RE: Urgent: Prodution database recovery

From: Lord, David - CSG <David.Lord_at_hayscsg.com>
Date: Thu, 30 May 2002 02:03:44 -0800
Message-ID: <F001.0046F34B.20020530020344@fatcity.com>

Don't know whether this is of any use, but could it be that you still have a hardware fault that is causing your restore to become corrupted?

Regards
David Lord

> -----Original Message-----
> From: Hand, Michael T [mailto:HANDM_at_polaroid.com]
> Sent: 30 May 2002 10:23
> To: Multiple recipients of list ORACLE-L
> Subject: Urgent: Prodution database recovery
>
>
> Env: 8.1.7.3
> Compaq Alpha Tru64 5.1a
>
> An apparent hardware problem caused corrupt blocks ora-600
> [12700] to be
> detected. Analyze table validate structure confirmed this error. We
> started a PITR to a time before the errors were detected.
> All datafiles
> were restored (file copy took ~7.5hrs [614Gb]), current
> control files & redo
> logs (10 groups / 2 members).
>
> But when the alter database recover database until time 'xxx'
> is issued, a
> corrupt header is detected in one of the datafiles
> (ora1122/1251). Now this
> is a disk mirror split backup. We've used this process to create a
> reporting database copy for years and the reporting copy was
> build cleanly
> from the same source several hours after the backup copy.
> DBverify against
> the split backup copy and against the restored file (with the corrupt
> header) detect no errors but return diffent results for
> used/free/other
> blocks.
>
> Now, this first attempt at recovery opened about 1/3 of the
> datafiles. My
> thought was to restore these ~100 datafile again and retry
> the recovery.
>
> Right now I'm a little bleary-eyed so any suggestions would
> be welcome.
>
> Thanks,
> Mike Hand
> Polaroid Corp.
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Hand, Michael T
> INET: HANDM_at_polaroid.com
>
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---

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Lord, David - CSG
  INET: David.Lord_at_hayscsg.com

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Received on Thu May 30 2002 - 05:03:44 CDT