: # Script to check if Windows DeDuplication is enabled for all fixed Disks except C: # and to Summarize the Savings of Windows DeDuplication # Might be helpfull if you are running your calssic windows fileserver with enabled deduplication # should be called via NRPE/NSClient++ # # Return Values for NRPE: # DeDup is enabled for all Volumes - OK (0) # DeDup on some Volumes not enabled - WARNING (1) # DeDup is not enabled for any Volume - WARNING (1) # DeDup Feature is not enabled - UNKNOWN (3) # Script errors - UNKNOWN (3) # # NSCLIENT.ini: # check_win_dedup_status = cmd /c echo scriptspowershellcheck_win_dedup_status.ps1 ; exit($lastexitcode) | "C:WindowsSystem32WindowsPowerShellv1.0powershell.exe" -noninteractive -noprofile -ExecutionPolicy unrestricted -command - # # NRPE Check: # check_nrpe -H Targethost -p 5666 -t 120 -u -c check_win_dedup_status # # CHANGELOG: # 1.0 20201211 - initial version # ################################################################################## # Nagios return States $returnStateOK = 0 $returnStateWarning = 1 $returnStateCritical = 2 $returnStateUnknown = 3 # Check DedupFeature if (!((Get-WindowsFeature -Name FS-Data-Deduplication).InstallState -eq "Installed")) { Write-Host "FS-Data-Deduplication Feature is not enabled" exit $returnStateUnknown } if (!(Get-Command Get-DedupStatus -errorAction SilentlyContinue)) { Write-Host "Get-DedupStatus is not available on this System" exit $returnStateUnknown } # Get local Disk Infos $DiskswoOS=Get-WmiObject -Class Win32_logicaldisk -Filter "DriveType = ""3""" | Where-Object {$_.DeviceID -ne ‘C:’} | Select-Object -Property DeviceID, DriveType, VolumeName, @{L='FreeSpaceGB';E={"{0:N2}" -f ($_.FreeSpace /1GB)}}, @{L="CapacityGB";E={"{0:N2}" -f ($_.Size/1GB)}} # Check if there are DataVolumes (every local disk excl. Drive C:) if ($DiskswoOS -eq $Null) { Write-Host "No DataVolumes available" exit $returnStateUnknown } # Get DeDup Status $DisksDeDup=Get-Dedupstatus | Select-Object -Property Volume, @{L='FreeSpaceGB';E={"{0:N2}" -f ($_.FreeSpace /1GB)}}, @{L="SavedSpaceGB";E={"{0:N2}" -f ($_.SavedSpace/1GB)}} # Check if no Deduplication is available for anyo DataVolumes if ($DisksDeDup -eq $Null) { Write-Host "No Deduplication enabled for any of the DataVolumes" exit $returnStateUnknown } # Compare lokal Disk Info with DedupStatus Info $Comparsion=Compare-Object -ReferenceObject $DiskswoOS -DifferenceObject $DisksDeDup -PassThru # If DedupStatus differs with lokal Disk Info display the Disk(s) without DDP enabled and also summarize if ($Comparsion -ne $Null) { foreach ($Object in $Comparsion) { Write-Host "Drive $($Object.DeviceID) has no DeDuplication enabled" } $SavingsTotalGB = 0 foreach ($Object in $DisksDeDup) { $SavingsTotalGB += $($Object.SavedSpaceGB) } Write-Host "Warning - not all Drives have DeDup enabled| 'DedDup Savings Total GB'=$($SavingsTotalGB)" exit $returnStateWarning } # If DedupStatus has same Volumes as lokal Disk printout the DeDup Savings per Volume if ($Comparsion -eq $Null) { $SavingsTotalGB = 0 foreach ($Object in $DisksDeDup) { $SavingsTotalGB += $($Object.SavedSpaceGB) } Write-Host "OK - DeDup Savings Total $($SavingsTotalGB) GB| 'DedDup Savings Total GB'=$($SavingsTotalGB)" exit $returnStateOK } # if we are here, something went wrong exit $returnStateCritical

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