Thanks Greg
Greg Rahn <greg_at_structureddata.org> wrote:
The functionality of an ASM disk group has not changed between 10gR1 and
10gR2.
Visit http://www.oracle.com/technology/products/database/asm/index.html
and download the 10gR2 version of "ASM Overview and Technical Best
Practices White Paper" or get it here:
http://www.oracle.com/technology/products/database/asm/pdf/asm_10gr2_bptwp_sept05.pdf
Regards,
Greg Rahn
http://structureddata.org
- Original Message --------
Subject: Re:RAC ASM question
From: Sanjay Mishra
To: rprabha01_at_gmail.com
Date: 3/6/2007 6:45 AM
> Thanks Rajeev and yes I had checked that very good paper. I know it
> has recommended that we should have only two DG for RACor Signle
> Instance like for DB file and one for FlashRecovey Area but the paper
> was written in 2004 with 10g Release 1 and so there might be any such
> recommendation for 10g Rel 2 or so.
>
> Tx
> Sanjay
>
>
>
> */Rajeev Prabhakar /* wrote:
>
> Sanjay,
>
> If you haven't already, you may want to go through the ASM best
> practices whitepaper.
>
> http://www.oracle.com/technology/products/database/asm/pdf/asm_bestpractices_9_7.pdf
>
> -Rajeev
>
> On 3/5/07, *Sanjay Mishra* > > wrote:
>
> Thanks Salem. Is there any benchmark or result or best
> practices that says that don't create more than x number of DG.
>
> Sanjay
>
>
> */Ghassan Salem > > /*wrote:
>
> Sanjay,
>
> 1. You can do it either way. The right way depends on
> your disks and disk layout. If you'll end up with
> the same disks in different diskgroups, I do not see
> the utility of using several ones. Having one DG
> allows for better spread of I/O. Having several DGs
> allows for more control on when to use redundancy
> (depending on app requirement, ...)
> 2. It's better to have a DG for FRA, as it's usage and
> redundancy req are different than 'normal' data.
>
> rgds
>
> On 3/3/07, *Sanjay Mishra *> > wrote:
>
> Hi
>
> I am building a RAC environment which will host 3
> Application Database. I am planning to create 4 Oracle
> Home like one for each Database and 4th one for ASM.
> This way I can patch any one without affecting others.
> 1. Now in order to ceate the Database in ASM, Can I
> create seperate Disk Group for each Application
> Database or I should create one big Disk Group.
> 2. What are the advantage/disadvantage of creating
> multiple diskgroups.
> 3. Is it good to create seperate Diskgrroup for each
> Redolog, Archivelog, Flashback and Data
>
> TIA
> Sanjay
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Received on Tue Mar 06 2007 - 13:43:52 CST
