From: Petter Reinholdtsen Date: Fri, 1 May 2015 16:46:58 +0000 (+0200) Subject: Cleanup. X-Git-Url: https://pere.pagekite.me/gitweb/homepage.git/commitdiff_plain/3882048f60f47ce7edb89cc3816978cff32551f9?ds=sidebyside Cleanup. --- diff --git a/blog/data/2015-05-01-telefonsamtalelagring.txt b/blog/data/2015-05-01-telefonsamtalelagring.txt index 554fcb488a..44fcdc231f 100644 --- a/blog/data/2015-05-01-telefonsamtalelagring.txt +++ b/blog/data/2015-05-01-telefonsamtalelagring.txt @@ -1,6 +1,6 @@ Title: What would it cost to store all phone calls in Norway? Tags: english, personvern, surveillance -Date: 2015-05-01 18:40 +Date: 2015-05-01 18:50

Many years ago, a friend of mine calculated how much it would cost to store the sound of all phone calls in Norway, and came up with the @@ -11,16 +11,16 @@ minute of sound, how many minutes all the calls in Norway sums up to, and the cost of data storage.

The 2005 numbers are from -digi.no, +digi.no, the 2012 numbers are from -a +a NKOM report, and I got the 2013 numbers after asking NKOM via email.

The amount of data storage per minute sound depend on the wanted quality, and for phone calls it is generally believed that 8 Kbit/s is enough. Se for example a -summary +summary from Cisco for some alternatives. 8 Kbit/s is 60 Kbytes/min, and this can be multiplied with the number of call minutes to get the storage requirements.

@@ -36,11 +36,11 @@ calls in Norway? Not much. Here is a small table showing the estimated cost, which is within the budget constraint of most medium and large organisations:

- - - - - +
YearMinutes of callsSizePrice in NOK
200524 000 000 0001.3 PiB3 mill
201218 000 000 0001.0 PiB2.2 mill
201317 000 000 000950 TiB2.1 mill
+ + + +
YearCall minutesSizePrice in NOK
200524 000 000 0001.3 PiB3 mill
201218 000 000 0001.0 PiB2.2 mill
201317 000 000 000950 TiB2.1 mill

This is the cost of buying the storage. Maintenance need to be