How to Capture Cluster info Remotely from a non-Clustered Node - powershell

Question

I've been banging my head on this for a few days now, and I just can't figure out the best way to do it. I've got a script where I collect a bunch of data and output it to an html file (using PSWriteHTML Module, which is where the New-HTMLTable at the end comes from).
I've piecemealed the script together over time so I can gather the data from multiple servers at once, and for the most part, it all works great. As I've added data to the script to collect new info, there's a few parts that I just can't get to work right remotely. I know the piecemeal approach has left me with some redundant code, but I'm just trying to make it all work right before I re-write it again to clean it up, so my apologies for its current state.
The following code works great when I run the script from a server in a Windows Cluster, but I want things to work from any server, not necessarily a Cluster Node.
Here's orig code for this section:
try
{
$ClusterIPInfo = Invoke-command -computer $Computer {
Get-Cluster | Get-ClusterResource | %{
$_ | select Name,
#{ Name = "Address"; Expression = { $_ | Get-ClusterParameter -Name Address -ErrorAction SilentlyContinue | select -ExpandProperty Value } },
#{ Name = "SubnetMask"; Expression = { $_ | Get-ClusterParameter -Name SubnetMask -ErrorAction SilentlyContinue | select -ExpandProperty Value } }
}
} | Select -Property * -ExcludeProperty PSComputerName, RunSpaceID, PSShowComputerName
$ClusterResourceInfo = Invoke-command -computer $Computer {
Get-ClusterResource | Select Cluster, Name, State, ResourceType, OwnerGroup, OwnerNode, ID, IsCoreResource, IsNetworkClassResource, IsStorageClassResource | Sort-Object -Property OwnerGroup, Name
} | Select -Property * -ExcludeProperty PSComputerName, RunSpaceID, PSShowComputerName
$ResourceInfo = #()
foreach ($rec in $ClusterResourceInfo)
{
$Owner = (Get-ClusterResource | Sort-Object -Property OwnerGroup, Name | Get-ClusterOwnerNode | %{
$_ | select #{ Name = "Name"; Expression = { $_.ClusterObject } },
#{ Name = "PossibleOwners"; Expression = { $_.OwnerNodes } }
} | Where { $_.Name -eq $rec.Name }).PossibleOwners
$Dependency = (Get-ClusterResource | Sort-Object -Property OwnerGroup, Name | Get-ClusterResourceDependency | %{
$_ | select #{ Name = "Name"; Expression = { $_.Resource } },
#{ Name = "Dependency"; Expression = { $_ | Select-Object -ExpandProperty "DependencyExpression" } }
} | Where { $_.Name -eq $rec.Name }).Dependency
$address = ($ClusterIPInfo | Where { $_.Name -eq $rec.Name }).Address
$subnetmask = ($ClusterIPInfo | Where { $_.Name -eq $rec.Name }).SubnetMask
$recObj = New-Object PSObject
$recObj | Add-Member NoteProperty -Name "Cluster" -Value $rec.Cluster
$recObj | Add-Member NoteProperty -Name "Name" -Value $rec.Name
$recObj | Add-Member NoteProperty -Name "State" -Value $rec.State
$recObj | Add-Member NoteProperty -Name "Resource Type" -Value $rec.ResourceType
$recObj | Add-Member NoteProperty -Name "Owner Group" -Value $rec.OwnerGroup
$recObj | Add-Member NoteProperty -Name "Owner Node" -Value $rec.OwnerNode
$recObj | Add-Member NoteProperty -Name "Possible Owners" -Value $Owner
$recObj | Add-Member NoteProperty -Name "Dependency" -Value $Dependency
$recObj | Add-Member NoteProperty -Name "IP Address" -Value $address
$recObj | Add-Member NoteProperty -Name "Subnet Mask" -Value $subnetmask
$recObj | Add-Member NoteProperty -Name "Is Core Resource" -Value $rec.IsCoreResource
$recObj | Add-Member NoteProperty -Name "Is Network Resource" -Value $rec.IsNetworkClassResource
$recObj | Add-Member NoteProperty -Name "Is Storage Resource" -Value $rec.IsStorageClassResource
$ResourceInfo += $recObj
}
New-HTMLTable -DataTable $ResourceInfo -HideFooter -HideButtons -DisableSearch
The parts that don't work correctly remotely are the Dependency and PossibleOwners. I know the reason it doesn't work is because when the server running the script isn't a Cluster Node, it doesn't recognize the command under the Foreach loop Get-ClusterResource. But I just can't figure out how to make those pass correctly from within the Foreach loop, but still use the info from $ClusterResourceInfo.
I've re-written this a hundred different ways, i.e. make a single Invoke-command with basically one big Get-Cluster variable (couldn't get it to capture the Dependency/PossOwners, always $null), splitting up the Dependency and PossOwners to their own separate Invoke-Command (best I can get it to do is display System.Object[], or when I did get it to display, it captured ALL of the Dependencies for all objects and displayed on every line instead of splitting it up correctly).
I've tried every possible way I can think of or found online, but just can't get it to work correctly remotely.
Here's how the orig code above outputs (which is what I want, but I just want to fix it so it works remotely):
I am desperately hoping for some brilliance or guidance to set me on the right track. I tried so many ways, but just never quite got it where it needs to be, so any help is most appreciated and welcome. Thanks.

