Answer

Oracle backup and recovery strategies: Export dump vs. RMAN

I have always done my backups with exports on a time basis to a remote site. I also run a script to pre-create users and tablespaces; that way I can change platforms if needed. Some places say I can only use RMAN to do backups. What is your opinion?

    Requires Free Membership to View

Using exports for your backups are a nice way to capture a snapshot in time of your database. My biggest warning is that you should use the CONSISTENT=Y to ensure the data in this snapshot is consistent across the board. The export dumps do have their place in a solid backup and recovery strategy. From the export dump, you are able to easily recover a procedure or view that was mistakenly dropped. The export dump is a nice way to restore the data to a different OS if needed.

That being said, using export for your backups does limit your recovery options. You cannot perform point-in-time recovery. You cannot roll forward any transactions performed after the export dump was created. So my advice is to use exports for part of your backup strategy but to also employ RMAN as well.

 

This was first published in June 2010

There are Comments. Add yours.

 
TIP: Want to include a code block in your comment? Use <pre> or <code> tags around the desired text. Ex: <code>insert code</code>

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
Sort by: OldestNewest

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to: