Connect external drive to 2 ports = double the speed?

Discussion in 'Mac Basics and Help' started by mgpg89, Dec 12, 2008.

  1. mgpg89 macrumors 6502a

    mgpg89

    Joined:
    Aug 31, 2008
    Location:
    Belgium
    #1
    I have an external FW800 drive ... If I connect it to my Mac using 2 FW800 cables, will I have double the transfer speed?

    The drive's a Iomega Ultramax (1TB)
     
  2. notjustjay macrumors 603

    notjustjay

    Joined:
    Sep 19, 2003
    Location:
    Canada, eh?
    #2
    No.

    If you want to double the effective speed of a hard drive, you need to look at RAID 0 (striping).
     
  3. Tastannin macrumors 6502

    Tastannin

    Joined:
    Sep 19, 2003
    Location:
    UT
    #3
    No don't do it. It could even damage your system by creating a "loop".

    If you want a faster drive, you need an enclosure like this one at OWC and configure it for striping (RAID 0) per notjustjay's comment above.

    Honestly, if you need RAID striping, you need to use eSATA. Firewire 800 has a limit of about 100MB/s, and SATA can go up to 150 or 300 MB/s. The issue is if your drives will be fast enough to saturate those interfaces. Take those into account. Do a bit more research.

    Short answer: You won't be able to double your Iomega drive's speed unless you get a new drive that does RAID striping over SATA.
     
  4. old-wiz macrumors G3

    Joined:
    Mar 26, 2008
    Location:
    West Suburban Boston Ma
    #4
    The OS doesn't have the capability for dual access to a normal drive. It would create frightful problems.
     

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