Hi,
No, they do not co-exist on the same vCenter but plug-in gets upgraded.
Here what I noted in my own upgrade notes when I migrated from 4.2.1 to 4.3.
"... upgrade path requires an initial setup of NDB, then migration SCV metadata to NDB, then upgrade SnapCenter Server to version 4.3.x with finaly upgrade NDB to SCV 4.3.
NetApp customers should follow the upgrade path especially if an application consistent backup for virtualized applications is desired. Please refer to NetApp documentation center for additional information."
In case you use SnapCenter VMware plug-in (SCV) only, your steps should be:
- upgrade your Windows SnapCenter 4.1 to 4.2.1 (SCV plug-in gets upgraded to 4.1.1 on vCenter)
- set up NDB 1.0.1D1
- migrate SCV plug-in to NDB using PowerShell command-lets on Windows server
- decommission Windows server
- upgrade NDB 1.0.1D1 to SCV 4.3.x
Please be aware that migrated SCV plug-in data could become unmanageable like migrated backup policies locked for deletion. If you have any chance to start with a new SCV box, I would recommend to do.
Hope this helps. Good luck!
Regards,
Simon