Planning a snapcenter 4.1 to 4.3 upgrade and want to confirm that once we deploy the data broker appliance for 4.3 and connect to vcenter that all the jobs etc will still remain active and running on the 4.1 device that is already connected the vcenter until we migrate them over via the Powershell command
Related to this when deploying 4.3 data broker will we end up with two snapcenter plugins in vcenter until we decommission the 4.1 server
At any time Vcenter server can hold one version of snapcenter vsphere plugin only.So when you deploy 4.3 SCV(data broker) the plugin will get updated to SCV 4.3 plugin and you will see only one plugin.
After the above step you can start migration of vsphere plugin using powershell command as mentioned in the documents.
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.