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Old Apr 27, 2013, 06:06 AM   #1
opinio
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Join Date: Mar 2013
RAID-0 on OS X Disk Utility - Question

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.

Thanks.
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