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Setting up a Real-Time Data warehouse

I am currently working on building a real-time data mart. Am using DTS
as the ETL tool and MS SQL 2000 as the database. The current
infrastructure includes 2 4 Proc (1GHz) Xeon based servers, with 4 GB
of RAM. One server is used for ETL while the other is used as the
primary database.
Currently we are looking forward to a SAN implementation to improve
the speed of the database. The current size of the database is 80 GBs,
we are estimating it to grow near to 0.5 TB in the next 5 years. For
my Real time project I am planning to use MSMQ to stack and send the
primary keys to the DTS package which will then extract, transform and
load the data onto the warehouse.
I don't have much insight into the hardware requirements for building
and sustaining a real-time warehouse. If someone can give me the
industrial standards for real-time warehouses in both hardware, ETL
tools and the backend databases.
I have heard that Terradata and Informatica are good together for
large databases, also Oracle is one of the options but don't know how
much difference can it make when compared to MS SQL 2000 or the highly
anticipated 'YUKON'.

Jul 20 '05 #1
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