Need information/advice on dataware House on 11g compression

We have an initiative to compress our constantly growing data warehouse.

Is level operating system AIX, db version 11 GR 1 material, will go to 11 GR 2.

We would like to know where I can get a link about what is best to apply a reclassification compression in data warehouse db.

I tried the oracle documentation and don't know where to look.

and more compression is a licensed product? No performance issues? and practical advice are appreciated here.

Compression of the table requires no any key that is the only compression is made through direct additional licenses insert good enough for a data warehouse. Obtain and maintain a compression for regular and up-to-date inserts to a license for Advanced Compression.

Performance for inserts using the direct method does not seem to impact to load performance, but updates and regular inserts take somewhat of a sudden when you use compression. Queries that have all significant IO operations seem to benefit the most compression and more the number of I/o operations more than the impact on performance tends to be. Remember that compression takes a CPU hit for compression and compression operations, while this doesn't seem to be really big, that this is a consideration if your system already has problems of CPU resources.

I found that partitioning and compression used together provides the best performance when using the partition key and partitioning offers benefits for facilities management, scope/level partitioning offers the benefits of a data warehouse management.

A few references in addition to the documentation which is a decent place to start research on google about Oracle Advanced Compression also returns tons of results:
http://www.TechRepublic.com/whitepapers/Oracle-database-11gr2-reduces-storage-costs-and-improves-performance/1728273

Leans on the table and 11g advanced compression
http://myeverydayoracle.blogspot.com/2010/11/Oracle-10G-compression-vs-11gs-advanced.html

Basis of the Exaplinations and the examples for compression
http://practical-tech.blogspot.com/2012/01/Oracle-11gr2-table-level-compression.html

Partitioning
http://www.Oracle.com/technetwork/database/bi-Datawarehousing/TWP-partitioning-11gr2-2010-10-189137.PDF
http://www.Oracle.com/technetwork/database/options/partitioning/DS-partitioning-11gr2-2009-09-134551.PDF

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