Re: Setting up storage Array for ASM

From: goran bogdanovic <>
Date: Wed, 20 Apr 2011 13:04:07 +0200
Message-ID: <>

Hi Steven,

apart from OCR/Voting disk requiremets, when designing SAN Storage for database, following need to be done considered:

- find out application I/O characteristis
- find out bandwith limits for all I/O stack components
- understand reqired RPO, RTO, SLA's

The resulted design should be throughput od not capacity oriented.


On Wed, Apr 20, 2011 at 4:40 AM, Steven Andrew <> wrote:

> Hello Everyone,
> We are building up a system from scratch and wanted to follow the best
> practices in setting up SAN Storage Array for ASM. With 22 disks in the
> array for use, i was planning on doing 11 + 11 in Raid 1/0 setup with
> maximum stripe possible within the array and carve out 3 x 2G LUNs for
> vote_ocr and 2 x 1TB LUNs for both DATA and FRA diskgroup. vote-ocr DGs
> will use normal redundancy and database in external redundancy. This will be
> on 11gR2 + Linux 5.5 + 4 node RAC cluster to house a mixed (70% oltp + 30%
> DDS) workload application. Wondering if anyone have an opinion or best
> practices generally implemented for these setups.
> Thanks
> Steven Andrew

Received on Wed Apr 20 2011 - 06:04:07 CDT

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