blog/What_would_it_cost_to_store_all_phone_calls_in_Norway_.html

   1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
   2           "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
   3 <html xmlns="http://www.w3.org/1999/xhtml" dir="ltr">
   4   <head>
   5     <meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
   6     <title>Petter Reinholdtsen: What would it cost to store all phone calls in Norway?</title>
   7     <link rel="stylesheet" type="text/css" media="screen" href="http://people.skolelinux.org/pere/blog/style.css" />
   8     <link rel="stylesheet" type="text/css" media="screen" href="http://people.skolelinux.org/pere/blog/vim.css" />
   9
  10
  11   </head>
  12   <body>
  13     <div class="title">
  14  <h1>
  15      <a href="http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  16
  17  </h1>
  18
  19 </div>
  20
  21
  22     <div class="entry">
  23       <div class="title">What would it cost to store all phone calls in Norway?</div>
  24       <div class="date"> 1st May 2015</div>
  25       <div class="body"><p>Many years ago, a friend of mine calculated how much it would cost
  26 to store the sound of all phone calls in Norway, and came up with the
  27 cost of around 20 million NOK (2.4 mill EUR) for all the calls in a
  28 year.  I got curious and wondered what the same calculation would look
  29 like today.  To do so one need an idea of how much data storage is
  30 needed for each minute of sound, how many minutes all the calls in
  31 Norway sums up to, and the cost of data storage.</p>
  32
  33 <p>The 2005 numbers are from
  34 <a href="http://www.digi.no/analyser/2005/10/04/vi-prater-stadig-mindre-i-roret">digi.no</a>,
  35 the 2012 numbers are from
  36 <a href="http://www.nkom.no/aktuelt/nyheter/fortsatt-vekst-i-det-norske-ekommarkedet">a
  37 NKOM report</a>, and I got the 2013 numbers after asking NKOM via
  38 email.  I was told the numbers for 2014 will be presented May 20th,
  39 and decided not to wait for those, as I doubt they will be very
  40 different from the numbers from 2013.</p>
  41
  42 <p>The amount of data storage per minute sound depend on the wanted
  43 quality, and for phone calls it is generally believed that 8 Kbit/s is
  44 enough.  See for example a
  45 <a href="http://www.cisco.com/c/en/us/support/docs/voice/voice-quality/7934-bwidth-consume.html#topic1">summary
  46 on voice quality from Cisco</a> for some alternatives.  8 Kbit/s is 60
  47 Kbytes/min, and this can be multiplied with the number of call minutes
  48 to get the storage requirements.</p>
  49
  50 <p>Storage prices varies a lot, depending on speed, backup strategies,
  51 availability requirements etc.  But a simple way to calculate can be
  52 to use the price of a TiB-disk (around 1000 NOK / 120 EUR) and double
  53 it to take space, power and redundancy.  It could be much higher with
  54 high speed and good redundancy requirements.</p>
  55
  56 <p>But back to the question, What would it cost to store all phone
  57 calls in Norway?  Not much.  Here is a small table showing the
  58 estimated cost, which is within the budget constraint of most medium
  59 and large organisations:</p>
  60
  61 <table border="1">
  62 <tr><th>Year</th><th>Call minutes</th><th>Size</th><th>Price in NOK / EUR</th></tr>
  63 <tr><td>2005</td><td align="right">24 000 000 000</td><td align="right">1.3 PiB</td><td align="right">3 mill / 358 000</td></tr>
  64 <tr><td>2012</td><td align="right">18 000 000 000</td><td align="right">1.0 PiB</td><td align="right">2.2 mill / 262 000</td></tr>
  65 <tr><td>2013</td><td align="right">17 000 000 000</td><td align="right">950 TiB</td><td align="right">2.1 mill/ 250 000</td></tr>
  66 </table>
  67
  68 <p>This is the cost of buying the storage.  Maintenance need to be
  69 taken into account too, but calculating that is left as an exercise
  70 for the reader.  But it is obvious to me from those numbers that
  71 recording the sound of all phone calls in Norway is not going to be
  72 stopped because it is too expensive.  I wonder if someone already is
  73 collecting the data?</p>
  74 </div>
  75
  76       <div class="tags">Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern</a>, <a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance</a>.</div>
  77
  78
  79     </div>
  80
  81
  82
  83
  84     <div id="sidebar">
  85
  86
  87
  88 <h2>Archive</h2>
  89 <ul>
  90
  91 <li>2015
  92 <ul>
  93
  94 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/01/">January (7)</a></li>
  95
  96 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/02/">February (6)</a></li>
  97
  98 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/03/">March (1)</a></li>
  99
 100 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/04/">April (4)</a></li>
 101
 102 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/05/">May (1)</a></li>
 103
 104 </ul></li>
 105
 106 <li>2014
 107 <ul>
 108
 109 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/01/">January (2)</a></li>
 110
 111 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/02/">February (3)</a></li>
 112
 113 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/03/">March (8)</a></li>
 114
 115 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/04/">April (7)</a></li>
 116
 117 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/05/">May (1)</a></li>
 118
 119 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/06/">June (2)</a></li>
 120
 121 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/07/">July (2)</a></li>
 122
 123 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/08/">August (2)</a></li>
 124
 125 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/09/">September (5)</a></li>
 126
 127 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/10/">October (6)</a></li>
 128
 129 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/11/">November (3)</a></li>
 130
 131 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/12/">December (5)</a></li>
 132
 133 </ul></li>
 134
 135 <li>2013
 136 <ul>
 137
 138 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
 139
 140 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
 141
 142 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/03/">March (9)</a></li>
 143
 144 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
 145
 146 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
 147
 148 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/06/">June (10)</a></li>
 149
 150 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
 151
 152 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
 153
 154 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/09/">September (5)</a></li>
 155
 156 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/10/">October (7)</a></li>
 157
 158 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/11/">November (9)</a></li>
 159
 160 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/12/">December (3)</a></li>
 161
 162 </ul></li>
 163
 164 <li>2012
 165 <ul>
 166
 167 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
 168
 169 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
 170
 171 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
 172
 173 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
 174
 175 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 176
 177 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 178
 179 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 180
