We have a PS script that gathers volume, qtree, and aggregate space across 3 clusters, then exports results to a CSV to send to Xymon (aka Big Brother) monitoring system where it's sorted and presented on a unified webpage. Our operators use that to monitor space and send Servicenow tickets to the on-call person rather than having AIQUM spam everyone with alerts at night. I've been working on modifying the script to not use ONTAPI switch since that's being deprecated. I haven't experienced the problem you've described, but below is the qtree portion of the script. I do the math to get the units we prefer. They did change the units and I had to change my math to get the desired results.
# All we care about is Name, Allocated (GB), Free (GB), % Full, and Vserver. A lot of what we do is driven by local Xymon expertise, so we don't get too complicated. Xymon works off percent full and sorts on that and is either green (<95), yellow (95-97), or red (>98). Pretty simple and no login required for our ops. I'm using the same PSTK version, but ONTAP 9.16.1P10. Due to some hardware EOS we can't go to 9.17 or above until later this year. Running PS 5.1. Hope this helps.
# Begin
$qtrees = Get-NcQuotaReport -Vserver * -Qtree * -QuotaType tree |
Where-Object { $_.DiskLimit -gt 0 } |
Select-Object @{
N="Name";E={$_.Qtree}
}, @{
N="Allocated (GB)";E={[math]::Round($_.DiskLimit/1.024GB)}
}, @{
N="Free (GB)";E={
$limit = [math]::Round($_.DiskLimit/1.024GB)
$used = [math]::Round($_.DiskUsed/1.024GB)
$limit - $used
}
}, @{
N="% Full";E={$_.DiskUsedPercentFileLimit}
}, @{
N="Vserver";E={$_.Vserver}
}
# End
