hard drive setup for my mac pro

Discussion in 'Mac Pro' started by mc77, Jul 12, 2009.

  1. mc77 macrumors newbie

    Joined:
    Jan 7, 2009
    #1
    Hello All,

    To begin with, I know that this question has been asked many times before and I have searched some previous threads on it, but this will be my first time buying hard drives and I guess I'm just looking for a bit of feedback before I make the purchases. Currently my mac pro just has the 1tb drive that I ordered with it initially. Due to my growing itunes library and just the general need to back up files, I want to use the other hard drive bays in the mac pro. Here is what I am thinking of ordering from OWC: Buy 2 x 1tb western digital caviar green power drives and RAID them for the itunes library - not sure if it is RAID 0 or 1 for this? and then get a 2tb western digital green power drive for backup of of the itunes library and of course my work on the initial 1tb drive. Does this sound like a reasonable setup or should I be thinking of something else? Should I also be thinking of an external backup as well? Any input would be much appreciated especially on the RAID situation as I have never done this before - cheers
     
  2. Tesselator macrumors 601

    Tesselator

    Joined:
    Jan 9, 2008
    Location:
    Japan
    #2
    oO

    How big is your iTunes library?


    Anyway, it would be more advantageous to make a RAID0 out of all three of the 1TB drives and then use the 2TB for backup as you were thinking.

    The procedure for doing this would be to clone your current 1TB boot drive to the 2TB drive and make sure it works.
    Then create the RAID0 out of the two new drives and the 1TB you currently have. (pretty easy to do!)
    Then clone the 2TB boot you just made onto the 3-Drive RAID0 and make sure it works.
    Then leave the 2TB clones as it is and set up your back-up program to update it on a scheduled basis.

    This will provide the most performance, add pep to your system, solve your storage problems, and provide you with a backup solution all at the same time. :)
     
  3. mc77 thread starter macrumors newbie

    Joined:
    Jan 7, 2009
    #3
    Thanks very much for your suggestions - I will look into following your advice. Cheers
     
  4. Cynicalone macrumors 68040

    Cynicalone

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    Jul 9, 2008
    Location:
    Okie land
    #4
    Tesselator's plan is a good one.

    I know all about needing space for iTunes I have 4 1TB Greens just for iTunes.
     
  5. mc77 thread starter macrumors newbie

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    Jan 7, 2009
    #5
    Thanks for your reply cynicalone - was just wondering if you also have some sort of external backup and if so what you use?
     
  6. nanofrog macrumors G4

    Joined:
    May 6, 2008
    #6
    There might be a small achilles heel though. What's the 1TB disk in the machine now (Green, Black,??? ie 7200rpm or slower)? :confused:

    It might mean moving to a different model would improve throughputs (better drive matching spec wise) a bit. ;)
     
  7. Cynicalone macrumors 68040

    Cynicalone

    Joined:
    Jul 9, 2008
    Location:
    Okie land
    #7
    My internal drives are...
    Bay 1 & 2 RAID 1 for the OS, Apps, and work projects
    Bay 3 for non critical work files
    Bay 4 for old projects

    The RAID 1 array is backed up to a Time Capsule hourly. Then each week I copy all 4 HDD's over to 4 external drives. Yes I'm a bit paranoid about my data. :)

    My iTunes library is backed up nightly with Carbon Clone Copy to a string of WD external drives. I like Carbon Clone Copy since it only copies what has changed and makes sure the backup is a duplicate of the source, and it is free which is always a plus. :)
     
  8. dimme macrumors 65816

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    Feb 14, 2007
    Location:
    SF, CA
    #8
    Are the green drives much slower?
     
  9. nanofrog macrumors G4

    Joined:
    May 6, 2008
    #9
    Yes they are, as lowering the power consumption does lower performance. Not terribly so, but it may matter for a primary drive or array.

    Blacks are faster, as are the RE3's (developed simultaneously, and are of very similar performance).

    Green (WD10EADS) = ~75MB/s
    Black (WD101FALS) = ~91MB/s
    RE3 (WD1002FBYS) = ~89MB/s

    Please note these are all 1TB drives, and are the average reads from independent testing, not manufacturer claims or estimates. :)
     
  10. Tesselator macrumors 601

    Tesselator

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    Jan 9, 2008
    Location:
    Japan
    #10
    Yeah, I thought of that but figured he would probably already know about that.

    :D
     
  11. mc77 thread starter macrumors newbie

    Joined:
    Jan 7, 2009
    #11
    Thanks again for everyone's input/suggestions. I just have one other question: looking at Tesselator's suggestion, would I be better off just getting 3 more 1tb drives and RAID them with the one that I currently have and then come up with an external backup solution? Is this possible and more effective or no? Thanks again for all your help!
     
  12. Tesselator macrumors 601

    Tesselator

    Joined:
    Jan 9, 2008
    Location:
    Japan
    #12
    It's certainly possible. And the RAID is "guaranteed" to have a more predictable speed (either faster or slower). But I guess the smallest backup you can get away with is 1.5TB. The 2TB sounds juuuust right.

    If you do this new way you could just do that till the BU no longer fits and then add it to the RAID0 for a 4-Drive RAID and get a 2TB BU drive - which by then will be cheaper too. :)
     

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