topic Get-NcEfficiency vs Restricted volumes in Microsoft Virtualization Discussions

Get-NcEfficiency vs Restricted volumes

PHILIPALBERT — Wed, 10 Feb 2016 21:27:33 GMT

Hi,

I noticed that when I have a restricted volume the cmd Get-NcEfficiency fails.

PS Prompt> Get-NcEfficiency

Get-NcEfficiency : Object reference not set to an instance of an object.
At line:1 char:17
+ Get-NcEfficiency <<<<
+ CategoryInfo : InvalidOperation: (liauc94:NcController) [Get-NcEfficiency], NullReferenceException
+ FullyQualifiedErrorId : ApiException,DataONTAP.C.PowerShell.SDK.Cmdlets.Toolkit.Efficiency.GetNcEfficiency

Is this a normal behavior?

Thanks

Re: Get-NcEfficiency vs Restricted volumes

asulliva — Wed, 10 Feb 2016 21:40:52 GMT

Well, the same behavior happens to me...so I would say it is "normal". Is it the intended or desired result, probably not : )

I'll open a bug for this...thanks for pointing it out!

Andrew

Re: Get-NcEfficiency vs Restricted volumes

PHILIPALBERT — Thu, 11 Feb 2016 13:25:38 GMT

I was just wondering if I was the only one having that issue.

Thanks!

Re: Get-NcEfficiency vs Restricted volumes

Alcazar — Mon, 03 Apr 2017 19:32:28 GMT

Was there ever a bug filed for this? I there an existing work around in place? When i try to run Get-NCEffiicnecy i get the same results, unsure if its a bug within the toolkit or something within my code.

$cdot_controllers= (Get-Content $controllers) | Out-string | ConvertFrom-Json

foreach ($cdot_controller in $cdot_controllers | where {$_.Vendor -eq "NetApp" -and $_.Location -eq "Data Center" -and $_.OS -eq "CDOT"}){

$cdot_connect = Connect-NcController $cdot_controller.ClusterServer -Credential $cred

$cdot_aggregates = Get-NcAggr | ?{ $_.Name -notlike "*root" }

$cdot_efficiency = Get-NcEfficiency

foreach ($cdot_aggregate in $cdot_aggregates) {

$cdot_total_tb +=$cdot_aggregate.TotalSize

$cdot_available_tb +=$cdot_aggregate.Available

}

foreach ($cdot_vol in $cdot_efficiency) {

$cdot_dedupe_tb +=$cdot_vol.Returns.Dedupe

}

Get-NcEfficiency : Object reference not set to an instance of an object.

At E:\Michael\Netapp Heatmap Aggr Capacity.ps1:72 char:24

+ $cdot_efficiency = Get-NcEfficiency

+ ~~~~~~~~~~~~~~~~

+ CategoryInfo : InvalidOperation: (wdlnapc01.internal.cigna.com:NcController) [Get-NcEfficiency], NullReferenceException

+ FullyQualifiedErrorId : ApiException,DataONTAP.C.PowerShell.SDK.Cmdlets.Toolkit.Efficiency.GetNcEfficiency

Re: Get-NcEfficiency vs Restricted volumes

asulliva — Mon, 03 Apr 2017 23:34:40 GMT

Hello @Alcazar,

This was created as bug id 986240.

You could exclude the root aggregates and get only online aggregates using this query...

Get-NcAggr -Query @{ AggrRaidAttributes = @{ IsRootAggregate = $false; State = "online" } }

Likewise, the same works for volumes to return only non-system volumes...

Get-NcVol -Query @{ VolumeStateAttributes = @{ IsVserverRoot = $false; IsNodeRoot = $false; State = "online" } }

Which should eliminate the issue of returning aggregates which the Get-NcEfficiency cmdlet can't operate against.

Hope that helps.

Andrew