One to Many vms not showing virtualizationsites/vm

#Get Unprotected VMs
function Get-ZertoVM {
<#
.SYNOPSIS
Returns VMs that Zerto can see that are not currently protected
.PARAMETER VMName
Return information on specific VMs
.EXAMPLE
Get-ZertoVM -VMName COMPUTERNAME
.PARAMETER SiteIdentifier
Specify the SiteID search
.EXAMPLE
Get-ZertoVM -SiteIdentifier ab1cd123-ab12-1a23-1a2b-0123ab1234a1
.PARAMETER IdOnly
Return only the ID of the VM
.EXAMPLE
Get-ZertoVM -VMName COMPUTERNAME -IdOnly
#>
param
(
    [Parameter(Mandatory=$false,
  ValueFromPipelineByPropertyName=$true,
  HelpMessage='Zerto VM Name')]
  [String]$VMName = "null",
    [Parameter(Mandatory=$false,
  ValueFromPipelineByPropertyName=$true,
  HelpMessage='Zerto Site Identifier, gathered from Get-ZertoSite')]
  [String]$SiteIdentifier = "null",
    [Parameter(Mandatory=$false,
  ValueFromPipelineByPropertyName=$true,
  HelpMessage='Return only the ID of a single VM VMIdentifier, ignored if no VMName given')]
  [Switch]$IdOnly = $false
    
)
Try {
    if ($SiteIdentifier -eq "null"){$SiteIdentifier = Get-ZertoSite | select SiteIdentifier -ExpandProperty SiteIdentifier}
    New-ZertoSession
    $ResultsURL = $global:connZerto.BaseURL+"virtualizationsites/"+$SiteIdentifier+"/vms"
    $ResultsCMD = Invoke-RestMethod -Uri $ResultsURL -TimeoutSec 100 -Headers $global:connZerto.SessionHeader -ContentType "application/JSON"
    Remove-ZertoSession
    if ($VMName -eq "null"){$ResultsCMD}
    elseif ($IDOnly) {$ResultsCMD | where {$_.VMName -like "$VMName"} | select VMIdentifier -ExpandProperty VMIdentifier}
    else {$ResultsCMD | where {$_.VMName -like "$VMName"}}
    } #Try
Catch
    {}
}

Basically the New-ZertoSession function populates the $global:connZerto with the BaseURL and SessionHeader with some predefined credentials and ZVM variables.

The Remove-ZertoSession removes it.  This way we don’t get a lot of open sessions waiting to time out, though it does flood the ZVM Events with login spam.

Ok, I think I just figured this out.  It appears that maybe back before Zerto 6, the “virtualizationsites/<SITEIDENTIFIER>/vms” would pull all vms on the vcenter.  Now, it only pulls unprotected vms.  My “Get-ZertoVM” function uses that method to get the vm id to add it to the VPG.  I’ve just got to do a check if I don’t find it with that method and get it from the “vms/<VMIDENTIFIER>” method instead.  A little inconvenient, but doable.

Ok, I think I just figured this out.  It appears that back before Zerto 6, the “virtualizationsites/<SITEIDENTIFIER>/vms” would pull all vms on the vcenter as long as they have not been placed in a certain number of VPGs.  Now, it only pulls unprotected vms, even though we have the One to Many license.  I could work around this by double checking with the “vms/<VMIDENTIFIER>” method.  Should we be able to get all available vms according to the REST API documentation for 6.0u3 on page 82?  Unless this was fixed in 6.0u3, we are currently on 6.0u2.  Thanks for your help!