PreguntasLinux

me encontré este artículo (http://www.businessintelligencelowdown.c...gest_.html) que esta muy interesante, se los dejo:

[10] Library of Congress
* 130 million items (books, photographs, maps, etc)
* 29 million books
* 10,000 new items added each day
* 530 miles of shelves
* 5 million digital documents
* 20 terabytes of text data

[9] Central Intelligence Agency
* 100 FOIA items added each month
* Comprehensive statistics on more than 250 countries and entities
* Unknown number of classified information

[8] Amazon
* 59 million active customers
* More than 42 terabytes of data

[7] YouTube
* 100 million videos watched per day
* 65,000 videos added each day
* 60% of all videos watched online
* At least 45 terabytes of videos

[6] ChoicePoint
* 250 terabytes of personal data
* Information on 250 million people

[5] Sprint
* 2.85 trillion database rows.
* 365 million call detail records processed per day
* At peak, 70,000 call detail record insertions per second

[4] Google
* 91 million searches per day
* accounts for 50% of all internet searches
* Virtual profiles of countless number of users

[3] AT&T
* 323 terabytes of information
* 1.9 trillion phone call records

[2] National Energy Research Scientific Computing Center
* 2.8 petabytes of data
* Operated by 2,000 computational scientists

[1] World Data Centre for Climate
* 220 terabytes of web data
* 6 petabytes of additional data

Curiosidad,.. y tecnológicamnte hablando?

queres decir que tecnología usan?

1. World Data Centre for Climate

If you had a 35 million euro super computer lying around what would you use it for? The stock market? Building your own internet? Try extensive climate research -- if there's a machine out there that has the answer for global warming, this one might be it. Operated by the Max Planck Institute for Meteorology and German Climate Computing Centre, The World Data Centre for Climate (WDCC) is the largest database in the world.

The WDCC boasts 220 terabytes of data readily accessible on the web including information on climate research and anticipated climatic trends, as well as 110 terabytes (or 24,500 DVD's) worth of climate simulation data. To top it off, six petabytes worth of additional information are stored on magnetic tapes for easy access. How much data is six petabyte you ask? Try 3 times the amount of ALL the U.S. academic research libraries contents combined.

Sip, habría que ir al site de Max Planck Institute, para averiguar..
porque los mas chicos creo van a DB distrib.

HPSS

There are various databases around the world using technology similar to that found in our countdown's second largest database NERSC. The technology is known as High Performance Storage System or HPSS.
http://www.hpss-collaboration.org/hpss/a...ration.jsp

UN tema interesante para investigar, hace poco seguí un enlace de los ads de google, sobre BD HA (gratis 1eros 4 nodos )..
Comercialmente hoy oracle es punta, antes Ingres lo superaba en VMS, algo de eso se abrió ..
pero en super, no sé capaz IMS o quien sabe ..

En 1. World Data Centre for Climate = Oracle http://www.mad.zmaw.de/tool-bar/search/

En otros HPSS http://www.hpss-collaboration.org/hpss/a...fering.jsp = DB2 y *NIX de todos los gustos, como el querido Digital Tru64 UNIX

sorry, me enhanché...........