flash hard drive help

Discussion in 'Mac Accessories' started by ooprec, Apr 15, 2010.

  1. ooprec macrumors newbie

    Joined:
    Apr 15, 2010
    #1
    Hey,

    I had a great idea for a flash hard drive using a 8 port USB hub and 32GB pens but was wondering if anyone knew/heard of a mod so that it shows up as one device instead of 8

    cheers
     
  2. spinnerlys Guest

    spinnerlys

    Joined:
    Sep 7, 2008
    Location:
    forlod bygningen
    #2
    So you want to use eight 32GB flash memory sticks via a USB hub in a "RAID" configuration?

    As those flash drives give you only 10 to 15MB/s read and write speeds, and USB limits the whole shebang to 30 to 35MB/s, the whole point is what exactly?

    SSDs use other flash memory modules as flash memory sticks. Thus 64GB of SSD is more expensive than two 32GB sticks.
     
  3. ooprec thread starter macrumors newbie

    Joined:
    Apr 15, 2010
    #3
    Well ......

    The whole thing started by finding a nice adapter to use a CF chip to replace the drive in my gen 5 iPod that is freezing and was dismayed that they chose CF instead of SD chips which are much less expensive which led to wouldn't it be nice to get rid of all these drives on my desk of which 1/2 are for redundancy and how much more reliable yada yada.

    Doesn't seem to be that much in the way of flash hard drives and seem kinda expensive.

    Too bad, thought might have had a 'good' idea lol.

    Wonder why more hasn't been done on this type of storage devices?

    cheers
     
  4. nanofrog macrumors G4

    Joined:
    May 6, 2008
    #4
    Flash RAM is rather slow, and it's write cycles are also very limited (1E4 for MLC = 10,000 is all it's capable on it's own).

    SSD's incorporate multi-channel controllers and add cache to address the performance, and write techniques such as wear leveling in order to address the write cycle limitations (then toss out the worst 10% of the cells from the statistics used to generate the specification data, which is why you don't want to fill them up).
     

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