External HD's - Does such a hard drive exist?

Discussion in 'OT Technology' started by SLED, Feb 8, 2007.

  1. SLED

    SLED build an idiot proof device and someone else will

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    That is Firewire 800, decent size ~100gb, and is powered by the firewire port?

    I need some travel storage for my mac, and would like it to be fast, as I will be putting virtual disks on there, working with photoshop, etc.

    I checked newegg, and couldn't find anything.
     
    Last edited: Feb 8, 2007
  2. wfp

    wfp New Member

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  3. SLED

    SLED build an idiot proof device and someone else will

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  4. dorkultra

    dorkultra OT's resident crohns dude OT Supporter

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    doesn't it have to be a 2.5" drive to not require external power? i found a couple of firewire powered 2.5" drives, but none are firewire800
     
  5. SLED

    SLED build an idiot proof device and someone else will

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    Yea, i don't care if it's a 2.5", that's fine, but now you see my problem.
     
  6. wfp

    wfp New Member

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  7. deusexaethera

    deusexaethera OT Supporter

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    1394b is the smaller of the two FireWire-400 plugs -- 1394a is the larger version. But yes, you're right about there being no point in making a FireWire-800 hard drive, because unless you're going to daisy-chain a bunch of drives together, you'll never come close to 800Mbits/sec.
     
  8. SLED

    SLED build an idiot proof device and someone else will

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    You'll never overcome that speed right now, however, FW400 could bottleneck a drive.

    EDIT: when daisy chained
     
  9. SLED

    SLED build an idiot proof device and someone else will

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  10. SLED

    SLED build an idiot proof device and someone else will

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  11. wfp

    wfp New Member

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    Hmm, this thread has got me thinking about getting a firewire powered external hd now. All in the name of one less cable on the desk. :big grin:
     
  12. SLED

    SLED build an idiot proof device and someone else will

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    Plus on the road it would be so nice (which is why I'm getting one.)

    No external power needed, and fast as shit.
     
  13. mdaniel

    mdaniel S is for Shiksa

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    I don't think you even need to daisy chain them. FW400 is 50MB/sec max theoretical transfer rate. I'm seeing 7200 rpm SATA drives sustaining close to 60MB/sec today. Assuming the FW400 could do 50MB/sec, that's a 600MB/min difference. Spend 10 minutes transferring files that that's a 6GB difference. It adds up. Plus, no drive would ever burst above that 50MB/sec. I'd like to see what the real world xfer rate is on fast IDE/SATA drive connected through a FW400 port. I wonder how close to 50MB/sec it actually gets.
     
  14. deusexaethera

    deusexaethera OT Supporter

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    This all assumes that you're using the drive at 100% capacity for a long enough continuous period of time to even be able to notice the bottleneck. If there's downtime greater than a few milliseconds between disk accesses, you won't notice the 50MB/s bottleneck at all. I mean, yeah, when you first load all of your crap onto the disk it might bottleneck, but once you settle down and actually start using the disk on a daily basis, you're not going to max it out, not unless you're doing realtime A/V editing.
     

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