SQL Server Performance

Raid 50 vs Raid 5

Discussion in 'Performance Tuning for Hardware Configurations' started by l0stpr0phet, Jun 21, 2006.

  1. l0stpr0phet New Member

    Hi,
    Does anyone know how to calculate Raid 50 IO/sec compared to Raid 5.

    The Problem:
    Our live server(Raid5 on san - fibre link) is currently 33% down on write performance compared to our application developers running Raid50. I was wondering if this could be the problem I have heard raid 50 has better performance but just how much better?
  2. joechang New Member

    raid 50 usually means 2 identical raid 5 arrays mirrored together for additional fault tolerance
    which means more over head

    also, you need to know the number of disks, rpm etc
    then you can only calculate a theoretical number, which most controllers can't do anyways

    i think your problem is somewhere else, not related to the 5 vs 50 config

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