View Single Post
  #5  
Old 22-03-2019, 12:24 PM
gary
Registered User

gary is offline
 
Join Date: Apr 2005
Location: Mt. Kuring-Gai
Posts: 5,929
Quote:
Originally Posted by multiweb View Post
I always wondered how and where they store all this critical data recorded over the years. I assume they'd have it duplicated in many different geographic locations as well?
Hi Marc,

According to the CERN web site, they are producing about 75 petabytes
(which is 75,000 terabytes) of data from experiments per year.

A lot of it they say is stored on robotic magnetic tape storage systems,
something we discussed in this thread here :-
http://www.iceinspace.com.au/forum/s...d.php?t=172578

Quote:
Originally Posted by gary
A single robotic tape storage unit can hold up to 278 petabytes.
If the same data was stored on CD, it would take more than 397 million
of them and if they were stacked on top of each other they would
form a tower 476 km high.
See http://information-technology.web.ce...omputer-centre
(includes video of robotic tape storage)
Reply With Quote