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Resolved Does RAID 1 eliminate the need for a backup program?

Discussion in 'PC Hardware' started by cspgsl, 2009/12/26.

  1. 2009/12/26
    cspgsl Lifetime Subscription

    cspgsl Geek Member Thread Starter

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    I have a D-Link 323 NAS Network Storage Enclosure in which I have set up a RAID 1 configuration using two identical HDD's. I have mapped the network drive and moved My Documents and all other data files to it. As it is RAID 1 does this eliminate the need for backup software on my computer's internal HDD?

    I did this to create a more secure environment with respect to data loss but I am also new to this, hence the question.

    Any other advice on the concept gratefully received, thanks in advance.
     
  2. 2009/12/26
    Steve R Jones

    Steve R Jones SuperGeek Staff

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    I'm guessing that you understand that Raid 1 - what goes on the first drive is auto copied to the second drive...As long as the machine doesn't fry to the ground or get stolen - you'd be in pretty good shape.
     

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  4. 2009/12/26
    cspgsl Lifetime Subscription

    cspgsl Geek Member Thread Starter

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    Thanks Steve - that was my thought process when considering this setup. This is in my home office and I have thousands of images that I don't want to risk losing.

    I suppose that if I wanted to insert another layer of security I could backup the files that are on the NAS to another remote HDD and physically remove it from my location.
     
  5. 2009/12/26
    Arie

    Arie Administrator Administrator Staff

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    RAID1 is no substitute for a backup. If you delete or overwrite a file it will be gone... from both disks. RAID1 only helps you in one instance: hard drive failure.

    If one of the drives fails, you can just plug in a new drive, rebuild the (RAID) array, and you'd be at the same point before the failure.
     
    Arie,
    #4
  6. 2009/12/27
    cspgsl Lifetime Subscription

    cspgsl Geek Member Thread Starter

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    Thanks Arie - after thinking about your advice I see that you are absolutely correct.

    I think I was under the false impression that the RAID was the backup but of course, it isn't. Having a back up of what really amounts to my live files is obviously critical.
     

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