 181 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 182
 183 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 184
 185 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 186
 187 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 188
 189 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
 190
 191 </ul></li>
 192
 193 <li>2011
 194 <ul>
 195
 196 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 197
 198 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 199
 200 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 201
 202 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 203
 204 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 205
 206 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 207
 208 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 209
 210 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 211
 212 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 213
 214 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 215
 216 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 217
 218 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 219
 220 </ul></li>
 221
 222 <li>2010
 223 <ul>
 224
 225 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 226
 227 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 228
 229 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 230
 231 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 232
 233 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
 234
 235 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
 236
 237 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
 238
 239 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
 240
 241 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
 242
 243 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
 244
 245 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
 246
 247 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
 248
 249 </ul></li>
 250
 251 <li>2009
 252 <ul>
 253
 254 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 255
 256 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
 257
 258 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
 259
 260 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
 261
 262 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
 263
 264 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
 265
 266 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
 267
 268 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
 269
 270 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
 271
 272 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
 273
 274 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 275
 276 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 277
 278 </ul></li>
 279
 280 <li>2008
 281 <ul>
 282
 283 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 284
 285 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 286
 287 </ul></li>
 288
 289 </ul>
 290
 291
 292
 293 <h2>Tags</h2>
 294 <ul>
 295
 296  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (13)</a></li>
 297
 298  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
 299
 300  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
 301
 302  <li><a href="http://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
 303
 304  <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (8)</a></li>
 305
 306  <li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (15)</a></li>
 307
 308  <li><a href="http://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
 309
 310  <li><a href="http://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (2)</a></li>
 311
 312  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (109)</a></li>
 313
 314  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (153)</a></li>
 315
 316  <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (10)</a></li>
 317
 318  <li><a href="http://people.skolelinux.org/pere/blog/tags/dld">dld (15)</a></li>
 319
 320  <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (13)</a></li>
 321
 322  <li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
 323
 324  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (276)</a></li>
 325
 326  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (23)</a></li>
 327
 328  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (12)</a></li>
 329
 330  <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (15)</a></li>
 331
 332  <li><a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (9)</a></li>
 333
 334  <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (14)</a></li>
 335
 336  <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (42)</a></li>
 337
 338  <li><a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (10)</a></li>
 339
 340  <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (19)</a></li>
 341
 342  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (9)</a></li>
 343
 344  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (8)</a></li>
 345
 346  <li><a href="http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (2)</a></li>
 347
 348  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
 349
 350  <li><a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (8)</a></li>
 351
 352  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (32)</a></li>
 353
 354  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (260)</a></li>
 355
 356  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (176)</a></li>
 357
 358  <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (16)</a></li>
 359
 360  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
 361
 362  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (51)</a></li>
 363
 364  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (84)</a></li>
 365
 366  <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (1)</a></li>
 367
 368  <li><a href="http://people.skolelinux.org/pere/blog/tags/reactos">reactos (1)</a></li>
 369
 370  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
 371
 372  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (3)</a></li>
 373
 374  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (9)</a></li>
 375
 376  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
 377
 378  <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (4)</a></li>
 379
 380  <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
 381
 382  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (41)</a></li>
 383
 384  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
 385
 386  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (4)</a></li>
 387
 388  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (46)</a></li>
 389
 390  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (3)</a></li>
 391
 392  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (9)</a></li>
 393
 394  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (31)</a></li>
 395
 396  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (2)</a></li>
 397
 398  <li><a href="http://people.skolelinux.org/pere/blog/tags/usenix">usenix (2)</a></li>
 399
 400  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (8)</a></li>
 401
 402  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (50)</a></li>
 403
 404  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
 405
 406  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (35)</a></li>
 407
 408 </ul>
 409
 410
 411     </div>
 412     <p style="text-align: right">
 413  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
 414 </p>
 415
 416   </body>
 417 </html>