topic Re: how to change the espsilon node using powershell cmdlets in ONTAP Discussions

how to change the espsilon node using powershell cmdlets

Arjun_chris — Wed, 04 Jun 2025 12:34:05 GMT

Hi All,

I'm trying to automate the ontap upgrade process and i need to trasnfer the epsilon node to another node. I know we can use Invoke-NcSsh and then use the normal ontap command but i want to achive it using PS cmdlet so that i can use the previous varibales. I tried Set-Ncnode but there is no option to trasnfer the epsilon. Any help is highly appricaited.

Here is my code.

#ClusterName

$Cluster = Read-Host "Enter the cluster name to connect"

#credentials to connect the cluster

$creds= Get-Credential -UserName "admin" -Message Null

foreach ($item in $Cluster) {

Connect-NcController $item -Credential $creds}

$epsilonnode= Get-NcNode | where {$_.IsEpsilonNode -eq $true}

Write-Host "The Epsilon node is : $epsilonnode"

$nonepsilonnode = Get-NcNode |where {$_.IsEpsilonNode -eq $false}

$nonepsilonnode

Read-Host -Prompt "Press any key to continue"

$newepsilonnode = Read-Host -Prompt "Enter the node name to trasnfer the Epsilon :"

Write-Host "Trasnferring the Epsilon to $newepsilonnode ...."

Re: how to change the espsilon node using powershell cmdlets

TMACMD — Wed, 08 May 2019 17:01:34 GMT

Int ONTAP via CLI, I do not believe it is a one-step process.

You unset (make Epsilon FALSE) it from the node first.

Then Assign (make Epsilon TRUE) it to another node.

Hopefully that helps!

Re: how to change the espsilon node using powershell cmdlets

Arjun_chris — Thu, 09 May 2019 08:06:28 GMT

Hi TMAC, I am aware the steps in ONTAP CLI but I am looking for a powershell Cmdlet to achieve it. I cannot use invoke-ncssh cmdlet followed by ontap cli commands because ontap cli doesn't accept $variables. I want a Powershell cmdlet by using which I can change the epsilon assignments. Thanks.