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[homepage.git] / blog / index.rss

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@@ -13,11 +13,11 @@
                 <pubDate>Fri, 1 May 2015 19:30:00 +0200</pubDate>
                <description>&lt;p&gt;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
-cost of around 20 million NOK for all the calls in a year.  I got
-curious and wondered what the same calculation would look like today.
-To do so one need an idea of how much data storage is needed for each
-minute of sound, how many minutes all the calls in Norway sums up to,
-and the cost of data storage.&lt;/p&gt;
+cost of around 20 million NOK (2.4 mill EUR) for all the calls in a
+year.  I got curious and wondered what the same calculation would look
+like today.  To do so one need an idea of how much data storage is
+needed for each minute of sound, how many minutes all the calls in
+Norway sums up to, and the cost of data storage.&lt;/p&gt;
 
 &lt;p&gt;The 2005 numbers are from
 &lt;a href=&quot;http://www.digi.no/analyser/2005/10/04/vi-prater-stadig-mindre-i-roret&quot;&gt;digi.no&lt;/a&gt;,
@@ -38,9 +38,9 @@ to get the storage requirements.&lt;/p&gt;
 
 &lt;p&gt;Storage prices varies a lot, depending on speed, backup strategies,
 availability requirements etc.  But a simple way to calculate can be
-to use the price of a TiB-disk (around 1000 NOK) and double it to take
-space, power and redundancy.  It could be much higher with high speed
-and good redundancy requirements.&lt;/p&gt;
+to use the price of a TiB-disk (around 1000 NOK / 120 EUR) and double
+it to take space, power and redundancy.  It could be much higher with
+high speed and good redundancy requirements.&lt;/p&gt;
 
 &lt;p&gt;But back to the question, What would it cost to store all phone
 calls in Norway?  Not much.  Here is a small table showing the
@@ -48,10 +48,10 @@ estimated cost, which is within the budget constraint of most medium
 and large organisations:&lt;/p&gt;
 
 &lt;table border=&quot;1&quot;&gt;
-&lt;tr&gt;&lt;th&gt;Year&lt;/th&gt;&lt;th&gt;Call minutes&lt;/th&gt;&lt;th&gt;Size&lt;/th&gt;&lt;th&gt;Price in NOK&lt;/th&gt;&lt;/tr&gt;
-&lt;tr&gt;&lt;td&gt;2005&lt;/td&gt;&lt;td align=&quot;right&quot;&gt;24 000 000 000&lt;/td&gt;&lt;td align=&quot;right&quot;&gt;1.3 PiB&lt;/td&gt;&lt;td align=&quot;right&quot;&gt;3 mill&lt;/td&gt;&lt;/tr&gt;
-&lt;tr&gt;&lt;td&gt;2012&lt;/td&gt;&lt;td align=&quot;right&quot;&gt;18 000 000 000&lt;/td&gt;&lt;td align=&quot;right&quot;&gt;1.0 PiB&lt;/td&gt;&lt;td align=&quot;right&quot;&gt;2.2 mill&lt;/td&gt;&lt;/tr&gt;
-&lt;tr&gt;&lt;td&gt;2013&lt;/td&gt;&lt;td align=&quot;right&quot;&gt;17 000 000 000&lt;/td&gt;&lt;td align=&quot;right&quot;&gt;950 TiB&lt;/td&gt;&lt;td align=&quot;right&quot;&gt;2.1 mill&lt;/td&gt;&lt;/tr&gt;
+&lt;tr&gt;&lt;th&gt;Year&lt;/th&gt;&lt;th&gt;Call minutes&lt;/th&gt;&lt;th&gt;Size&lt;/th&gt;&lt;th&gt;Price in NOK / EUR&lt;/th&gt;&lt;/tr&gt;
+&lt;tr&gt;&lt;td&gt;2005&lt;/td&gt;&lt;td align=&quot;right&quot;&gt;24 000 000 000&lt;/td&gt;&lt;td align=&quot;right&quot;&gt;1.3 PiB&lt;/td&gt;&lt;td align=&quot;right&quot;&gt;3 mill / 358k&lt;/td&gt;&lt;/tr&gt;
+&lt;tr&gt;&lt;td&gt;2012&lt;/td&gt;&lt;td align=&quot;right&quot;&gt;18 000 000 000&lt;/td&gt;&lt;td align=&quot;right&quot;&gt;1.0 PiB&lt;/td&gt;&lt;td align=&quot;right&quot;&gt;2.2 mill / 262k EUR&lt;/td&gt;&lt;/tr&gt;
+&lt;tr&gt;&lt;td&gt;2013&lt;/td&gt;&lt;td align=&quot;right&quot;&gt;17 000 000 000&lt;/td&gt;&lt;td align=&quot;right&quot;&gt;950 TiB&lt;/td&gt;&lt;td align=&quot;right&quot;&gt;2.1 mill/ 250k EUR&lt;/td&gt;&lt;/tr&gt;
 &lt;/table&gt;
 
 &lt;p&gt;This is the cost of buying the storage.  Maintenance need to be