I'm trying to see if anyone has seen an instance where Get-NcShapshot displays a cumulative value for half of the SnapShots then starts over for the other half. In other words in order to get the actual cumulative space you have to add the total space of the snapshots.
I'm currently running PSv4 and DataOntap Module version 3.2.0 on Windows 7 against a cDOT 8.2.3. I have seen this on SnapVault and SnapMirror destinations on volumes of only 600Gb in size. Below is an example of the output notice that the actual cumulative should be around 49.5:
PS > Get-NcSnapshot -Volume vsm_vol
Name Volume Vserver Created Total Cumulative Dependency