[SOLVED] Get iscsi mapped drive letter from iscsi initiator name

Get iscsi mapped drive letter from iscsi initiator name

In PowerShell I'm trying to get the drive letter that an ISCSI target is mapped to. I'm using the following to get the ISCSI initiator name.

Get-IscsiTarget | ? {$_.IsConnected -eq $True} | Select -ExpandProperty NodeAddress

I have tried using Get-Disk | Select * and Get-PSDrive | Select * but these cmdlets do not seem to have any fields that I can link a target to, to obtain its drive letter.

Solution

As long as you have one active partition (not including reserved) per ISCSI target, you can use the following to match an ISCSI address to its corresponding drive letter.

foreach ($disk in (Get-Disk | ?{$_.BusType -Eq "iSCSI"})){

    $DriveLetter = ($disk | Get-Partition | ?{$_.Type -eq "Basic"}).DriveLetter
    $ISCSI = $disk | Get-IscsiSession

    [pscustomobject]@{
        DiskNumber=$disk.Number; 
        DriveLetter=$DriveLetter; 
        InitiatorNodeAddress=$ISCSI.InitiatorNodeAddress;
        InitiatorIP=$ISCSI.InitiatorPortalAddress;
        Size=$disk.Size;
    }  
}

This will check all connected ISCSI disks and get their corresponding drive letter, then it will put all the information into a customer PowerShell object and return it.