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VMware/vCheck/vSphere/90 Cluster LUN Path.ps1

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+function Get-LUNPathState {
+    <#
+            .SYNOPSIS
+            No parameters needed. Just execute the script.
+            .DESCRIPTION
+            This script outputs the number of paths to each LUN.
+     
+            .EXAMPLE
+            Get-LUNPathState -VMhosts 'esx01'
+            Lists all LUN pats for ESXi host esx01.
+            .EXAMPLE
+            $esxihosts = Get-VMHost
+            Get-LUNPathState -VMHosts $esxihosts
+            Lists all LUN paths for all ESXi hosts in $esxihosts
+    
+            .NOTES
+            Author: Patrick Terlisten, patrick@blazilla.de, Twitter @PTerlisten
+    
+            This script is provided "AS IS" with no warranty expressed or implied. Run at your own risk.
+            This script is based on: http://www.vmwareadmins.com/list-the-path-and-path-state-for-every-vsphere-datastore-using-powercli/
+            This work is licensed under a Creative Commons Attribution NonCommercial ShareAlike 4.0
+            International License (https://creativecommons.org/licenses/by-nc-sa/4.0/).
+    
+            .LINK
+            http://www.vcloudnine.de
+    #>
+
+    [CmdletBinding()]
+    Param(
+        [Parameter(Mandatory = $true, Position = 0, HelpMessage = 'ESXi Host', ValueFromPipeline = $true)]
+        [Alias('Name')]
+        [ValidateNotNullorEmpty()]
+        $VMhosts
+    )
+
+    # Create empty hash table
+    $ReportLunPathState = @()
+
+    # Initialize counter variable
+    $i = 0
+
+    try {
+        ForEach ($VMHost in $VMhosts) {
+            # Increment counter variable
+            $i++
+
+            # Get all datastores from the current host
+            $VMHostDatastores = Get-Datastore
+    
+            # Get all disks devices from the current host
+            $VMHostScsiLuns = $VMHost | Get-ScsiLun -LunType disk
+
+
+            ForEach ($VMHostScsiLun in $VMHostScsiLuns) {
+                # Get LUN paths for each disk device
+                $VMHostScsiLunPaths = $VMHostScsiLun | Get-ScsiLunPath
+       
+                # Count paths per disk device
+                $ReportLunPathState += ($VMHostScsiLunPaths | Measure-Object) | Select-Object `
+                    -Property @{N = 'Hostname'; E = { $VMHost.Name } }, `
+                @{N = 'Datastore'; E = { $VMHostDatastores | Where-Object -FilterScript { ($_.extensiondata.info.vmfs.extent | ForEach-Object -Process { $_.diskname }) -contains $VMHostScsiLun.CanonicalName } | Select-Object -ExpandProperty name } }, `
+                @{N = 'CanonicalName'; E = { $VMHostScsiLun.CanonicalName } }, `
+                @{N = 'Paths'; E = { $_.Count } }, `
+                @{N = 'Path State'; E = { $VMHostScsiLunPaths.State } }, `
+                @{N = 'IsLocal'; E = { $VMHostScsiLun.IsLocal } }
+            }
+        }
+    }
+
+    catch {
+        "Error was $_"
+        $line = $_.InvocationInfo.ScriptLineNumber
+        "Error was in Line $line"
+    }
+
+    finally {
+        $ReportLunPathState
+    }
+}
+
+$output = @()
+
+foreach ($cluster in Get-Cluster) {
+    $luns = @() #var to collect lun info from hosts
+    foreach ($esxi in $cluster | get-vmhost) {
+        foreach ($lun in ($esxi | Get-LUNPathState)) {
+            $result = "" | Select Hostname, Datastore, Paths, PathState, IsLocal
+            $result.Hostname = $lun.Hostname
+            $result.Datastore = $lun.Datastore
+            $result.Paths = $lun.Paths
+            $result.PathState = $lun.PathState
+            $result.IsLocal = $lun.IsLocal
+            $luns += $result
+        }
+    }
+    #check each ds and check if paths are consistent 
+    foreach($ds in ($luns | Group-Object -Property Datastore)){
+        $pathconsistency = $luns | Where-Object{$_.Datastore -eq $ds.Name} | Group-Object -Property Paths | Measure-Object #path consistents check
+        $pathinfo = $luns | Where-Object{$_.Datastore -eq $ds.Name} | Group-Object -Property Paths
+        
+        if($pathconsistency.Count -gt 1 ){
+            foreach($esxi in $pathinfo.group){
+                $result = "" | Select Cluster, Hostname, Datastore, Paths
+                $result.Cluster = (Get-VMhost -Name $esxi.Hostname).Parent
+                $result.Hostname = $esxi.Hostname
+                $result.Datastore = $esxi.Datastore
+                $result.Paths = $esxi.Paths
+                $output += $result
+            }
+            
+        }
+    }
+}
+$output
+
+$Title = "90 Cluster same LUN same Path-Count"
+$Header = "90 Cluster same LUN same Path-Count"
+$Comments = "LUNs have no consistent Path Count"
+$Display = "Table"
+$Author = "evoila GmbH" 
+$PluginVersion = 1.0
+$PluginCategory = "vSphere"