sraw against 80MB Quantum ProDrive ELS

 Output  of  sraw  is  a  set  of  lines, 4 numbers per line: blocksize, elapsed time, nblocks and throughput (in bytes per second).

aperez@q6600:~$ sudo sraw /dev/sdd
blocksize    etime    nblocks   bytes/sec (throughput)
 32768       3.6781   10048     1398704
 36864       5.8789   10008      871609
 40960       5.6815   10000      901167
 45056       5.4786   10032      937541
 49152       5.3595   10080      962953
 53248       5.2272   10088      988104
 57344       5.1081   10080     1010340
 61440       5.0121   10080     1029697
 65536       4.9444   10112     1047119
 69632       4.8628   10064     1059621
 73728       4.8032   10080     1074476
 77824       4.7138   10032     1089651
 81920       4.6880   10080     1100884
 86016       4.6354   10080     1113387
 90112       4.5500   10032     1128884
 94208       4.5569   10120     1137050
 98304       4.5588   10176     1142858
102400       4.4385   10000     1153543
106496       4.4924   10192     1161596
110592       4.4379   10152     1171246
114688       4.3976   10080     1173579
118784       4.4196   10208     1182575
122880       4.3433   10080     1188247
126976       4.3601   10168     1194022
131072       4.3490   10240     1205527
aperez@q6600:~$
$ lsscsi --list
[2:0:0:0]    disk    QUANTUM  CTS80S           4.2   /dev/sdd
  device_blocked=0
  iocounterbits=32
  iodone_cnt=0x1fac
  ioerr_cnt=0xa
  iorequest_cnt=0x2043
  queue_depth=2
  queue_type=none
  scsi_level=3
  state=running
  timeout=30
  type=0