topic Re: Get-NcEfficiency vs DataProtection SVM in Microsoft Virtualization Discussions

Get-NcEfficiency vs DataProtection SVM

storageguy — Wed, 04 Jun 2025 13:40:07 GMT

Heelo PS Toolkit gurus,

My code (browed from here and modified to my purpose).

$DataVservers = Get-NcVserver | Where-Object {$_.VserverType -eq "data"}
ForEach ($Vserver in $DataVservers) {
Get-NcEfficiency -vserver $Vserver | 
Sort-Object vserver | Select-Object Vserver, Name, @{ 'N'="Cpacity"; "E"={ ConvertTo-FormattedNumber -Type DataSize -NumberFormatString "0.00" -Value $_.Capacity }}, @{ 'N'="Used"; "E"={ ConvertTo-FormattedNumber -Type DataSize -NumberFormatString "0.00" -Value $_.Used }}, @{ 'N'="Free"; "E"={ ConvertTo-FormattedNumber -Type DataSize -NumberFormatString "0.00" -Value $_.Free }} |format-table -Autosize
}

There is a dataprotection SVM on the cluster. Script displays ok until hit the DR-SVM. It throws this error and continue with the rest of the SVMs

Get-NcEfficiency : Object reference not set to an instance of an object.
At line:2 char:1
+ Get-NcEfficiency -vserver $Vserver |
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (xx.xxx.xxx.xxx:NcController) [Get-NcEfficiency], NullReferenceException
+ FullyQualifiedErrorId : ApiException,DataONTAP.C.PowerShell.SDK.Cmdlets.Toolkit.Efficiency.GetNcEfficiency

Any work around to supress this error and display the data for the DR-SVM also?

Thanks

Re: Get-NcEfficiency vs DataProtection SVM

asulliva — Thu, 31 May 2018 13:39:18 GMT

Hello @storageguy,

You'll want to add an additional filter to your query for the SVM sub-type...

Get-NcVserver -Query @{ VserverType = "data"; "VserverSubtype" = "default" }

There are four possible values for the sub-type:

default - normal SVMs
dp_destination - SVM-DR destination
sync_source - MetroCluster source SVM
sync_destination - MetroCluster destination SVM

Add/remove them from your query to get the type needed.

Hope that helps.

Andrew

Re: Get-NcEfficiency vs DataProtection SVM

storageguy — Fri, 01 Jun 2018 02:44:23 GMT

Unfortunatly, that didn't solve the issue. Error message still appearing and I still want my DR SVM volumes also included in the report. BTW: all my SVMs are data and subtype default (except node ones and admin one)

Thanks again looking into this.