online backup of Oracle

Hello
What is the proper sequence of online backup with the mode "backup start/end? Currently we are something like a database set to begin the backup, backup of data files (either said by the way, include the controlfiles), place the database in the backup of the end, then save archived logs. The problem is when the resumption of the db, we get an ora-600, something certainly won't.

TIA

Hey, Lamont,

While you take a backup of the data files, you cannot take your controlfiles backup in the same order as it is already specified.

If you issue the "alter database backup bagin' command, then this will take the database from a backup mode, where you can take backup of the storage spaces. After the backup, you must write "alter tablespace end backup" command to release form the backup mode and it takes the normalmode.

To backup controlfile, you would write "alter database backup controlfile to trace /'.»» Backup of the controlfile is in any way connected with the begin backup mode or end backup.

I hope that this part is clear. Now to redo log backup, there is no such command to take the backup of the database line.
Basically, in online backup mode, redolog file backup can be taken. You can make a backup of all closed the file, controlfile and redo log file. But this is not possible while you are taking an online backup.

For example, you can specify, that how you take a backup of all these files in database three (datafile, controlfile and redolog file) at the same point of time?

Well, about the error ORA-600, it is usually for the corruption of block error. To do this, I can suggest to check the alert.log file and then put it in detail to understand the exact problem.

Thank you and best regards,
MSORA

Tags: Database

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