Disk Utility is messy?

Discussion in 'OS X El Capitan (10.11)' started by iMcLovin, Sep 17, 2015.

  1. iMcLovin macrumors 68000


    Feb 11, 2009
    Im using the RC version of El capitan. While I like the new design of the Disk utility, its a lot more difficult to understand how the disks are set up. I have a MyBook Duo 8gb set up for raid 2. In Yosemite, Disk utility displayed that as 1Disk with 2 subdisks, very easy to understand. While in El Capitan I see one greyed out disk with a subdisk and 3 other disks, a complete mess and I have no clue what it means by it.

    Is this a bug or did Disk utility just become a very confusing?
    See image:
  2. patternjake macrumors member


    Sep 17, 2015
    The design is OK, I just don't like how they removed the ability to repair disk permissions. People can negate it's purpose but in my experience, it really did help with a Mac that was acting up (iMac, Tiger). I know it's because of Rootless but they SHOULD have at least let the user run it manually too, not just up to chance of the system performing updates, which could be months at a time.
  3. Shirasaki macrumors 604


    May 16, 2015
    Their logic is: system files are protected, and repair permission is useless.
    They must have ignored that their system update duration is not so short.
    However, if there is a local protected correct permission table, it should be possible to let user run this command from time to time.
  4. leman macrumors G3

    Oct 14, 2008
    It is possible that it does not play well with RAID drives yet. What does discutil say? BTW, why are you using RAID 2? Its an extremely rare RAID setup in the first place.

    You do realise that with rootless user can't change system files in any way, which also means not being able to change permissions? What purpose would it serve to have a function that you can't use? It does not matter how often the system perform the permission check, as the permissions can't be changed by anybody but the system updater anyway.
  5. iMcLovin thread starter macrumors 68000


    Feb 11, 2009
    I didnt think that was a rare Raid setup?? I have 2 disks in Raid in a MyBook Duo, which mirror one another. Because I use the MyBook as backup for all my archived work. I work with image and video and it takes up a lot of space and I like the double security.

    What do you mean what Disk Utility say? It says its in raid, so I dont think there is anything wrong. But currently its very har to understand which one I should use to operate the Drive if I need to reformat or do anything else. But as long as it works theres nothing to worry about except I find it strange that the simplified the UI but still makes the overview of a raid drive completely messy.
  6. jbarley macrumors 68040


    Jul 1, 2006
    Vancouver Island
    Possibly why some see it as odd.
    From Wikipedia...
    "RAID 2 consists of bit-level striping with dedicated Hamming-code parity. All disk spindle rotation is synchronized and data is striped such that each sequential bit is on a different drive. Hamming-code parity is calculated across corresponding bits and stored on at least one parity drive.[11] This level is of historical significance only; although it was used on some early machines (for example, the Thinking Machines CM-2),[18] as of 2014 it is not used by any of the commercially available systems."
  7. iMcLovin thread starter macrumors 68000


    Feb 11, 2009
    Well without more than 2 disks it's impossible to do a more advanced raid mirroring system to safer store your data. If I had a 3 disk storage I could do raid 3 but for my use that's not needed.
  8. dotnet macrumors 65816


    Apr 10, 2015
    Sydney, Australia
    RAID-2 is bit-level striping and requires specialised hardware support. If you're mirroring the disks you're using RAID-1.
  9. leman macrumors G3

    Oct 14, 2008
    What you are talking about is not RAID 2, but RAID 1.

    I was not talking about Disk Utility. I was talking about the diskutil command line tool. The Disk Utility is essentially an UI frontend that exposes a fraction of diskutil's functions. Try opening the terminal and typing diskutil list
  10. chrfr macrumors 604

    Jul 11, 2009
    RAID terminology is not based on the number of disks in the configuration. As the other posts mention, you're using RAID 1, which means that you have 2 disks which mirror each other. The only RAID versions Disk Utility can create are RAID 0 (which is not actually a RAID at all) and RAID 1, regardless of how many disks you have available. Here's a link with more information about RAID terms: http://www.webopedia.com/TERM/R/RAID.html

Share This Page