Do you use a RAID array setup for speed?

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  • V_RocKs
    Damn Right I Kiss Ass!
    • Nov 2003
    • 32449

    #1

    Do you use a RAID array setup for speed?

    If you do, which did you go with and did you notice any speed enhancement?
  • Swish
    Confirmed User
    • Mar 2006
    • 1421

    #2
    RAID 5, huge difference.


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    • aflex
      Confirmed User
      • Oct 2002
      • 3127

      #3
      Raid 1+0
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      • aflex
        Confirmed User
        • Oct 2002
        • 3127

        #4
        Originally posted by Swish
        RAID 5, huge difference.
        really not sure why you recommend raid 5 for speed.
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        • fuzzylogic
          Confirmed User
          • Jun 2004
          • 4796

          #5
          raid 5 is not the best array for speed.

          look on the internet for breakdowns of raid arrays regarding speed vs. data security.

          if ur interested in speed use raid 0 which offers no failure security but does offer the highest speed of any raid array.

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          • aflex
            Confirmed User
            • Oct 2002
            • 3127

            #6
            Originally posted by fuzzylogic
            raid 5 is not the best array for speed.

            look on the internet for breakdowns of raid arrays regarding speed vs. data security.

            if ur interested in speed use raid 0 which offers no failure security but does offer the highest speed of any raid array.
            i agree.. just becareful with just RAID 0.. if one drive fails, youre toast..

            i really like RAID 1+0.. has some failure security and speed at the expense of usable diskspace.. many people use RAID5 so they only lose one disk of available space (parity).
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            • Pointless
              Confirmed User
              • Jan 2003
              • 2142

              #7
              raid +1

              raid 5 on linux -1 *power 8

              on intel raid 0,1 or 5 does not much mater
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              • L0stMind
                Confirmed User
                • Sep 2002
                • 1681

                #8
                we've actually noticed slower performance going with raid 5 over single disk operations.

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                • Pointless
                  Confirmed User
                  • Jan 2003
                  • 2142

                  #9
                  Originally posted by L0stMind
                  we've actually noticed slower performance going with raid 5 over single disk operations.
                  well i think you are wrong

                  thats impossible
                  355 north
                  Adultdatelink.com

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                  • martinsc
                    Too lazy to set a custom title
                    • Jun 2005
                    • 27047

                    #10
                    Originally posted by aflex
                    Raid 1+0

                    the only way to go...
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                    • fuzzylogic
                      Confirmed User
                      • Jun 2004
                      • 4796

                      #11
                      Originally posted by Pointless
                      well i think you are wrong

                      thats impossible
                      and why is that impossible

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                      • gooddomains
                        Too lazy to set a custom title
                        • Jul 2003
                        • 10127

                        #12
                        raid 1+0

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                        • NetRodent
                          Confirmed User
                          • Jan 2002
                          • 3985

                          #13
                          When you say "speed" are you referring to transfer or seek speed? There's a big difference between a system that deals with large files read mostly sequentially (ie movies) and a system with lots of small or highly fragmented files (ie a database) where the disk head has to move around a lot.
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                          • V_RocKs
                            Damn Right I Kiss Ass!
                            • Nov 2003
                            • 32449

                            #14
                            Hmm... Looked into it...

                            Raid 0 - Fastest. Takes 3 disks and uses them in unison.
                            Raid 1 - Slowest. Takes 3 disks and mirrors them. No performance enhancement.
                            Raid 3 - Costs to much and no enhancement.
                            Raid 5 - Reads fast (but not faster) but requires memory and should use more than one controller to keep up with non raid speeds.
                            Raid 1+0 (0+1)(10) - Best of both worlds... But obviously more expensive.

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                            • notabook
                              Confirmed User
                              • Apr 2006
                              • 9748

                              #15
                              Originally posted by V_RocKs
                              Hmm... Looked into it...

                              Raid 0 - Fastest. Takes 3 disks and uses them in unison.
                              Raid 1 - Slowest. Takes 3 disks and mirrors them. No performance enhancement.
                              Raid 3 - Costs to much and no enhancement.
                              Raid 5 - Reads fast (but not faster) but requires memory and should use more than one controller to keep up with non raid speeds.
                              Raid 1+0 (0+1)(10) - Best of both worlds... But obviously more expensive.
                              Raid 0 - Can work with minimum of two disks, is fastest, no redundancy. You lose 1 drive you are out.
                              Raid 1 - Cannot work with 3 disks, must be equal numbers. 2/4/6/8/etc. Great redundancy but expensive (one hd per hd). Slow, but not as slow as Raid 10.
                              Raid 3 - Dunno, havn't had any experience with it.
                              Raid 5 - 3 absolute minimum, 5 recommended minimum (for performance + less loss of storage). Hardware Raid-5 is great, Software Raid-5 is pretty sluggish but still workable. Very redundant, can lose one HD and array be fine. A 5 HD array will lose about 22% of storage to go for redundancy.
                              Raid 1+0 - Same as Raid 3 (that is I don't have enough experience with it to talk about it).

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