Selecting value from first pipelined argument - powershell

Question

I wrote a PowerShell script that gets some cluster information. One of the columns I need is from the first argument in the pipeline and I can't find a way to return it's value.
function Get-SQL-Clusters {
Param([string]$server)
$servers = Get-Content -LiteralPath "C:\temp\sql_clusters.txt"
if ($server -ne 1) {
$files = foreach ($box in $servers) {
Invoke-Command -ComputerName $box {
Get-ClusterResource | Get-ClusterParameter
} | Where-Object {
$_.Name -eq "Address"
} | Format-Table PSComputerName, ClusterObject, State, Name, Value -AutoSize
}
} else {
Write-Warning "'$server' is not a valid path."
}
return $files
}
When I run this, I get the data I need but State is blank. It's in Get-ClusterResource, but the IP, which is what I'm mostly looking for, is in Get-ClusterParameter.
Ideally I would like to return the name of the cluster, each of the alwayson names, it's IP and it's current state so I can see if the active IP is on the primary site or on the DR site.

Answer 1

Your call to Invoke-Command places the Get-ClusterResource | Get-ClusterParameter calls into its own script block {...}, then pipes the results of evaluating those expressions to the Where-Object cmd. This may not be the intended order of operations.
Project your results using the Select-Object cmdlet at intermediate places in your pipeline to give you access to the desired properties at later stages (specific syntax hasn't been checked;YMMV):
Invoke-Command -ComputerName $box { Get-ClusterResource | Select-Object -Property State, #{Name="ClusterParameter";Expression = {(Get-ClusterParameter -InputObject $_) }}| Where-Object { $_.ClusterParameter.Name -eq ...
Will produce objects like:
State | ClusterParameter
------------------------
foo ClusterParameter.ToString()

Answer 2

The almost final code. It's not 100% complete but I get the State and IP values now and will fix the rest later. Another change I made was to stop using text files and created a hash table for my servers because of formatting problems I had with text files.
function Get-SQL-Clusters-scrap
{
param([string]$server)
import-module c:\temp\sql_hashtable2.ps1
$servers = $sql_servers.hadr
if ($server -ne 1)
{
$files = ForEach ($box in $servers) {invoke-command -ComputerName $box {Get-ClusterResource |
foreach-object {($state) = ($_.State); $_ |
get-clusterparameter |Where-Object {$_.Name -eq "Address"} |
Format-Table ClusterObject,#{Name=”State”;Expression={$state}}, Name, Value, PSComputerName -AutoSize}}}
}
else
{Write-Warning "'$server' is not a valid path."}
return $files
}