Get-NaLunTargetDeviceId - trying to get LUN WWN

[ALEXANDER_KRIVOSHEIN]

Hello everybody, I'm trying to get LUN WWN with PowerShell and I faced with issue.

At PS side:

PS C:\> Get-NaLunSerialNumber /vol/AIX_TEST/AIX_TEST

D0zdE+CP/KHo

PS C:\> Get-NaLunTargetDeviceId -serialnumber "D0zdE+CP/KHo" -Protocol fcp

Get-NaLunTargetDeviceId : Extra input: protocol

At line:1 char:24

+ Get-NaLunTargetDeviceId <<<<  -serialnumber "D0zdE+CP/KHo" -Protocol fcp

    + CategoryInfo          : InvalidOperation: (xx.xx.xx.xx:NaController) [Get-NaLunTargetDeviceId], EINVALIDINPUTERROR

    + FullyQualifiedErrorId : ApiException,DataONTAP.PowerShell.SDK.Cmdlets.Lun.GetNaLunTargetDeviceId

At controller side:

fas-bottom1> Wed AprWed Apr 10 16:34:37 VOLT 10 16: [fas-bottom1:api.input.invalidSchema:warning]: Error in API input schema validation. API name: lun-get-target-device-id. Detailed error: Extra input: protocol.

34:37 VOLT [fas-bottom1:api.input.invalidSchema:warning]: Error in API input schema validation. API name: lun-get-target-device-id. Detailed error: Extra input: protocol.

As you can see I did mark "Extra input: protocol", because if I try to use Get-NaLunTargetDeviceId without -Protocol I get this:

PS C:\Distr> Get-NaLunTargetDeviceId -serialnumber "D0zdE+CP/KHo"

cmdlet Get-NaLunTargetDeviceId at command pipeline position 1

Supply values for the following parameters:

(Type !? for Help.)

Protocol: fcp

Get-NaLunTargetDeviceId : Extra input: protocol

At line:1 char:24

+ Get-NaLunTargetDeviceId <<<<  -serialnumber "D0zdE+CP/KHo"

    + CategoryInfo          : InvalidOperation: (xx.xx.xx.xx:NaController) [Get-NaLunTargetDeviceId], EINVALIDINPUTERROR

    + FullyQualifiedErrorId : ApiException,DataONTAP.PowerShell.SDK.Cmdlets.Lun.GetNaLunTargetDeviceId

Suggestions?

[ALEXANDER_KRIVOSHEIN]

Ok, folks, same story, but for c-mode?

There is no Get-NcLunSerialNumbercommand.

[ALEXANDER_KRIVOSHEIN · Accepted solution]

I guess I solve the problem. (with information from this topic https://communities.netapp.com/thread/27473)

$a = Get-NaLunSerialNumber /vol/vol1/lun1;

$b = $a.ToCharArray();

Foreach ($element in $b) {$c = $c + [System.String]::Format("{0:X}", [System.Convert]::ToUInt32($element))}

"naa.60a98000" + $c

[MACKOPES1]

###############################################################################################

## Get-NALunSerialNumberHex: Function that gathers the Hex Serial number of an NALun

###############################################################################################

Function Get-NALunSerialNumberHex {

    param (

        [parameter(Mandatory=$true)]

        $LunPath

    )

    Write-Host "[Gathering Lun Serial Number]" -ForegroundColor Cyan

    $LunSerial = ((Get-NaLunSerialNumber $LunPath).ToCharArray() | % {([byte][char]$_).ToString("X2")}) -join ""

    return $LunSerial

}

[bsti]

There's a definite mismatch between the Powershell cmdlet and the API. The API does not accept a protocol parameter.

Try this as a  workaround:

function GetWWN([string] $lunSerialNo)

{

  $req = New-Object "System.xml.XmlDocument"

  $req.LoadXml("<lun-get-target-device-id><lun-serial-id>$lunSerialNo</lun-serial-id></lun-get-target-device-id>")

  $response = Invoke-NaSystemApi $req

  $response.results."target-device-id"

}

Call it like this:

Connect-NAController "mycontroller" -RPC

$lun = get-nalun -terse -path "/vol/myvol/myvollun"

GetWWN $lun.SerialNumber

[ALEXANDER_KRIVOSHEIN]

Thanks for your advice!

It seems not working correctly... WWN's for two different LUN's are the same.

PS C:\Scripts> .\LunWWN.ps1

/vol/AIX_TEST/AIX_TEST

D0zdE+CP/KHo

naa.600A098200000675875

PS C:\Scripts> .\LunWWN.ps1

/vol/TClient_PROD_DataStore_02/TClient_PROD_DataStore_02

D0zdE+CP/KHs

naa.600A098200000675875