HDD test speed

# hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 3134 MB in 2.00 seconds = 1569.12 MB/sec
Timing buffered disk reads: 242 MB in 3.00 seconds = 80.55 MB/sec

# hdparm -tT /dev/sda
/dev/hda:
Timing cached reads: 176 MB in 2.00 seconds = 87.87 MB/sec
Timing buffered disk reads: 86 MB in 3.05 seconds = 28.16 MB/sec

# hdparm -tT /dev/sda
/dev/hdb:
Timing cached reads: 844 MB in 2.00 seconds = 421.50 MB/sec
Timing buffered disk reads: 116 MB in 3.01 seconds = 38.55 MB/sec