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Linux and the mystery of RAID - Linux Setup, Configuration & Administration

Hi, Wonder if anyone can help. I'm looking for any websites/articles that give a good introduction to using RAID on a Linux (x86) machine. Particularly answering following questions: - How does RAID actually work? If I have two 120 GB IDE hard drives, will RAID enable me to set them up such that any changes to one will be automatically reflected on the other? If one dies, will the other automatically kick in such that users notice no difference? Is that actually how it works in practice or is it just a dream? - How does RAID actually do what ...

  1. #1

    Default Linux and the mystery of RAID

    Hi,

    Wonder if anyone can help. I'm looking for any websites/articles that
    give a good introduction to using RAID on a Linux (x86) machine.
    Particularly answering following questions:

    - How does RAID actually work? If I have two 120 GB IDE hard drives,
    will RAID enable me to set them up such that any changes to one will
    be automatically reflected on the other? If one dies, will the other
    automatically kick in such that users notice no difference? Is that
    actually how it works in practice or is it just a dream?
    - How does RAID actually do what it does?
    - Supposing I buy a DELL PowerEdge 600SC with a CERC ATA100 IDE Raid
    Controller (+206) - is this a good RAID controller? Will it need
    special wierd software, or is it pretty standard as RAID goes?
    - In Linux, if I buy a machine with a RAID controller will I also need
    to setup some software - if so - which software?
    - If I partition one drive, e.g. into C (20GB), D (100GB) - will that
    automatically happen on the other drive?
    - What's the difference between RAID 0, RAID 1, etc ...... ?

    Thanks for any help and anyones time,
    Steve.
    Steve Guest

  2. #2

    Default Re: Linux and the mystery of RAID

    Steve Jenkins <com> wrote:
    [..] 

    Basically.

    I'd suggest to read the various raid HOWTO (www.tldp.org) and come
    back if you have a question that isn't answered.

    [..]

    --
    Michael Heiming

    Remove +SIGNS and www. if you expect an answer, sorry for
    inconvenience, but I get tons of SPAM
    Michael Guest

  3. #3

    Default Re: Linux and the mystery of RAID

    Steve Jenkins <com> wrote: 

    If you want to mirror the drives, you probably want RAID-1 which will mirror
    the two drives. And yes, if one drive dies then the other will take over and
    you can put a new one in and it will rebuild the image if one fails. I dont
    know anything about hardware RAID though, but I have foind that software
    RAID works well in linux. Heres the HOWTO I used to set up software RAID:

    http://www.tldp.org/HOWTO/Software-RAID-HOWTO.html

    -bob
    bob Guest

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