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Re: Database Down

From: Rachel Carmichael <carmichr_at_hotmail.com>
Date: Wed, 23 May 2001 14:18:14 -0700
Message-ID: <F001.0030C80A.20010523135049@fatcity.com>

Jared,

as I understand it, the original controlfile allows you to recover until the SCN's all match the one in the controlfile. A backup controlfile assumes that you are not certain of what the final SCN is and so allows you to continue recovering past the backup time.

I *think* this is the premise behind the standby controlfile. I know that you could mimic standby in earlier versions of 7 by doing this.. and just recovering until you decided to stop moving archive logs over.

Warning though -- you WILL have to open with resetlogs if you use the backup controlfile because Oracle won't be able to tell when it should assume recovery is complete.

Rachel

>From: Jared Still <jkstill_at_cybcon.com>
>Reply-To: ORACLE-L_at_fatcity.com
>To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
>Subject: Re: Database Down
>Date: Wed, 23 May 2001 08:31:50 -0800
>
>On Wednesday 23 May 2001 01:00, Paul Drake wrote:
> >
> > 0. caffeine.
>
>Agreed.
>
> > 2. You *will* be performing incomplete recovery. Recover until cancel,
> > preferably with a backup controlfile.
> > Did you create a backup controlfile as part of the hot backup on May
> > 11th? Restore with that controlfile.
>
>Is there a particular reason for recommending the backup controlfile?
>
>Shouldn't be needed unless the controlfile has been lost.
>
> > 3. After the recovery is completed (you've opened RESETLOGS) close the
> > database and get a *full* cold backup. Fight the urge to *get the
>
>Some repetition for emphasis here. As Paul says, a cold backup must be
>completed before any work is done on the database.
>
>
>Some add'l advice for Laura. Read Rama Velpuri's book 'Oracle Backup
>and Recovery Handbook' cover to cover, and do all of the exercises. It
>will make an immense difference in your understanding of recovery.
>
>Backup is easy, recovery is not always so.
>
>Jared
>--
>Please see the official ORACLE-L FAQ: http://www.orafaq.com
>--
>Author: Jared Still
> INET: jkstill_at_cybcon.com
>
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Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Rachel Carmichael
  INET: carmichr_at_hotmail.com

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Received on Wed May 23 2001 - 16:18:14 CDT

Original text of this message

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