We resolved our issue two (2) weeks ago; however, we scrapped Snap Center 4.0 out of our virtual infrastructure at this time.
Our issue was that we somehow missed adding two (2) backup SVM targets into Snap Center 4.0 interface. Once this was realized, we had no further issues in terms of the Resource Groups.
Now, for the reason we scrapped Snap Center 4.0...
NetApp VSC 6.2.1P1D2 is not compatible with Snap Center 4.0. As such, it is not recommended to run both in the same vCenter instance. When we contacted NetApp Support, we were told that we would need to upgrade to NetApp VSC 6.2.1P1D6 in order for things to work properly. So we followed the advice of support....
A week later, we started exhibiting problems with our VSC. It would disappear out of our vCenter environment completely. Although in the Windows Client the plug was showing as registered, the web client it was completely missing with only the Snap Center 4.0 plugin available. Our VSC SMVI snapshots however were unaffected but we were unable to manage our VSC.
After several interations with removing and re-registering the VSC plugin it would come back and the next day, it would disappear.
Further interaction with NetApp support turned out that not even P1D6 is supported to co-exist with Snap Center 4.0 in the same vCenter instance.
This basically put a halt on our migration road map to get off VSC 6.2.1 P1D6.
As a result we have to go back to the drawing board. We plan now to build a completely new vCenter environment with VSC 7.0 and SnapCenter 4.0 and perform a VSC 6.2.1 P1D6 migration to Snap Center 4.0.
VSC 7.0 is the only version supported to co-exist with Snap Center 4.0.
For us unfortunately, it was important to migrate from VSC 6.2.1 to Snap Center 4.0 due to the amount of SMVI snapshots we perform through VSC. VSC 7.0 no longer performs SMVI snapshots which is why we are moving or trying to move to Snap Center 4.0. Due to the incompatibility with 6.2.1 and Snap Center 4.0 we have hit a migration road bump.
Too bad NetApp can't make the migration from VSC to SnapCenter 4.0 seamless...