Answer 1

Couple of things i can suggest.
The "Get-ClusterResource" cmdlet fails because it is not installed on the server.
You may try to load the Failover cluster module using Import-Module, and if it fails (on a non-cluster Node), you can add the Failover Cluster Module for Windows PowerShell Feature, using the following PowerShell cmd:
Add-WindowsFeature RSAT-Clustering-PowerShell
You may try connecting to to the remote cluster node where the resource is hosted, using WMI ?
You have enough info about the resource to be able to write a filtered WMI query.

Answer 2

So the piecemeal approach is what got me in trouble. In trying to merge things together, I kept breaking it (mainly because I think had doubled up the %{}). So instead of merging, I just replicated the parts that were already working as intended.
Ultimately this code worked fine:
$ClusterInfo = Invoke-command -computer $Computer {
Get-Cluster | Get-ClusterResource | %{
$_ | select Name,
#{ Name = "Address"; Expression = { $_ | Get-ClusterParameter -Name Address -ErrorAction SilentlyContinue | select -ExpandProperty Value } },
#{ Name = "SubnetMask"; Expression = { $_ | Get-ClusterParameter -Name SubnetMask -ErrorAction SilentlyContinue | select -ExpandProperty Value } },
#{ Name = "PossibleOwners"; Expression = { $_ | Get-ClusterOwnerNode | select OwnerNodes | select -ExpandProperty OwnerNodes } },
#{ Name = "Dependency"; Expression = { $_ | Get-ClusterResourceDependency | select -ExpandProperty "DependencyExpression" } }
}
} | Select -Property * -ExcludeProperty PSComputerName, RunSpaceID, PSShowComputerName
$ClusterResourceInfo = Invoke-command -computer $Computer {
Get-ClusterResource | Select Cluster, Name, State, ResourceType, OwnerGroup, OwnerNode, IsCoreResource, IsNetworkClassResource, IsStorageClassResource | Sort-Object -Property OwnerGroup, Name
} | Select -Property * -ExcludeProperty PSComputerName, RunSpaceID, PSShowComputerName
$ResourceInfo = #()
foreach ($rec in $ClusterResourceInfo)
{
$Owner = ($ClusterInfo | Where { $_.Name -eq $rec.Name }).PossibleOwners
$Dependency = ($ClusterInfo | Where { $_.Name -eq $rec.Name }).Dependency
$address = ($ClusterInfo | Where { $_.Name -eq $rec.Name }).Address
$subnetmask = ($ClusterInfo | Where { $_.Name -eq $rec.Name }).SubnetMask
$recObj = New-Object PSObject
$recObj | Add-Member NoteProperty -Name "Cluster" -Value $rec.Cluster
$recObj | Add-Member NoteProperty -Name "Name" -Value $rec.Name
$recObj | Add-Member NoteProperty -Name "State" -Value $rec.State
$recObj | Add-Member NoteProperty -Name "Resource Type" -Value $rec.ResourceType
$recObj | Add-Member NoteProperty -Name "Owner Group" -Value $rec.OwnerGroup
$recObj | Add-Member NoteProperty -Name "Owner Node" -Value $rec.OwnerNode
$recObj | Add-Member NoteProperty -Name "Possible Owners" -Value $Owner
$recObj | Add-Member NoteProperty -Name "Dependency" -Value $Dependency
$recObj | Add-Member NoteProperty -Name "IP Address" -Value $address
$recObj | Add-Member NoteProperty -Name "Subnet Mask" -Value $subnetmask
$recObj | Add-Member NoteProperty -Name "Is Core Resource" -Value $rec.IsCoreResource
$recObj | Add-Member NoteProperty -Name "Is Network Resource" -Value $rec.IsNetworkClassResource
$recObj | Add-Member NoteProperty -Name "Is Storage Resource" -Value $rec.IsStorageClassResource
$ResourceInfo += $recObj
}
New-HTMLTable -DataTable $ResourceInfo -HideFooter -HideButtons -DisableSearch