Yeah, I guessed the same after reading the debianforum wiki 🙂
Results after running it a couple of times:
sudo hdparm -t /dev/sdb1 /dev/sdb1: Timing buffered disk reads: 192 MB in 3.00 seconds = 63.92 MB/sec Timing buffered disk reads: 200 MB in 3.00 seconds = 66.58 MB/sec Timing buffered disk reads: 224 MB in 3.01 seconds = 74.44 MB/sec Timing buffered disk reads: 236 MB in 3.01 seconds = 78.31 MB/sec Timing buffered disk reads: 248 MB in 3.01 seconds = 82.33 MB/sec Timing buffered disk reads: 234 MB in 3.01 seconds = 77.69 MB/sec