/dev/sda:
Timing cached reads: 7580 MB in 2.00 seconds = 3795.26 MB/sec
Timing buffered disk reads: 244 MB in 3.01 seconds = 80.95 MB/sec
product: SAMSUNG HD403LJ
/dev/sdb:
Timing cached reads: 7330 MB in 2.00 seconds = 3671.24 MB/sec
Timing buffered disk reads: 252 MB in 3.01 seconds = 83.78 MB/sec
product: SAMSUNG HD403LJ
/dev/sdc:
Timing cached reads: 7300 MB in 2.00 seconds = 3654.83 MB/sec
Timing buffered disk reads: 342 MB in 3.00 seconds = 113.85 MB/sec
product: SAMSUNG HD103UJ