I've found many posts for oracle clusterware 11gr2 database 10gr2 but I've found also many problem that seems to be ignored or, better, are getting me mad!
Oracle say that when you have a database 10gR2 in a cluster running clusterware 11gR2 you have to add database with srvctl command from database 10gR2 oracle home. This work. But you are not be able to bring up or down database. If you check your resource configuration with command crsctl config res ora.YOURDB.db you find few strange, missing or misconfigured, entries, but with one that is quite curious:
Ok, why? Why with srvctl command from 10gR2 home you get, for a single instance database (neither RAC nor RAC One), a strange configuration calling a RAC wrapper in 11gR2 home?
I think, even if oracle is debugging this problem, I'll have to configure manually action script to get database up and down. This hoping clusterware is able to do it correctly because currently I've also found that not always resource dependencies and order is respected!