Re: Teradata article about exadata
- From: Justin Mungal <justin@xxxxxxx>
- To: Chris Stephens <Chris.Stephens@xxxxxxx>
- Date: Wed, 27 Nov 2013 08:31:37 -0600
*Oracle advocates the SAME allocation policy for data warehousing because
it believes that in its shared disk environment this policy optimizes
access performance across diverse access patterns to different tables.
While it’s possible to control data allocation manually, as the number of
tables grows, the complexity of specifying data placement manually becomes
quickly unmanageable.*
Hmm. The paper predates 12c ADO, So I'm guessing they consider 11g ILM to
be "manual" data allocation that quickly becomes unmanageable?
Marketing...
On Wed, Nov 27, 2013 at 8:19 AM, Stephens, Chris <Chris.Stephens@xxxxxxx>wrote:
> SGA/buffer cache and all the locks/latches/mutexes necessary to
> coordinate access to those buffers.
>
> Teradata doesn't implement acid as far as I know.
>
>
>
>
> -----Original Message-----
> *From: *Dba DBA [oracledbaquestions@xxxxxxxxx]
> *Sent: *Tuesday, November 26, 2013 11:02 PM Central Standard Time
> *To: *ORACLE-L
> *Subject: *Teradata article about exadata
>
> This is a marketing article. I have not used teradata or exadata. I think
> Teradata is basically Oracle running on custom hardware sold by Oracle that
> is specialized for DB performance.�
>
> anyone know what they mean by "shared disk"? Its on page 2.�
> I'd like to avoid an oracle fan argument. I know people who have used
> teradata and find it a very a good product.�
>
> www.*teradata*.com/white-papers/*Exadata*-is-Still-Oracle/
>
> While Exadata improves Oracle�s I/O performance, Exadata
> does not tackle Oracle�s underlying performance and scalability
> problems with large-scale data warehousing that stem from
> its shared disk architectural foundation.
>
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