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Thread: Which raid?

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  1. #1

    Which raid?

    Anyone have any thoughts regarding number of drives and which raid to use?
    I am currently using 1 x 1Tb drive...thinking of switching to either 2x 1Tb drive and raid 1 ..or 4 x 750 Gb drives and raid 5..
    All drives are sata 2, computer is core 2 duo @ 3.1 Ghz/core, 4 gig ram.

  2. #2
    Senior Member
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    2x 1T raid 1 is probably a better solution. Mirroring is much easier to deal with. But for a home server, it might be better to just use an external USB drive and do drive to drive backups.

  3. #3
    Senior Member agillis's Avatar
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    RAID is not a good backup solution. If you need more space you can span your music storage partition access several drives. Backups should always be done to another box or a USB disk that can be powered off and disconnected to prevent damage from power hits.

    95% of failures to PCs are caused by excess heat buildup or electrical surges. Both of these will take out more than one disk in your RAID array.
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  4. #4
    Senior Member pfarrell's Avatar
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    Which raid? NONE!

    agillis wrote:
    > RAID is not a good backup solution.


    Sorry, I have to change this:

    RAID is not backup. Period.
    When you have valuable media or data on your disks, you have to have
    backup. And RAID is not backup.

    I've never seen any value to RAID for a SqueezeCenter server. I find it
    easier to just buy a $100 disk at my local computer store, connect it,
    copy the music, and disconnect it. Do this every six months or so.

    RAID solves some problems, but none that a typical SqueezeCenter server has.



    --
    Pat Farrell
    http://www.pfarrell.com/


  5. #5
    The problem is exacerbated by the size of the music collection...630 Gb at present. I used to have it spread over several 500 Gb drives - then 1Tb drives became cheap enough..so I have one internal and one in a usb external as backup..but its a pain to copy new music to external on a regular basis. Copying to dual layer DVD's is not reasonable...thats how I arrived at raid 1 or 5 as being solutions to both issues - adequate storage and backup..and I still have another 100 or so CD's to rip to flac and tag.

  6. #6
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    I'm in agreement that RAID 1 or 5 is not the right answer. These technologies are intended to provide high availability of data. Relying on them for protection against data loss and as a substitute for backups is a mistake.

    I maintain two backups. The first is the weekly backup to an external drive that I pull out of the safe, plug into the computer, and then place back in the safe.

    But because I'm doing daily changes to tags, artwork, ratings, playlists, etc... I also want to mitigate the chance I'll lose a week's worth of work. So I have another backup routine that automatically syncs everything to a second internal drive on a nightly basis.

    To me this is a far better use of two drives than making a RAID 1 array.

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