It looks like this could be a failing disk, however to be sure you might want to replace the SATA cable with a new latching one and then run the usual SMART tests via smartctl. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html