Network Attached Storage for Video? Anybody?

Discussion in 'Professional Video Production' started by Max Krippler, Mar 10, 2008.

  1. Max Krippler

    Max Krippler Guest

    Hi,
    I am trying to set up a new LaCie 4-terrabyte network attached
    storage stack for recording DV. I figured that with the gigabit
    ethernet I shouldn't have any problems-- and yet, problems I got!

    I'm recording DV video from a Camcorder through the firewire 400 port
    of an intel Macintosh and trying to use the LaCie NAT for storage. It
    behaves "haltingly" showing lots of dropped frames. I've tried all of
    the different RAID configs that seem applicable (0,1,5) and all of
    them have this behavior. The Macintosh I'm controlling it with also
    has a gigabit ethernet connection, so the throughput shouldn't be a
    problem. When I record directly to the Mac's internal harddrive there
    are no problems.

    I went with the network attached storage because ultimately I would
    like to use it as a common storage device for two separate Mac's, but
    if just one is giving me trouble... (But all of the specs are well
    above what I need!)

    Any thoughts before I venture into the hell that is the LaCie call
    center?

    Thanks,
    --Maxx
     
    Max Krippler, Mar 10, 2008
    #1
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  2. "Max Krippler" wrote ...
    You mentioned nothing about your network. I would strongly
    suspect that is the most likely cause of your symptoms.

    Unless you were running an isolated gigabyte network
    between your computer and the NAS, I would *NOT*
    expect trouble-free, real-time video transmission via
    ordinary TCP/IP.

    It has always been my assumption that real-time video
    activities such as capture from a tape-based source
    must be done to a *local drive* and THEN copied to
    the NAS (etc.).
     
    Richard Crowley, Mar 10, 2008
    #2
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  3. Max Krippler

    nappy Guest

    agreed. Your NAS should be for storage and playback and should not be
    depended upon for capture. Although all of the speeds indicate it _should_
    be possible.. it is still a packet based network transmission which is not
    actually a real time system.
     
    nappy, Mar 10, 2008
    #3
  4. Max Krippler

    Max Krippler Guest


    It is a test setup, only three items on the 10/1000mhz hub:
    The LACie NAT
    The PC laptop I needed to configure the LaCie,
    and the Mac Mini that I have the DV source plugged into.

    I've tried it with the PC unplugged from the network and nothing
    changes. It is apparently sluggishly slow. Hmmm...
     
    Max Krippler, Mar 11, 2008
    #4
  5. "Max Krippler" wrote ...
    As nappy observed. TCP/IP networking is packet-
    based and *NOT* a suitable link for real-time data
    like capturing video. Doesn't sound like anything is
    broken. It is working exactly as well as it always has.
     
    Richard Crowley, Mar 11, 2008
    #5
  6. Max Krippler

    nappy Guest

    assuming you mean 10/100/1000 'switch' here.. right?

    mac mini. hmm.. probably not gonna fly the way you want it to. Capture
    locally and use your NAS as just 'S' ..
     
    nappy, Mar 11, 2008
    #6
  7. Max Krippler

    MG Guest

    I don't have as much experience setting up these systems as a lot of these
    other guys do, but none of the ones I have done use ethernet connections for
    anything other than storage. These have all been "by-the-book" systems, and
    they haven't had such issues. You didn't mention what NLE software you're
    using, but I wouldn't be surprised if somewhere in the documentation there's
    advice against doing what you are trying to do.

    mg
     
    MG, Mar 11, 2008
    #7
  8. Max Krippler

    Max Krippler Guest

    It's not good news, but thank you anyway. I hope you are wrong.
    If any of the information I get from LaCie is helpful (yeah, right),
    I'll post it here. Bye.
     
    Max Krippler, Mar 11, 2008
    #8
  9. Note also that the LaCie NAT drives have a file size limit
    issue. Exactly what this limit is I've been unable to
    tie down, it should be 2GB but I've found it to be
    around 4GB. Anyway they are unsuitable for DV-AVI files
    of large size, as well as being painfully slow.

    Colin
     
    Colin McCormick, Mar 23, 2008
    #9
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