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{{Quantities of bytes}}
* '''Telecoms''': AT&T has about 19 petabytes of data transferred through their networks each day
A '''petabyte''' (derived from the [[SI prefix]] ''[[peta-]]'' ) is a unit of [[information]] equal to one [[quadrillion]] ([[Long and short scales|short scale]]) [[byte]]s, or 1000 [[terabytes]]. It is abbreviated '''PB'''. The prefix peta- (P) indicates a power of 1000:
* 1 PB = 1,000,000,000,000,000 B = 1000<sup>5</sup> B = 10<sup>15</sup> B.

However, historically, the term petabyte may have been used confusingly to designate 1024<sup>5</sup> bytes (which is actually a "[[pebibyte]]").

==Petabytes in use==
Examples of the use of "petabyte" to describe data sizes in different fields are:
<!-- To avoid an infinitely long list, limited to one example per field-->

* '''Computer hardware''': [[Teradata]] Database 12 has a capacity of 50 petabytes of compressed data.<ref>{{cite web|url=http://www.teradata.com/t/products-and-services/database/teradata-12/ |title=Teradata Database 13.0 - Database Management - SQL Database |publisher=Teradata.com |accessdate=2009-08-16}}</ref><ref name=BBC20040920>{{cite news |title=Thanks for memory (but I need more) |author=Paul Rubens |date=20 Sep 2004 |newspaper=BBC News |url=http://news.bbc.co.uk/1/hi/magazine/3673262.stm |quote=Of course there's no such thing as a petabyte iPod, but the good news is that we may not have too long to wait for one. Hitachi Data Systems already sells a product called the TagmaStore Universal Storage Platform which can manage up to 32 petabytes of storage for the very largest corporations, so you'd have to conclude that a pocket-sized consumer version isn't out of the question in a decade or so.}}</ref>

* '''Internet''': [[Google]] processes about 24 petabytes of data per day.<ref>{{cite web|url=http://portal.acm.org/citation.cfm?doid=1327452.1327492 |title=MapReduce |publisher=Portal.acm.org |accessdate=2009-08-16}}</ref>

* '''Telecoms''': AT&T has about 19 petabytes of data transferred through their networks each day.<ref>{{cite web|url=http://www.att.com/gen/press-room?pid=4800&cdvn=news&newsarticleid=30623 |title=AT&T- News Room |publisher=Att.com |date=2008-10-23 |accessdate=2009-08-16}}</ref>

* '''Physics''': The 4 experiments in the [[Large Hadron Collider]] will produce about 15 petabytes of data per year, which will be distributed over the [[LHC Computing Grid]].<ref>{{cite web|url=http://www.interactions.org/cms/?pid=1027032 |title=3 October 2008 - CERN: Let the number-crunching begin: the Worldwide LHC Computing Grid celebrates first data |publisher=Interactions.org |accessdate=2009-08-16}}</ref>

* '''P2P networks''': As of June 2010, [[Isohunt]] has about 10.8 petabytes of files contained in [[BitTorrent (protocol)|torrents]] indexed globally.<ref>{{cite web|url=http://isohunt.com/forum/viewtopic.php?t=145853 |title=isoHunt Forums :: View topic - 1.1 Petabytes of files on BitTorrent, network issues |publisher=Isohunt.com |accessdate=2009-10-04}}</ref>

* '''Archives''': The [[Internet Archive]] contains about 3 petabytes of data, and is growing at the rate of about 100 terabytes per month as of March, 2009.<ref>{{cite web|url=http://www.archive.org/about/faqs.php |title=Internet Archive Frequently Asked Questions |publisher=Archive.org |accessdate=2009-08-16}}</ref><ref>{{cite web|last=Mearian |first=Lucas |url=http://www.computerworld.com/action/article.do?command=viewArticleBasic&taxonomyName=hardware&articleId=9130081&taxonomyId=12&intsrc=kc_top |title=Internet Archive to unveil massive Wayback Machine data center |publisher=Computerworld.com |date=March 19, 2009 |accessdate=2009-08-16}}</ref>

* '''Games''': ''[[World of Warcraft]]'' utilizes 1.3 petabytes of storage to maintain its game.<ref>{{cite web|url=http://www.industrygamers.com/news/blizzard-drops-world-of-warcraft-stat-bomb/ |title=Blizzard Drops World of Warcraft Stat Bomb |publisher=Industrygamers.com |date=September 18, 2009 |first=David|last=Radd|accessdate=2009-09-18}}</ref> ''[[Valve Steam]]'' delivers 20 petabytes of content monthly. <ref>{{cite web|title=Steamworks Brochure 2010|url=http://www.steampowered.com/steamworks/SteamworksBrochure2010.pdf|Steamworks Brochure 2010|publisher=SteamPowered.com}}</ref>

