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Re: Creation of ASM Disk Group on Solaris 10 ?

From: Alex Gorbachev <ag_at_oracloid.com>
Date: Wed, 11 Jul 2007 08:31:56 -0400
Message-ID: <c2213f680707110531m10074d5en7e712949eb19f67b@mail.gmail.com>


[over-quoting repost]

Nothing might be wrong with this example. Basically, the collision is when ASM striping undoes hardware striping to a certain extent.

It may happen if you are unlucky enough to have certain combination of:

- Number of disks in the striped set
- Number of LUNs from that pool
- Stripe sizes
- Extent locations

Cheers,
Alex

On 7/11/07, LS Cheng <exriscer_at_gmail.com> wrote:
> Hi Alex
>
> When you say stripe collision do you mean hardware stripe larger than ASM or
> the other way round?
>
> For example HW RAID 0 stripe 64K and ASM 128K and 1MB, will that cause
> collision?
>
> Thanks
>
> --
> LSC

-- 
Alex Gorbachev, Oracle DBA Brewer, The Pythian Group
http://www.pythian.com/blogs/author/alex http://www.oracloid.com
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Received on Wed Jul 11 2007 - 07:31:56 CDT

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