# hdparm -t /dev/sda
/dev/sda: Timing buffered disk reads: 122 MB in 3.02 seconds = 40.42 MB/sec HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl for device
# hdparm /dev/sda
/dev/sda: IO_support = 0 (default 16-bit) readonly = 0 (off) readahead = 256 (on) geometry = 9729/255/63, sectors = 80026361856, start = 0