I recently in the study and set up oracle 11 g dataguard, consult online tutorials, there is a problem hasn't been understood;
Tutorial said, dataguard want two db_name, db_unique_name different library ,
That is the two libraries how to create, it is:
(1) copy a master library the same and library, and then only change the db_unique_name for libraries?
(2) or for library to build library? Library such as the main library is the former, then future use dbca to build a orcldg database, and then separately revise for the main library and library db_name, for the former, so?
The problem for many days, causing the dataguard hasn't been deployed, I now only use method is 1, but there is a problem, and also is not very consistent, and online said please tell station C a great god, to thank!
Attached: refer to the website, for reference only, thank you for the original;
http://blog.csdn.net/gumengkai/article/details/53363502
http://blog.csdn.net/shiyu1157758655/article/details/55253132

CodePudding user response:

See the official document: http://docs.oracle.com/cd/E11882_01/server.112/e41134/create_ps.htm#SBYDB00200

Here recommend using rman library copy preparation, if the library is small, completely can use cold standby mode, you said the DB_UNIQUE_NAME are nothing more than a parameter, change easily,