2 TB HDD: optimal size of partitions

Discussion in 'Mac Pro' started by /\/\, Mar 7, 2008.

  1. /\/\ macrumors regular

    Sep 29, 2007
    I am a "switcher" and I have my new Mac Pro for 3 days. Awesome!!!! :D

    I ordered 4x 1TB Hitachi and now I want to re-install Leopard.

    I will install RAID 01, so I will have 2 TB of space.

    What is the optimal space for system -, user files-, swapfile / pagefile-, time machine - partition.

    You see I have no clue, because I am a switcher.
  2. jchung macrumors newbie

    Mar 6, 2008
    Two RAID 1 mirrors

    Personally, I'd just create two RAID 1 mirrors, instead of a single RAID 10.

    First mirror is your system. One large partition for the full 1TB.

    Second mirror is your Time Machine disk.

    Now... If you are using the software raid that comes with Mac OS X, keep in mind that you can't install system firmware updates when booting from software RAID partitions. If you are using the PCIe RAID card, you're probably ok.
  3. /\/\ thread starter macrumors regular

    Sep 29, 2007
    But RAID 01 is more secure than RAID 1, isn't it?

    oh I forgot: I use the Mac Pro RAID Card
  4. jchung macrumors newbie

    Mar 6, 2008
    RAID 01/10 is not more fault tolerant than RAID 1. They have approximately the same fault tolerance. But, RAID 01/10 should have better performance than RAID 1.
  5. kittiyut macrumors regular


    Oct 28, 2007
    I agree, if you are going to partition your RAID 0+1, then you're probably better off just creating two sets of RAID 1. That's what I did with my Windows box. One for XP the other for Vista.

    OR, using all 4 to create RAID 5, you'll gain more space that way.
    BTW, you'll get only about 931 GB per drive not the full "1024GB - the true definition of 1TB"

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