* '''Film''': The 2009 movie [[Avatar (2009 film)|''Avatar'']] is reported to have taken over 1 petabyte of local storage at [[Weta Digital]] for the rendering of the 3D CGI effects.<ref>{{cite web|url=http://thenextweb.com/2010/01/01/avatar-takes-1-petabyte-storage-space-equivalent-32-year-long-mp3/ |title=Believe it or not: Avatar takes 1 petabyte of storage space |publisher=Thenextweb.com |date=January 1, 2010 |first=Zee|last=Kane|accessdate=2010-01-14}}</ref><ref>{{cite web|url=http://www.information-management.com/newsletters/avatar_data_processing-10016774-1.html |title=Processing AVATAR |publisher=Information-management.com |date=December 21, 2009 |first=Jim|last=Ericson|accessdate=2010-01-14}}</ref>

==See also==
* [[Orders of magnitude (data)]]

==References==
{{reflist|2}}

{{Computer Storage Volumes}}

[[Category:Units of information]]

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[[es:Petabyte]]
[[eu:Petabyte]]
[[fa:پتابایت]]
[[ko:페타바이트]]
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Revision as of 14:14, 5 June 2010

Multiple-byte units
Decimal
Value Metric
1000 kB kilobyte
10002 MB megabyte
10003 GB gigabyte
10004 TB terabyte
10005 PB petabyte
10006 EB exabyte
10007 ZB zettabyte
10008 YB yottabyte
10009 RB ronnabyte
100010 QB quettabyte
Binary
Value IEC Memory
1024 KiB kibibyte KB kilobyte
10242 MiB mebibyte MB megabyte
10243 GiB gibibyte GB gigabyte
10244 TiB tebibyte TB terabyte
10245 PiB pebibyte
10246 EiB exbibyte
10247 ZiB zebibyte
10248 YiB yobibyte
Orders of magnitude of data

A petabyte (derived from the SI prefix peta- ) is a unit of information equal to one quadrillion (short scale) bytes, or 1000 terabytes. It is abbreviated PB. The prefix peta- (P) indicates a power of 1000:

  • 1 PB = 1,000,000,000,000,000 B = 10005 B = 1015 B.

However, historically, the term petabyte may have been used confusingly to designate 10245 bytes (which is actually a "pebibyte").

Petabytes in use

Examples of the use of "petabyte" to describe data sizes in different fields are:

  • Computer hardware: Teradata Database 12 has a capacity of 50 petabytes of compressed data.[1][2]
  • Internet: Google processes about 24 petabytes of data per day.[3]
  • Telecoms: AT&T has about 19 petabytes of data transferred through their networks each day.[4]
  • P2P networks: As of June 2010, Isohunt has about 10.8 petabytes of files contained in torrents indexed globally.[6]
  • Archives: The Internet Archive contains about 3 petabytes of data, and is growing at the rate of about 100 terabytes per month as of March, 2009.[7][8]
  • Film: The 2009 movie Avatar is reported to have taken over 1 petabyte of local storage at Weta Digital for the rendering of the 3D CGI effects.[11][12]

See also

References

  1. ^ "Teradata Database 13.0 - Database Management - SQL Database". Teradata.com. Retrieved 2009-08-16.
  2. ^ Paul Rubens (20 Sep 2004). "Thanks for memory (but I need more)". BBC News. Of course there's no such thing as a petabyte iPod, but the good news is that we may not have too long to wait for one. Hitachi Data Systems already sells a product called the TagmaStore Universal Storage Platform which can manage up to 32 petabytes of storage for the very largest corporations, so you'd have to conclude that a pocket-sized consumer version isn't out of the question in a decade or so.
  3. ^ "MapReduce". Portal.acm.org. Retrieved 2009-08-16.
  4. ^ "AT&T- News Room". Att.com. 2008-10-23. Retrieved 2009-08-16.
  5. ^ "3 October 2008 - CERN: Let the number-crunching begin: the Worldwide LHC Computing Grid celebrates first data". Interactions.org. Retrieved 2009-08-16.
  6. ^ "isoHunt Forums :: View topic - 1.1 Petabytes of files on BitTorrent, network issues". Isohunt.com. Retrieved 2009-10-04.
  7. ^ "Internet Archive Frequently Asked Questions". Archive.org. Retrieved 2009-08-16.
  8. ^ Mearian, Lucas (March 19, 2009). "Internet Archive to unveil massive Wayback Machine data center". Computerworld.com. Retrieved 2009-08-16.
  9. ^ Radd, David (September 18, 2009). "Blizzard Drops World of Warcraft Stat Bomb". Industrygamers.com. Retrieved 2009-09-18.
  10. ^ "Steamworks Brochure 2010" (PDF). SteamPowered.com. {{cite web}}: Text "Steamworks Brochure 2010" ignored (help)
  11. ^ Kane, Zee (January 1, 2010). "Believe it or not: Avatar takes 1 petabyte of storage space". Thenextweb.com. Retrieved 2010-01-14.
  12. ^ Ericson, Jim (December 21, 2009). "Processing AVATAR". Information-management.com. Retrieved 2010-01-14.