benchmarking the storages: Promise VTrak m500i


After all strange things that we got to deal with using the Promise VTrak we made some benchmarks (which took about 10 hours each complete run).

So here are the results of the first test:

We made a Hardware RAID5 Volume with 5 drives which made a volume size of 1945310850 sectors = 949859 Megabyte.

Here are the results in all their beauty:

Interface-Transferrate with a blocksize of 128 sectors at 0.0 percent of the capacity:

sequential read rate medium (unthrottled): 43570 Kilobyte/s
sequential read rate Read-Ahead (Latency 1.62 ms): 39447 Kilobyte/s
repeatedly sequential read (“coretest”): 68155 Kilobyte/s

permanent transfer rate: (blocksize: 128 sectors):
read:

  • Average: 44896.2 Kilobyte/s
  • Minimum: 18416.7 Kilobyte/s
  • Maximum: 45645.9 Kilobyte/s

write:

  • Average: 29821.7 Kilobyte/s
  • Minimum: 12688.0 Kilobyte/s
  • Maximum: 30792.4 Kilobyte/s

access time read:

  • Average: 13.58 ms
  • Minimum: 4.13 ms
  • Maximum: 104.33 ms

access time write:

  • Average: 9.58 ms
  • Minimum: 0.48 ms
  • Maximum: 2930.85 ms

access time read (<504 MByte):

  • Average: 6.14 ms
  • Minimum: 0.48 ms
  • Maximum: 37.94 ms

access time write (<504 MByte):

  • Average: 3.74 ms
  • Minimum: 0.47 ms
  • Maximum: 1258.26 ms

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