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List:       centos
Subject:    Re: [CentOS] Can anyone talk infrastructure with me?
From:       Lamar Owen <lowen () pari ! edu>
Date:       2012-01-28 17:27:02
Message-ID: 201201281227.02502.lowen () pari ! edu
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On Thursday, January 26, 2012 06:43:55 PM Gordon Messmer wrote:
> 1.5Mbps is not faster than 40Mbps.  There's nothing hidden in the way 
> they advertise speeds.

Speed != bandwidth.

That '40Mb/s' connection is surely massively oversubscribed, whereas the 1.5Mb/s DS1 \
won't be (the tariff here states clearly that a DS1 data connection cannot be \
oversubscribed).

This infrastructure thread is pretty amusing.... I especially enjoyed the 30,000 \
square feet number Karanbir quoted, since that's exactly how much aggregate raised \
floor space I have on-campus.....and it reminded me of the day I was asked about \
providing a 1PB array for a user.... who had no clue how much such a thing would \
cost, how much room it would occupy, how much power it would use, and how much it \
would weigh.  He chose instead to use rotated LTO-3 tapes in multiple changers, only \
keeping the 'interesting' data he generated.  As it happened, his project in its \
lifetime did generate close to a PB of data at 2-4TB per day, IIRC (but it has been a \
few years). _______________________________________________
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