I had a bad combo of user/password. After the upgrade, I created a new account and applied that. I noticed it was helpful to go ahead and restart the service first on Unified Manager followed by Perf Mgr. Pairing showed up healthy.
The way to resolve it is to modify full integration settings (if option is enabled). Once you start to go through the diffrenet fields you will find that one of the opttions is a new account, called publisher admin.
6.4 did not have this account in the past, that is why the error is coming up. Once you set username and passwd for the publisher account and restart Performance manager services, OCUM will stop displaying the error.
unfortunately you missed the window of opportunity.
Both versions, 6.4 and 7.0 are rather old and had their End of Version Support date back in January.
With this date the release is being pulled from our download site and all content is archived as there is no more maintenance on any of the materials and there were no security fixes in 7.0 since May 2017.
So unfortunately that leaves you with two choices only
#1 Install a more recent version from scratch. You won't be able to take historical data along.
#2 Find somebody in the greater NetApp community who happens to have kept a version of the 7.0 install/update file
Btw. 7.1 has already reached End of Engineering support (meaning no more code maintenance) and will reach End of Version Support by December 2018.
So best to go with at least 7.2 or even better, 7.3.