RAID-0 on OS X Disk Utility - Question

Discussion in 'OS X Mountain Lion (10.8)' started by opinio, Apr 27, 2013.

  1. opinio macrumors 65816

    Mar 23, 2013
    I have never used the software RAID option in Disk Utility in OSX. I have usually used hard ware RAID (NewerTech GMAX e.g.), but I have bought two Seagate 4TB drives and have set them up by making a RAID-0 8TB through Disk Utility. It seems to work ok and give me around 260 MB/s read/write.

    I am wondering about a few things that I hope someone can answer.

    1. Can I add a Disk (third one) to the RAID-0 array without having to re-build? If so I am guessing it will have to be an identical Seagate 4TB?

    2. What is the RAID utility in 'Utilities'? I use Disk Utility to build the RAID. When I try to open this App it says 'RAID Utility is not supported on this computer'. I have a Mac mini Late 2012 i7 2.6Ghz.

    3. If I add a third identical 4TB drive, does OS X have RAID 5? Or if I add a third drive and rebuild I am guessing I will have 12TB but is the speed even faster as well?

    4. Any other suggestions for my new 8TB setup?

    Sorry for basic questions but while I have years of experience with Mac/OSX I have never had much to do with software RAIDs.


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