Partition on InfoCube F table for loading & query performance

I am thinking of creating partition on our SalesStatististics (Utility Ind) cube. The reasone why we are not dividing the cube into yearly/monthly cubes is because the posting trans can be back dated and maintaining all these InfoCubes would be hard.
In the partitioning of InfoCube by month, <b>I am thinking of running ABAP code in the process chains to drop the index on only the current partition</b>. I know that there could be a few transaction that might get directed to other partitions but not whole lot. I am trying to avoid deleting the index on the entire cube and then rebuilding them as it takes 5-6 hours.
Has anyone writen/used such code to drop index on a single partition. Or does anyone has a clue if this is an okay thing to do? Any ideas?
SYSTEM: BW3.5, Custom Utility SalesCube Statistics, Total: 1000 million recs, Each Delta about 700K records
The cube is extremly slow in loading as well as queries. I am also dividing the cube into yearly cubes but the current year would have monthly partitions. A multi-cube would be on top and an ODS would provide item level data before the cube.
thanksin advance...
Bilal

I'll post some of the specific questions later. It seems we do not get much response when overall design is the concern.
Thanks anyway.

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regds
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Haritha,
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oss note 120253 565725 670208
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565725
Symptom
This note contains recommendations for improving the load performance of ODS objects in Business Information Warehouse Release 3.0B and 3.1 Content.
Other terms
Business Information Warehouse, ODS object, BW, RSCUSTA2, RSADMINA
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Partition on InfoCube F table for loading & query performance

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