Dump connected drives serials and users - powershell

Question

I need to list users of a connected drive and it's serial # in an output file. I'll be connecting between 12-24 drives in arrays at a time. I would like to be able to put the assigned drive letters into a variable. And then have the entire script loop for each connected drive. dumping serial + linking it to the users of that drive in a CSV output file
How can I put the assigned drive letters into an array?
$(get-physicaldisk; get-childitem -path (array variable):\Users) | add-content C:\path\to\my\output.csv
almost gets the output I need when I try this on a single drive. But I'd really like to clean it up and only display the important info (PSChildName) excluding all default, public admin accounts to reduce duplicate un-needed info.
I wanted this to work
$(get-physicaldisk | select-object FriendlyName, SerialNumber)-$(get-childitem -path L:\Users| select-object PSChildName)
but it did not
I need it to grab the serial for each drive - and output the users associated with that drive … i'm struggling with making the output look the way I want.
For each - drive in array - output ((serial #) + (users on the drive)) amending my .csv
After much plugging and chugging i'm now here, thanks to everyone's help
function Get-UsersOnDrive([string[]]$DriveLetters){
if (!$DriveLetters){
$DriveLetters = Get-WmiObject Win32_Logicaldisk | %{$_.Name -replace ":", ""}
}
foreach($DriveLetter in $DriveLetters)
{
$SerialNumber = get-partition -DriveLetter $DriveLetter -ErrorAction Ignore | get-disk | select -ExpandProperty SerialNumber
$path = $DriveLetter + ":\Users"
$Users = get-childitem -path $path | select-object PSChildName
$Users | %{
$OutPut = new-object PsCustomObject
$OutPut | Add-Member -MemberType NoteProperty -Name SerialNumber -Value $SerialNumber -PassThru |
Add-Member -MemberType NoteProperty -Name Username -Value $_
return $OutPut
}
}
}
Get-UsersOnDrive -DriveLetters #("C") | Export-Csv -Path C:\sample\Test.csv -NoTypeInformation

Answer 1

Ok so here is what i came up with and its rough
Get-WmiObject Win32_Logicaldisk | %{
$DriveLetter = $_.Name -replace ":", ""
$SerialNumber = get-partition -DriveLetter $DriveLetter | get-disk | select -ExpandProperty SerialNumber
$Users = Get-WmiObject Win32_UserProfile | select -ExpandProperty LocalPath | ?{$_ -like "$DriveLetter*"} | %{
$_ -replace '.*\\'
}
$Users | %{
$OutPut = new-object PsCustomObject
$OutPut | Add-Member -MemberType NoteProperty -Name SerialNumber -Value $SerialNumber -PassThru |
Add-Member -MemberType NoteProperty -Name Username -Value $_
return $OutPut
}
} | Export-Csv -Path C:\sample\Test.csv -NoTypeInformation
A. Get WMI LogicalDisk (gets you the drive letters)
B. Pass the $DriveLetter into a get-partition and get the SerialNumber property value.
C. Get Users Profile path, then find the ones on the current drive and replace everything except for the last slash, which is the username
D. Foreach user on drive we create a Custom Object and add the properties SerialNumber and Username, then return output and export to CSV
Here is a function that you can call to get users on drive as well
function Get-UsersOnDrive([string[]]$DriveLetters){
if (!$DriveLetters){
$DriveLetters = Get-WmiObject Win32_Logicaldisk | %{$_.Name -replace ":", ""}
}
foreach($DriveLetter in $DriveLetters){
$SerialNumber = get-partition -DriveLetter $DriveLetter -ErrorAction Ignore | get-disk | select -ExpandProperty SerialNumber
$Users = Get-WmiObject Win32_UserProfile | select -ExpandProperty LocalPath | ?{$_ -like "$DriveLetter*"} | %{
$_ -replace '.*\\'
}
$Users | %{
$OutPut = new-object PsCustomObject
$OutPut | Add-Member -MemberType NoteProperty -Name SerialNumber -Value $SerialNumber -PassThru |
Add-Member -MemberType NoteProperty -Name Username -Value $_
return $OutPut
}
}
}
Get-UsersOnDrive -DriveLetters #("C","V","F") | Export-Csv -Path C:\sample\Test.csv -NoTypeInformation
If you remove -DriveLetters parameter and the drives then it will check all drives

Answer 2

The following code gets the disk serial number. I am not sure why that is needed. Will this give you a start?
function Get-DiskSerialNumber {
param(
[Parameter(Mandatory = $true,Position=0)]
[string] $DriveLetter
)
Get-CimInstance -ClassName Win32_DiskDrive |
Get-CimAssociatedInstance -Association Win32_DiskDriveToDiskPartition |
Get-CimAssociatedInstance -Association Win32_LogicalDiskToPartition |
Where-Object DeviceId -eq $DriveLetter |
Get-CimAssociatedInstance -Association Win32_LogicalDiskToPartition |
Get-CimAssociatedInstance -Association Win32_DiskDriveToDiskPartition |
Select-Object -Property SerialNumber
}
& openfiles /query /fo csv |
Select-Object -Skip 5 |
ConvertFrom-Csv -Header #('ID','USER','TYPE','PATH') |
Select-Object -Property USER,#{name='DRIVE';expression={$_.PATH.Substring(0,2)}} |
Sort-Object -Property DRIVE,USER -Unique |
Select-Object -Property *,
#{name='SERIALNUMBER';expression={(Get-DiskSerialNumber -Drive $_.DRIVE).SerialNumber}}