On Mon, Sep 1, 2014 at 12:34 AM, LuKreme <[email protected]> wrote: > > On 30 Aug 2014, at 12:01 , Dinse, Gregg (NIH/NIEHS) [C] < > [email protected]> wrote: > > > Hi, > > > > I have a 2012 Mac Pro tower (with 4 drive bays), running MacOSX 10.9.4 > (the latest version of Mavericks). > > > > Can I use Apple's Disk Utility to create a RAID10 disk array? > > > > That is, could I put 4 equal-sized hard drives in the Mac Pro tower and > then use Disk Utility to create a RAID10 setup, which is a stripe of > mirrors? > > I don't think so. If I recall correctly, DU does either Raid0 or Raid1, > but not Raid10. However, since a RAID10 is just a RAID1 of a RAID0 out's > quite possible that you can first create the RAID0 and then create the RAID1 > > You will need 5 drives total (4 for the RAID and a boot drive). > > Erase the 4 drives, pair two of them into a raid0 (Pretty sure OS X calls > it a Mirror and doesn't use "RAID0"), then create the striped array. If it > lets you create the striped array, then you are good to go. > >
btw, RAID 10 is not usually raid 0 + raid 1 as suggested above but is (much) better arranged as a stripe across mirrored pairs, i.e. disk 1 + disk 2 => RAID1 mirror => Array A disk 3 + disk 4 => RAID1 mirror => Array B Array A + Array B => RAID 0 => Array C (RAID10) although on re-reading I think you did mean that and just typo-ed the raid level as you do talk about a mirror and then a strip.
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