SAP Data Archiving in R/3 4.6C and ECC 6.0.

Hi Guys,

Need some suggestions,

We currently working on SAP R/3 4.6 and have plans to upgrade it to ECC 6.0,

In the mean time there is an requirement for SAP Data Archiving for reducing the database size and increase system performance.So wanted to know if its better to do Data Archiving before upgrade or after. Technically which will be comfortable, Also wanted to know if any advanced method available in ECC 6.0 compared to SAP R/3 4.6.

Please provide your valuable suggestion.

Thanks and Regards

Deepu