(A control file tracks the physical components of the database. It is essential to the functioning of the database. Because of the importance of the control file, Oracle recommends that the control file be multiplexed. In other words, the control file should have multiple identical copies. For databases created with DBCA, three copies of the control file are automatically created and kept in sync with each other.)
(If any control file fails, then your database becomes unavailable. As long as you have a control file copy, however, you can shut down your database and re-create the failed control file from the copy, then restart your database. Another option is to delete the failed control file from the CONTROL_FILES initialization parameter and restart your database with the remaining control files.)作者: tacsoft 時間: 2011-07-13 08:47
內(nèi)容來自:Oracle 10g 管理員手冊
Oracle® Database Administrator's Guide
10g Release 2 (10.2)
Part Number B14231-02