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Re: DB mirroring

From: Carel-Jan Engel <cjpengel.dbalert_at_xs4all.nl>
Date: Wed, 14 Jul 2004 01:44:52 +0200
Message-Id: <6.0.1.1.0.20040714014013.443dfa30@pop.xs4all.nl>


At 05:12 PM 7/13/2004, you wrote:
>
>Also, you may consider harware mirrorring (thinking about features such as
>EMC's SRDF).

SRDF might work well, but takes more bandwith, i.e. not the nice redo-forwarding, but replicating blocks (or even tracks) as a result of online redo writes (multi-member redo?), redo archiving, controlfile updates and the datafile updates. Aprt from that I very much like the DELAY in DataGuard, which might give you (without jeopardizing the replication the the standby) a timeframe to recover from human errors before they actually reach the standby database.

Regards, Carel-Jan

===
If you think education is expensive, try ignorance. (Derek Bok) ===

>Regards,
>
>Stephane Faroult
>
>On Tue, 13 Jul 2004 16:40 , Morten <lists_at_kikobu.com> sent:
>
>
>Hi.
>
>I have two servers A and B. They are physically separated, and are only
>allowed to communicate over LAN (ie. no shared storage).



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Received on Tue Jul 13 2004 - 18:32:29 CDT

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