Get Disk Space Information via Powershell in JSON Format

get-diskspace.ps1

Get-WmiObject win32_volume | Select-Object SystemName,Name, BlockSize, Capacity, FreeSpace, DriveLetter , @{Name="CapacityGB";Expression={[math]::round($_.Capacity/1GB,2)}}, @{Name="FreeSpaceGB";Expression={[math]::round($_.FreeSpace/1GB,2)}} , @{Name="FreeSpacePercent";Expression={[math]::round(($_.FreeSpace/($_.Capacity*1.00))*100.00,2)}} , @{Name="Date";Expression={$(Get-Date -f s)}}| Sort-Object Name | Convertto-JSON

# This format will allow you to filter on drive name and select a remote computer.
# Get-WmiObject win32_volume -ComputerName ServerName | Where-Object {$_.label -match "S\:.*"} | Select-Object SystemName,Name, BlockSize, Capacity, FreeSpace, DriveLetter , @{Name="CapacityGB";Expression={[math]::round($_.Capacity/1GB,2)}}, @{Name="FreeSpaceGB";Expression={[math]::round($_.FreeSpace/1GB,2)}} , @{Name="FreeSpacePercent";Expression={[math]::round(($_.FreeSpace/($_.Capacity*1.00))*100.00,2)}} , @{Name="Date";Expression={$(Get-Date -f s)}}| Sort-Object Name | Convertto-JSON

If you want to store the generated report as json file

Get-WmiObject win32_volume | Select-Object SystemName,Name, BlockSize, Capacity, FreeSpace, DriveLetter , @{Name="CapacityGB";Expression={[math]::round($_.Capacity/1GB,2)}}, @{Name="FreeSpaceGB";Expression={[math]::round($_.FreeSpace/1GB,2)}} , @{Name="FreeSpacePercent";Expression={[math]::round(($_.FreeSpace/($_.Capacity*1.00))*100.00,2)}} , @{Name="Date";Expression={$(Get-Date -f s)}}| Sort-Object Name | Convertto-JSON |Out-File -FilePath C:\temp\software$(get-date -f dd-MMMM-yyyy).json

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