I've followed the discussion started by „fejf“. Indeed i have the same problem that pvmove exits with an error when i try to move PEs from one PV to another. To exclude the possibility of a defect HD i tried to reproduce the error on several independent systems. The error always occurs when i try to move a complete filled PV to another. In this case all but the last PE on this PV are moved. The last one isn't movable whatever i did. If the PV wasn't filled at 100% everything goes fine. To reproduce the error try the following: - create a VG with three Pvs at the same size - create a LV which covers the first PV completely and the second partly - try to all PEs from the first PV to the third - the error will occur - move the moved PEs back to the first PV - everything goes fine - try to move the PEs lying on the second PV to the third - everything goes fine ...any ideas? Andreas...