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From:Jon Drukman Date:August 22 2003 1:24am
Subject:Re: RAID or not?
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Lefevre, Steven wrote:

> I say go with RAID 5, on a controller card.
> Mirroring just gives you backup, and you lose half your diskspace. It offers
> no performance benefit, and actually the computer might have to work harder
> to make sure the drives are in sync.

that is not true.  mirroring gives you double the read speed and half 
the write speed.  RAID5 gives you less than half the write speed.

that's why i said if your database app is mostly selects go for 
mirroring.  the OP said his app is about 50% select, so i say mirroring 
is a good choice.

and hey, what's wrong with having a backup?  the computer doesn't work 
any harder, it's all handled through the RAID controller card anyway.


RAID or not?Jackson Miller21 Aug
  • Re: RAID or not?Jon Drukman21 Aug
    • Re: RAID or not?Jackson Miller21 Aug
      • RE: RAID or not?Steven) (Lefevre21 Aug
        • Re: RAID or not?David Griffiths21 Aug
        • Re: RAID or not?Per Andreas Buer21 Aug
        • Re: RAID or not?Jon Drukman22 Aug
          • Re: RAID or not?Dan Nelson22 Aug
          • RE: RAID or not?Steven) (Lefevre22 Aug
            • RE: RAID or not?Michael Loftis2 Sep
  • Re: RAID or not?Colbey21 Aug
  • Re: RAID or not?Per Andreas Buer21 Aug
RE: RAID or not?Alec.Cawley22 Aug
  • Re: RAID or not?Jim McAtee23 Aug
    • Re: RAID or not?Michael Loftis2 Sep
RE: RAID or not?Alec.Cawley22 Aug
Re: RAID or not?Alec.Cawley26 Aug