3ware 8000 and 9500S Serial ATA controllers only support UltraDMA-100/133 drives when using the parallel-to-serial ATA converter. This message indicates that an unsupported drive was detected during rollcall or a hot swap. This message could also indicate that the parallel-to-serial converter was jumpered incorrectly.
Use a parallel ATA drive which supports UDMA 100 or 133 and check that the parallel-to-serial converter was correctly jumpered to correspond to UDMA 100 or 133 drives.