Drive LSI Logical Volume 4TB hdparm -t /dev/sda Timing buffered disk reads: 1370 MB in 3.00 seconds = 456.66 MB/sec Drive SEAGATE ST2000NM003A hdparm -t /dev/sg2 Timing buffered disk reads: Drive SEAGATE ST2000NM003A hdparm -t /dev/sg3 Timing buffered disk reads: Drive SEAGATE ST2000NM003A hdparm -t /dev/sg4 Timing buffered disk reads: Drive SEAGATE ST2000NM003A hdparm -t /dev/sg5 Timing buffered disk reads: