<#
VM level:
VM Name
Storage provisioned per disk
Storage used per disk
Free capacity per disk
Disk Mode ( dependent persistent vs independent persistent )
Disk Type ( Thick, thin, lazy, eager, etc... )
Datastore
Replication Technology, if applicable
Datacenter
#>

$VMStorageList = [System.Collections.ArrayList]@()
$AllVMs = Get-VM | Where-Object { $_.ExtensionData.summary.config.ManagedBy.Type -ne "placeholderVm" }
ForEach($VM in $AllVMs){
    $VmObj = [PSCustomObject]@{
        VMName = $VM.Name;
        UsedSpaceGB = $VM.UsedSpaceGB;
        ProvisionedSpaceGB = $VM.ProvisionedSpaceGB;
        Datastores = ($VM | Get-Datastore).Name
        DatastoreCluster = ($VM | Get-DatastoreCluster).Name
        Replication = switch ( ($VM | Get-TagAssignment -Category 'VR RPO').Tag.Name ){
            {$_ -like "*ABR*"} {"ABR"}
            {$_ -like "*:*"} {"VR"}
            Default {$false}
        }
        Datacenter = ($VM | Get-Datacenter).Name
        Disks = $VM | Get-HardDisk | Select-Object Name,CapacityGB,@{n='StorageFormat';e={$_.StorageFormat.ToString()}},@{n='Persistence';e={$_.Persistence.ToString()}}
    }
    $null = $VMStorageList.Add($VmObj)
}

$VMStorageList | ConvertTo-Json -Depth 5 | Out-File "C:\temp\VMs.json"


<#
Datastore:
Name
Capacity provisioned
Capacity used
Free capacity
Associated SAN device backing ( LUN Name )
Space Reclamation rate ( MB/s )
Datacenter
#>

$AllDatastores = Get-Datastore
$DatastoreList = [System.Collections.ArrayList]@()
ForEach($Datastore in $AllDatastores){
    Write-Verbose -Message ("Start " + $Datastore.Name) -Verbose
    #$Metadata = ($Datastore | Get-ScsiLun | Select-Object -First 1)

    If ( $Datastore.ExtensionData.info.vmfs.UnmapBandwidthSpec.FixedValue){
        # if reclamation rate is enabled at fixed rate, get that rate
        $ReclamationRate = ("Enabled at fixed rate: " + $Datastore.ExtensionData.info.vmfs.UnmapBandwidthSpec.FixedValue + " MB/s")
    } Else {
        $ReclamationRate = "UnmapBandwidthSpec is null.  Enabled at Low priority: Deleted or unmapped blocks are reclaimed on the LUN at low priority"
    }

    $DatastoreObj = [PSCustomObject]@{
        Name = $Datastore.Name;
        CapacityGB = $Datastore.CapacityGB;
        UsedSpaceGB = ($Datastore.CapacityGB - $Datastore.FreeSpaceGB);
        FreeSpaceGB = $Datastore.FreeSpaceGB;
        CanonicalName = ($Datastore | Get-ScsiLun | Select-Object -First 1).CanonicalName;
        SpaceReclamationRate = $ReclamationRate;
        Datacenter = ($VMHostToUse | Get-Datacenter).Name
    }
    $null = $DatastoreList.Add($DatastoreObj)
}

$DatastoreList | ConvertTo-Json -Depth 5 | Out-File "C:\temp\Datastores.json"