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  #1  
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Nicola Cisternino
 
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Default Big tables in enterprise scenario .... - 10-18-2009 , 02:36 PM






Hi all,
Some tables of a production DB (in an enterprise scenario) contain many
milions of rows ...
Is really advisable to create a custom dbspace for everyone of them ?
Does it produce performance improvements ?
Thanks.

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  #2  
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Glenn Paulley [Sybase iAnywhere]
 
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Default Re: Big tables in enterprise scenario .... - 10-19-2009 , 06:28 AM






Using additional dbspaces makes sense only when you can physically
separate the dbspaces onto separate disks, and thus control the
allocation of disk heads to the database as a whole. If you're using a
single disk, or a RAID or NAS back-end, there is little point to using
dbspaces unless you're running into the maximum size of a file on your
platform (Windows?), which is very large.

Glenn

Nicola Cisternino wrote:
Quote:
Hi all,
Some tables of a production DB (in an enterprise scenario) contain many
milions of rows ...
Is really advisable to create a custom dbspace for everyone of them ?
Does it produce performance improvements ?
Thanks.
--
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Director, Engineering (Query Processing)
Sybase iAnywhere

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  #3  
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David Kerber
 
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Default Re: Big tables in enterprise scenario .... - 10-19-2009 , 08:11 AM



In article <4adb6e4b$1@forums-1-dub>, ncisternino (AT) gmail (DOT) com says...
Quote:
Hi all,
Some tables of a production DB (in an enterprise scenario) contain many
milions of rows ...
How many million? I have two tables of 6M - 10M rows each in a single
production DB, and have no trouble keeping everything in a single file
on a single (RAIDed) HD.


Quote:
Is really advisable to create a custom dbspace for everyone of them ?
Does it produce performance improvements ?
Thanks.

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