Comments on: adpatch fails- Cannot connect to RAC database Friends of Oracle and Java Wed, 15 Apr 2015 12:11:59 +0000 hourly 1 By: Karl r. Wed, 13 Sep 2006 13:27:48 +0000 That’s another RAC Story;
Increasingly complexity due to multi node architecture. Complex because the Oracle server was not planned/designed as a Cluster Database from the beginning.
It seems you made a very good job bypassing the problem.