Two macs using one external HD?

Discussion in 'Mac Basics and Help' started by Ad Pro, Nov 16, 2007.

  1. Ad Pro macrumors member

    Joined:
    Jul 4, 2007
    Location:
    UK
    #1
    Hi, I have an iMac and a MacBook Pro. I want to use an external hard drive as a file store, for all my photos and old work. Both the iMac and MacBook Pro will need to access the drive.

    Is there any problem with two Macs using one drive at the same time?

    Also I will have a backup of the drive on another external, If I schedule a backup on my iMac (not sure what App. I will use, may set up a RAID 1) will the files still be backed up when I write a file to the drive from my MacBook Pro?
     
  2. Super Macho Man macrumors 6502a

    Super Macho Man

    Joined:
    Jul 24, 2006
    Location:
    Hollywood, CA
    #2
    You can't connect one drive to two computers simultaneously via USB/Firewire. However, you can connect the drive to one computer, and then enable personal file sharing on that computer which will allow you to connect to the drive from the other computer over the network.
    I'm not 100% sure what you mean. If the backup happens *after* you write to the drive from your MBP, then whatever your MBP has written will get backed up. If the backup happens *before* you write to the drive from your MBP, then that write will not get backed up.

    As an aside, RAID 1 is a very bad idea as a backup solution. If any data on your primary drive gets borked (hardware/software corruption, accidental deletion/overwrite, etc.), that bork-up will get mirrored to the secondary drive automatically. Better to do periodic backups.
     
  3. Ad Pro thread starter macrumors member

    Joined:
    Jul 4, 2007
    Location:
    UK
    #3
    Thanks, that answers my question perfectly. Don't know why I didn't think of doing it that way. I presume the network can just comprise of a firewire cable from one mac to the other - will this work?
     
  4. Super Macho Man macrumors 6502a

    Super Macho Man

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    Jul 24, 2006
    Location:
    Hollywood, CA
    #4
    Yup!
     
  5. Ad Pro thread starter macrumors member

    Joined:
    Jul 4, 2007
    Location:
    UK
    #5
    Ok, thats great!

    Here is what I have in mind (the MBP time machine backup and file storage are on sepparate partitions on the same drive), any obvious problems with this?:

    View attachment 91495
     
  6. Consultant macrumors G5

    Consultant

    Joined:
    Jun 27, 2007
    #6
    Looks good. I would get a Gigabit ethernet switch (sometimes $20 after rebate for 5 port), and run cat5e or cat6, cat6e cable for gigabit ethernet speed.

    If you can afford it, get drives with firewire 800.
     
  7. Rizvi1 macrumors 6502a

    Joined:
    Mar 29, 2006
    Location:
    Laurel, MD (Baltimore, MD / Washington, DC area)
    #7
    hey, cool pic.. I should make something like this to describe my home network.
     
  8. Ad Pro thread starter macrumors member

    Joined:
    Jul 4, 2007
    Location:
    UK
    #8
    Could you explain this in more detail please, I presume you are talking about the network setup between the two macs, this sounds great.... please tell me more and what are the advantages - how do you go about setting it up etc?

    And yes, all the drives I am getting have FW800.
     

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