Results 1 to 4 of 4
  1. #1


    Member Since
    May 10, 2007
    Posts
    502
    Specs:
    Mac pro quad 2.66 / G5 1.8
    Combine two or more hard disks into a single volume?
    I've searched for this, but I'm either getting no answers or a lot of vaguely hard disk related ones, so I'll ask here.

    I Have a mac pro with 2 x 160gb, and 2 x 250 gb hard disks. I also have a partition for windows. Running OSX 10.4, parallels and bootcamp. It's on a small home network, where I also have an old G5, with 2 x 80gb disks, running 10.3.

    I'm finding the number of volumes shown in finder a little overwhelming now - if I connect to the G5, I have 7 hard disks showing.

    So, is there a way to combine hard disks, or partitions on hard disks into single volumes?

    I'm thinking to leave the 160 gb system disk as it is, and make a partition or folder on that for data I need to back up.

    Then I want to combine 160+250+250 into a single volume. I don't need to back that up, most of it is images of my DVDs as I just use the Mac to watch films, and hide the original DVDs from my highly destructive daughter.

    I'd like to combine the 2 x 80gbs on the G5 too, if I can.

    Any hints?

  2. #2

    Kash's Avatar
    Member Since
    Dec 03, 2006
    Location
    Irvine, CA
    Posts
    9,385
    Specs:
    Black Macbook C2D 2GHz 3GB RAM 250GB HD iPhone 4 iPad 3G
    There are essentially two ways to combine discs. One is RAID and the second is JBOD. RAID requires all the drives to be the same size (ok fine, you can use different sized drives, but that's just stupid since you'll lose space) but with JBOD you can add all the drives and create one large volume.

    Unfortunately, I have no clue as to how to do this (at least, not on a Mac; if it were Windows I'd help you in a jiffy).

    June 2007
    July 2009

  3. #3


    Member Since
    May 11, 2007
    Posts
    4
    Sounds like you don't need fault talerance and you want a spanned volume:
    http://en.wikipedia.org/wiki/Spanned_volume

    I am not sure all RAID implementations require Concatenation JDOB or SPAN capabilities to economically have all drives be the same size (due to not being able to use the excess space) -- seems like a bad hardware implementation if you lose it for a concatenation function.

    However, I am interested to know if anyone has found a software spanning volume utility for Mac? Microsoft has had this feature built-in to Windows XP (and possibly previous versions).

  4. #4


    Member Since
    May 10, 2007
    Posts
    502
    Specs:
    Mac pro quad 2.66 / G5 1.8
    Quote Originally Posted by Jasper Smith View Post
    Sounds like you don't need fault talerance and you want a spanned volume:
    http://en.wikipedia.org/wiki/Spanned_volume

    I am not sure all RAID implementations require Concatenation JDOB or SPAN capabilities to economically have all drives be the same size (due to not being able to use the excess space) -- seems like a bad hardware implementation if you lose it for a concatenation function.

    However, I am interested to know if anyone has found a software spanning volume utility for Mac? Microsoft has had this feature built-in to Windows XP (and possibly previous versions).
    Yeah, it's definitely that rather than mirroring.

    Have been doing it woth Windows since NT4.

    I shall look around carefully, I don't think it's something I want to experiment with without checking it out first. Losing an 800gb partition would be a bit of a bummer . . .

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Do you name your hard disks?
    By Sawday in forum Schweb's Lounge
    Replies: 24
    Last Post: 07-26-2013, 12:06 AM
  2. How do i combine multiple pdf files into a single one
    By bonvoyage in forum OS X - Operating System
    Replies: 5
    Last Post: 09-24-2009, 03:16 AM
  3. Combine internal hard drive with firewire hard drive
    By simmons777 in forum OS X - Operating System
    Replies: 0
    Last Post: 08-15-2008, 05:15 PM
  4. Permissions on hard disks
    By jacen in forum OS X - Operating System
    Replies: 1
    Last Post: 07-02-2005, 11:18 PM
  5. Single user mode and Zip disks
    By rman in forum OS X - Operating System
    Replies: 2
    Last Post: 04-29-2003, 02:50 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •