Re: Confusion why online redo logs should never be backed up.

Argument? What argument?

Online redologs backups are meaningless by definition. They will be out-of-date as soon as something changes within the DB. You "backup" the redologs by mirroring.

Backup them up is not a problem apart from wasting a bit of tape space. Accidentally restoring backup redologs on top of current redologs is the real danger where you will loose information in the current, or any non-current un-archived redologs.

• Original Message ----- To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com> Sent: Friday, May 23, 2003 7:07 AM

> Rick - Is it a slow afternoon with you? Just thought you'd revive this old
> argument? I think the last time this was brought up the thread went for
> about a week.
>
> Dennis Williams
> DBA, 80%OCP, 100% DBA
> Lifetouch, Inc.
> dwilliams_at_lifetouch.com
>
>
> -----Original Message-----
> Sent: Thursday, May 22, 2003 1:27 PM
> To: Multiple recipients of list ORACLE-L
>
>
>
> Hi All,
>
> In Oracle8i Backup & Recovery Handbook pg 13 it states "Finally, online
> redo log files should never be backed up....So, it is good practice not to
> back up online log files for ANY kind of backup.
>
> Can someone clearly explain why this is recommended?
>
> Thanks
> Rick
>
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> Author:
> INET: Rick_Cale_at_teamhealth.com
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Author: Binley Lim
  INET: Binley.Lim_at_xtra.co.nz

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