[Tig] Is there anybody out there

Bob Friesenhahn bfriesen at simple.dallas.tx.us
Thu Aug 3 17:03:09 PDT 2006


On Thu, 3 Aug 2006 TSassoon at aol.com wrote:
>> 130TB is a huge amount of data to collect on site
>
> Sounds big, but it's also just 300 commodity hard drives from Office Depot
> for $200 each, and/or the same number of LTO-3 tapes at $75 each. $25-30K for a
> full dataset doesn't seem too onerous to me.

The cheapy hard drives you mention will severely *choke* when fed raw 
RGB data in real time (200+ GB/second).  You will be lucky to get more 
than 40-60GB/second into them.  And of course, there is a very good 
chance that data will be lost when the cheapy drive fails.  A striped 
RAID array is necessary to handle the data rates.  This RAID array 
needs to be in a rugged enclosure so that it can be hauled around, and 
may even need to survive on a portable generator or battery power. 
That is why S.two's recorders look like they do 
(http://www.stwo-corp.com/).

I am sure that you are just pulling my leg.

Bob
======================================
Bob Friesenhahn
bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/




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