Chapter11-RMAN Backups
1、只有在RMAN下可以实现增量备份
2、Backup File Types
- Tablespaces
- Datafiles(current or copy)
- Control file(current or copy)
- Spfiles
- Archived logs
- Backup Sets
3、要执行RMAN数据库备份,必须要求Oracle Database Server必须处于archive mode下;
RMAN进行备份的时候,会将Online redo log files 进行一次alter system switch log file,然后再进行备份操作;把online redo log file的内容,写到archive log file里面,然后备份归档日志就可以了;因此RMAN不对online redo log file 做备份.
4、Backup Issues
- Backup datafiles
- Backup tablespaces
- Backup the control file
- Backup the server parameter file
- Backup the archived log files