For my personal work, all my local media drives are now USB 3.0 and
they kick butt.
On Sun, Apr 1, 2012 at 8:34 PM, Robert Lawson <avidrhl@gmail.com> wrote:
> Often, those small bus powered drives are only 5400RPMs. Also, I have been
> told that USB is a poor interface for large file stream/copy operations.
> The operating system will disrupt a USB-based process more readily than,
> say, a firewire-based one. This is anecdotal info and my terminology is
> probably wrong but my experience seems to confirm this (as well as matching
> up with what you're seeing).
>
> -Rob Lawson
> CBS News.
>
>
> On Sunday, April 1, 2012, johnrobmoore <bigfish@pacbell.net> wrote:
>>
>>
>> Upon further investigation I made a QT to the internal drive and the
> activity monitor showed data write speeds at around 37-40 MB/sec and the
> file was created much faster. Sure that's a no brainer now that I look at
> it but once the 60 gig file was complete it then takes almost an hour just
> to transfer to the LaCie Rugged Mini so there is a serious performance hit
> when exporting directly to the mini so it would seem. I don't know why we
> aren't just sending raw drives as I'm sure those are acceptable to the
> network folks. They choose the mini's because they don't require a power
> supply but no one thought about all the time lost to slow transfer times.
> Oh well they will make pretty rugged orange coasters in the end. ;-(
>>
>> --- In Avid-L2@yahoogroups.com, John Moore <bigfish@...> wrote:
>>>
>>> I'm taking a Avid QT ref SD 1:1 mxf file with 4 tracks of audio and
> using QT Pro to export a self contained QT directly to a LaCie Rugged
> Mini. The Mini is USB buss powered with a USB to internal connection cable
> with two mini and micro usb connectors mounted together side by side. In
> activity monitor it shows Data written/sec bouncing between 14.5 to 16.38
> MB. I never really look at these activity monitor parameters so I don't
> have a feel for what they should or could be. Could anyone tell me if I
> would be better off creating the QT self contained movie to the internal
> drive and then copying the file to the Rugged Mini or is the throughput of
> the USB connected LaCie Rugged Mini not a factor in the time QT Pro takes
> to export the file. In other words does exporting directly to the LaCie
> mini slow down QT Pro's processing of the file because it's having to wait
> for the LaCie to write the data before moving on to more processing.
>>>
>>> John Moore
>>>
>>> Barking Trout Productions
>>>
>>> Studio City, CA
>>>
>>> bigfish@...
>>>
>>> [Non-text portions of this message have been removed]
>>>
>>
>>
>
> --
> ---
> Rob Lawson
> System Administrator, ACSR ISIS, Windows & Interplay
> CBS News
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Search the official Complete Avid-L archives at: http://archives.bengrosser.com/avid/
> Yahoo! Groups Links
>
>
>
No comments:
Post a Comment