The Data Volume Management Workcenter is a toolset in SAP Solution Manager to create transparancy about your data allocation across your whole system landscape and helps you with keeping track on the success of your data archiving activities.
We released a user guide which explains the purpose of the various dashboards and the navigation in more detail.
The document can be accessed on
https://wiki.scn.sap.com/wiki/display/TechOps/Data+Volume+Management in section 'SAP Support' -> How-To Guides
Your feedback can be posted here and is highly appreciated.
Thanks in advance!
Claudia Semmler, SAP