Re: Sharing
- From: "Leyi Zhang (Kamus)" <kamusis@xxxxxxxxx>
- To: jeremy.schneider@xxxxxxxxxxxxxx
- Date: Fri, 20 Aug 2010 15:52:16 +0800
Just copy from *ASM Technical Best Practices [ID 265633.1]*
>To reduce the complexity of managing ASM and its diskgroups, Oracle
recommends that generally no
>more than two diskgroups be maintained and managed per RAC cluster or
single ASM instance
But keep in mind, to avoid single point failure, one diskgroup should
contain at least 2 failure group stored in separate storage box.
--
Kamus <kamusis@xxxxxxxxx>
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On Fri, Aug 20, 2010 at 12:16 AM, Jeremy Schneider <
jeremy.schneider@xxxxxxxxxxxxxx> wrote:
> Mike Killough wrote:
>
> 1) Multiple databases on 1 RAC.
>
> Hmmm... seems that all this new 11.2 policy-managed stuff is quite useless
> if you only have one database on a RAC. So I think it's safe to say that
> Oracle is moving in the direction of multiple databases per cluster.
>
>
> 2) Multiple databases sharing the same ASM disk groups.
>
> No deep thoughts here, though I would point out that multiple DGs is like
> having lots of tablespaces... without autoextend... better control, but lots
> more planning and management work. But sometimes a good idea.
>
>
>
> -- http://www.ardentperf.com
> +1 312-725-9249
>
> Jeremy Schneider
> Chicago
>
>
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