Optimal SAS Config.?

Discussion in 'Mac Pro' started by Santabean2000, Mar 1, 2008.

  1. Santabean2000 macrumors 68000

    Santabean2000

    Joined:
    Nov 20, 2007
    #1
    What is the optimal raid config. with four 300GB SAS drives? - Speed being the over-riding factor here.

    Also, how to organise the op syst/apps/files - again speed being the essence.

    I'm thinking: bays 1/2 holds apps in Raid 0, bays 3/4 for files Raid 0.
    IS this OK?

    But my concern is running out of space too quickly; would it take too long to transfer files via Time Cap in an effort to keep hard drive space on the MP?

    Any thoughts appreciated.
     
  2. MacFanBoyIIe macrumors 6502

    Joined:
    Feb 22, 2008
    #2
    If all you care about is speed, I agree, RAID0s.
    But I would go:

    Bay 1: OS/Apps
    Bay 2-4: User Folders/Data (RAID0)

    or,

    Bay 1: OS/Apps/User Folders
    Bay 2-4: Data/Scratch (RAID0)

    With RAID0, you want LOTS of backups. One disk dying will result in total data loss.
     
  3. scottydawg macrumors 6502

    scottydawg

    Joined:
    Jan 22, 2008
    Location:
    Sacramento, CA
    #3
    How about you don't RAID the first drive and keep your operating sys and apps on it, don't RAID drive 2 just use it for scratch, RAID 0 for drives 3 and 4 for user accounts and files?
     
  4. contoursvt macrumors 6502a

    Joined:
    Jul 22, 2005
    #4
    This is how I have my SCSI stuff setup on my Vista box so maybe you can try something similar.

    drive1 - OS and applications (no games or non critical items on this drive)
    drive2 - swap (which is set at a fixed size), system restore images
    drive3 - work space / user data

    I dont have a drive four which would be super fast...but my games and useless crap is stored on a couple SATA drives where speed is not important.
     
  5. Santabean2000 thread starter macrumors 68000

    Santabean2000

    Joined:
    Nov 20, 2007
    #5
    So no need to double up on the OS/Apps disk.

    What about having:
    Bay 1 - 300SAS, OS/Apps
    Bay 2+3 - 300SAS Raid 0
    Bay 4 - 1TB 7200rpm BackUps, (TimeMachine?), archive non-current project files

    Thanks for the replies so far.
     
  6. Cromulent macrumors 603

    Cromulent

    Joined:
    Oct 2, 2006
    Location:
    The Land of Hope and Glory
    #6
    You can't mix SAS and SATA drives in the same machine as far as I know.
     
  7. scottydawg macrumors 6502

    scottydawg

    Joined:
    Jan 22, 2008
    Location:
    Sacramento, CA
    #7
    +1
     

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