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Raid 5 Vs Raid 0

  • System used for testing:
    HP ML350 G5 quad CPU with 4GB RAM
    Five Seagate disks and Perc6i with 256MB

  • For benchmarking we used CrystalDisk and HDTune

  • Please see CrystalDisk results below

  • Raid 5

  • Raid 0

  • As expected Raid 0 performed much better

  • Performance numbers for Raid 0 are starting to push limitations of the raid card

  • We will run some test with 8 disks to see limitations of Perc6i raid card



  • Now lets take a look at the results of HDTune

  • Raid 5

  • Raid 0

  • Raid 5

  • Raid 0

  • Conclusion

  • We already new that Raid 0 would perform better than Raid 5, the test above confirmed our prediction. We will also compare results when 8 disks are used in Raid 0, Raid 5 and Raid 6.