IBM® CommonStore for SAP provides archiving capabilities that help SAP users run their businesses more efficiently.It provides access to business information, supports the transfer of older information to lower cost disk and tape and reduces unnecessary data redundancy.With IBM CommonStore for SAP software* you can trim the size of your SAP databases. Application information archived through CommonStore for SAP software can be stored on an external repository.
http://www-01.ibm.com/software/data/commonstore/sap