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<#
.SYNOPSIS
Get-DiskInventory retrieves logical disk information from one or
more computers.
.DESCRIPTION
Get-DiskInventory uses WMI to retrieve the Win32_LogicalDisk
instances from one or more computers. It displays each disk's
drive letter, free space, total size, and percentage of free
space.
Listing 20.2 Making Get-DiskInventory.ps1 an advanced script
Notice the Select-Object as
opposed to Format-Table
we used in chapter 19.
Licensed to Jim Martinson <jim.martinson@ridgewater.edu>
251Making parameters mandatory
.PARAMETER computername
The computer name, or names, to query. Default: Localhost.
.PARAMETER drivetype
The drive type to query. See Win32_LogicalDisk documentation
for values. 3 is a fixed disk, and is the default.
.EXAMPLE
Get-DiskInventory -ComputerName SRV02 -drivetype 3
#>
[CmdletBinding()]
param (
[Parameter(Mandatory=$True,HelpMessage="Enter a computer name to query")]
[Alias('host')]
[string]$computername,
[ValidateSet(2,3,5)]
[int]$drivetype = 3
)
Get-CimInstance -class Win32_LogicalDisk -ComputerName $computername `
-filter "drivetype=$drivetype" |
Sort-Object -property DeviceID |
Select-Object -property DeviceID,
@{name='FreeSpace(MB)';expression={$_.FreeSpace / 1MB -as [int]}},
@{name='Size(GB)';expression={$_.Size / 1GB -as [int]}},
@{name='%Free';expression={$_.FreeSpace / $_.Size * 100 -as [int]}}