Daisychaining question

Discussion in 'Mac Accessories' started by jhamerphoto, Aug 17, 2008.

  1. jhamerphoto macrumors regular

    Joined:
    Oct 26, 2007
    #1
    I know tons of people ask about daisychaining, and I know what to do, but before I buy a small portable hard drive, I was wondering if I could use both FW400 and 800 at the same time in one daisychain. It would look as follows:

    the small portable hard drive plugged into a G-tech Quad-interface 320gb drive via FW400, which will be plugged into a LaCie 1tb drive, which will then be connected to my MBP via FW800.

    Will this work and all drives will show up?

    thanks!
     
  2. Xander562 macrumors 68000

    Xander562

    Joined:
    Apr 2, 2006
    #2
    So you're going: MBP <-FW800-> LaCie <-FW400-> other HDD. I have the 500GB iteration of the LaCie D2 Quadra and I just tested this out in the configuration above and it does work. Both drives show up on the desktop. I cannot give you specs on transfer speeds though.
     
  3. jhamerphoto thread starter macrumors regular

    Joined:
    Oct 26, 2007
    #3
    There's another drive in there, but it's essentially the same...

    Macbook Pro <-FW800-> LaCie 1Tb <-FW800-> G-Tech 320gb <-FW400-> portable drive

    As long as they show up, I assume the portable would maintain FW400 speeds.
    Thanks again!
     
  4. Xander562 macrumors 68000

    Xander562

    Joined:
    Apr 2, 2006
    #4
    Ahh well I can't test that setup as I only have two externals. :eek: Sorry. Just out of curiosity, why not just plug that last FW400 directly into the MBP?
     
  5. sickmacdoc macrumors 68020

    sickmacdoc

    Joined:
    Jun 14, 2008
    Location:
    New Hampshire
    #5
    While I'll be darned if I can find the source to quote, I read not that long ago that if there is ANY FW400 involved (at any position) in a FW800 daisy chain, it will cause the entire chain to step down to FW400 speed.

    I came across that when doing some research that wound up with me adding a PCI card with two additional FW 800 ports for the menagerie of FW drives I had up until recently in my backup set.

    If I can find one of those sources I will post it back here.
     
  6. jhamerphoto thread starter macrumors regular

    Joined:
    Oct 26, 2007
    #6
    Xander:

    I would, but as a photographer I use my firewire 400 port for my CF reader for faster download speeds. I also use FCP at times, so downloading DV tapes via FW400 is also important.
    If you're wondering why I haven't tested this with my FW400 reader yet, it's because in my current MBP, the logic board is failing and the FW800 port doesn't work and the 400 port sort-of works haha.
    Thanks for your help though!

    sickmacdoc:

    That would suck, but I guess it's a trade-off. At least as just a small-capacity portable drive, I wouldn't have it plugged into my setup all the time.
     
  7. sickmacdoc macrumors 68020

    sickmacdoc

    Joined:
    Jun 14, 2008
    Location:
    New Hampshire
    #7
    Yep, that is true- at least the time when running at FW400 would be minimized that way.
     
  8. jhamerphoto thread starter macrumors regular

    Joined:
    Oct 26, 2007
    #8
    just thought also...

    it shouldn't matter if the drives are different formats right?
    my 2 desktop drives are mac formatted, but I intend on keeping the portable one FAT32.

    this is mainly just to store pictures on for travelling and using computers other than my own.
     
  9. sickmacdoc macrumors 68020

    sickmacdoc

    Joined:
    Jun 14, 2008
    Location:
    New Hampshire
    #9
    No, the format of the drives should not have any affect on the transer rates- you are correct. The transfer rates are determined by the interface electronics in the drive and in the Mac.
     

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