A.pSeries and xSeries use different file systems. Consolidating Storage and backup is not achievable.
B.Consolidation is possible by connecting pSeries local storage to the xSeries SQL server using the IXA adapter.
C.Storage consolidation can be achieved by connecting the pSeries and xSeries servers to a common DS4000 storage server.
D.Storage consolidation is only achievable when raw file systems are used by the databases and both servers run the same Linux file system (e.g., EXT3 or Reiser).