enumerate hashtable output

PowerShell Help
1

Hello,

I’m having trouble when trying to output data from a hashtable. Below is my approach:

$CimSession=New-CimSession -ComputerName 'localhost'


foreach ($Session in $CimSession) {
    $DiskModel = Get-CimInstance -ClassName Win32_DiskDrive
    $DeviceID = Get-CimInstance -ClassName Win32_LogicalDisk
}

ForEach-Object `
    -Begin { `
$HashOut = @{ } ; $Result = @() }  `
    -Process { `
$HashOut.DiskModel = $DiskModel.Model ; $HashOut.DeviceID = $DeviceID.DeviceID }`
    -End { `
$Result += [pscustomobject]$HashOut }

My object ($Result) output is shown in brackets as a “nested” hash table.

DiskModel                                                                                                                                                    DeviceID
---------                                                                                                                                                          --------
{SAMSUNG MZVLB512HAJQ-000H7,                                                                                               {C:, D:, E:, F:…}
WDC WD1002FAEX-00Z3A0, LITEON CV1-8B256-HP, WDC WD3202ABYS-01B7A0…}

My attempt to enumerate:

    foreach ($h in $Result.GetEnumerator()) {
        $($h.DiskModel), $($h.DeviceID)
    }

but output still is not what I was aiming:

SAMSUNG MZVLB512HAJQ-000H7
WDC WD1002FAEX-00Z3A0
LITEON CV1-8B256-HP
WDC WD3202ABYS-01B7A0
MTFDDAK256MBF-1AN1ZABHA
WDC WD2003FZEX-00Z4SA0
C:
D:
E:
F:
G:
J:

I would like under diskmodel property all the disk models to be listed and under DeviceID each DeviceID per disk.

2

I think you actually asked the wrong question. :wink: It takes a little more logic to match a logical drive to the physical disk it’s contained in. Try the following snippet:

$diskDriveList = Get-CimInstance -ClassName Win32_DiskDrive
$logicalDiskToPartition = Get-CimInstance -ClassName Win32_LogicalDiskToPartition
$diskDriveToDiskPartitionList = Get-CimInstance -ClassName Win32_DiskDriveToDiskPartition

foreach ($diskDrive in $diskDriveList) {
    
    $partitionList = $diskDriveToDiskPartitionList | 
        Where-Object { 
            $_.Antecedent.DeviceID -eq $diskDrive.DeviceID 
        }

    $logicalDriveLetterList = $logicalDiskToPartition | 
        Where-Object { 
            $_.Antecedent.deviceID -in $partitionList.dependent.DeviceId 
        }

    [PSCustomObject]@{
        Model       = $diskDrive.Model
        DriveLetter = $logicalDriveLetterList.Dependent.DeviceId -join ','
    }
}

Off topic: May I ask what kind of code editor you’re using to paste the code here? Your code looks weird with all these strange spaces.

3

Hi Olaf!
thanks for your answer on this! Somehow forum bot blocked my post for a couple of hours and delayed to reply back. I have to admit this is a total different approach. I was thinking that, since I’ve located which info I needed (i.e. deviceID) it was a matter of output (hence the title in my post) rather than logic.

Regarding the code editor, actually is from vscode then to a notepad and then here. Not sure why there are that many spaces.