ST500DM002-1BD142 ATA HD - Maximum Reading Speed

Q

What is maximum reading speed of the Seagate ST500DM002-1BD142 ATA HD?

✍: FYIcenter.com

A

The best way to find out the maximum reading speed of your Seagate ST500DM002-1BD142 ATA HD is to run reading tests with a single large block of different block sizes:

sqlio -LS -kR -i1 -f1 -t1 -s30 -p0 ...

If we run SQLIO with above options and different block sizes, we should be able to find the maximum reading speed:

             Throughput   Throughput   Latency
Block Size      MBs/sec      IOs/sec        ms
----------   ----------   ----------   -------
      -b16        77.76      4977.07         0
      -b64       125.67      2010.77         0
     -b256       168.28       673.14         1
    -b1024       216.56       216.56         2
    -b4096        96.37        24.09        40
   -b16384        98.49         6.15       161
   -b65536       109.49         1.71       584
  -b262144       103.48         0.40      2473

As you can see, the maximum reading speed, 216.56 MBs/sec is reached with a block size of "-b1024", or 1 MB. As the block size increases higher and higher, the reading speed lowers to about 100 MBs/sec.

 

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2019-08-08, 193👍, 0💬