Re: RAID 1 & Oracle problems?

From: Dave Hau <davehau_nospam_123_at_nospam_netscape.net>
Date: Fri, 20 Jun 2003 21:36:11 GMT
Message-ID: <3EF37E4A.9030302@nospam_netscape.net>

Sybrand Bakker wrote:
> On Fri, 20 Jun 2003 19:09:57 GMT, Dave Hau
> <davehau_nospam_123_at_nospam_netscape.net> wrote:
>
>

>>The solution is to turn on dirty region logging in the 
>>volume manager.
>>
>>Cheers,

>
>
>
> The solution is not to rely on hardware mirroring for critical files,
> which is actually what Oracle advises. So always software mirror your
> redolog files, and the situation you describe isn't likely going to
> happen.

Software mirroring has the same risk of mirror out of sync in case of power outage. You still need to enable dirty region logging.

Cheers,
Dave

>
>
> Sybrand Bakker, Senior Oracle DBA
>
> To reply remove -verwijderdit from my e-mail address
Received on Fri Jun 20 2003 - 16:36:11 CDT