Hi Probably you are hitting Bug 13362079 - HCC compression should not be allowed on dNFS with non ZFS or Pillar? I am wondering because I am not very sure where is HCC done, if it is done in the DB how the hcc algorithm applies for some blocks (pillar) and some not (EVA), if it works shouldnt be a performance hit? Thanks! -- //www.freelists.org/webpage/oracle-l