Re: More than 2 ASM Diskgroups in a RAC Enviornment with 2 Databases
- From: Naqi Mirza <naqimirza@xxxxxxxxx>
- To: K Gopalakrishnan <kaygopal@xxxxxxxxx>, Oracle-l List <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 8 Mar 2007 23:05:55 -0800 (PST)
Gopal,
This is from the the ASM Best Practices Document on OTN. See page 12 of 39,
under diskgroups and databases:
.
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.
.
That said, I didn't mean to imply its not supported or not possible - I, only,
inferred this from the above.
That said, I proceeded to test the install, with the details below - and its
all good - works fine (so far).
Thanks
Naqi
----- Original Message ----
From: K Gopalakrishnan <kaygopal@xxxxxxxxx>
To: naqimirza@xxxxxxxxx; Oracle-l List <oracle-l@xxxxxxxxxxxxx>
Cc: racdba@xxxxxxxxxxxxx
Sent: Thursday, 8 March, 2007 9:12:52 PM
Subject: Re: More than 2 ASM Diskgroups in a RAC Enviornment with 2 Databases
Naqi,
Which document you are talking about? We never say 'no more than 2
disk groups per cluster'.
Btw your initial plan seems perfect.
-Gopal
On 3/7/07, Naqi Mirza <naqimirza@xxxxxxxxx> wrote:
>
> I see a similar question to this has already been posted, but just wondering
> if anyone's actually had to configure something like this before.
>
>
>
>
> ----- Original Message ----
> From: Naqi Mirza <naqimirza@xxxxxxxxx>
> To: oracle-l <oracle-l@xxxxxxxxxxxxx>
> Sent: Wednesday, 7 March, 2007 2:07:47 PM
> Subject: More than 2 ASM Diskgroups in a RAC Enviornment with 2 Databases
>
> Hi,
>
> ---- Start ----
> Config Details:
>
> 2 Node 10gR2 RAC
> HP-UX (PA-RISC) 64 Bit, 11.23
> Serviceguard 11.17
> ASM used as storage option for database and recovery files.
>
> ---- End ----
>
> This 2 node cluster will host 2 RAC databases. Looking at the best practices
> document for ASM, I see it says that typically you should have no more than
> 2 diskgroups per RAC cluster.
> However, the initial plan was to create 4 diskgroups - 2 for each database.
> Just wondering if anyone has done something similar to this, or if anyone
> has more than 1 rac database using asm as the storage?
>
> Thanks
>
> Naqi
>
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--
Best Regards,
K Gopalakrishnan
Co-Author: Oracle Wait Interface, Oracle Press 2004
http://www.amazon.com/exec/obidos/tg/detail/-/007222729X/
Author: Oracle Database 10g RAC Handbook, Oracle Press 2006
http://www.amazon.com/gp/product/007146509X/
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