Re: How Consistent reads work in Exadata ?

From: Greg Rahn <greg_at_structureddata.org>
Date: Fri, 24 Jul 2009 07:59:21 -0700
Message-ID: <a9c093440907240759w56fc1626k784b765c4739d16f_at_mail.gmail.com>



Blocks with a SCN from the future are sent back in their entirety and reconstructed via undo in the db grid.

On Wed, Jul 22, 2009 at 8:25 PM, Jurijs
Velikanovs<j.velikanovs_at_gmail.com> wrote:
> How read consistency is ensured during Smart Scan Offload processing?
> Does Oracle reconstruct consistent image of a block on Database Cell
> or on Storage cell?

-- 
Regards,
Greg Rahn
http://structureddata.org
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http://www.freelists.org/webpage/oracle-l
Received on Fri Jul 24 2009 - 09:59:21 CDT

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