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how many disks needed for raid 5??

September 28th, 2010 Leave a comment Go to comments

I came across this question, asking myself every once in awhile when ordering new hardware. How many disks are needed to setup a server with RAID 5 configuration?

Here is a visual of how many you need…. 🙂


The minimum is 3 but it’s recommended to get 4 disks of similar size/type and the 4th one can be used for parity.

Categories: General, linux Tags: ,
  1. April 26th, 2012 at 21:32 | #1

    i think raid5 performance is maximum with 5 disks

  2. April 26th, 2012 at 21:33 | #2

    it is a distributed parity
    so you can not use a single disk for parity

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