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((Short description|Storage technology))
((distinguish|Archival Disc))
((more citations needed|date=September 2014))
((Use dmy dates|date=February 2015))
((infobox media
| title = Optical Disc Archive
| logo = Sony-Optical-Archive-Disc-Icon.png
| image = Optical Disc Archive With Case.jpg
| caption = 
| type = [[Optical disc]]
| encoding = WORM (write once)
| use = Digital Data Archival (50~100+ Years)
| capacity = 300GB~5.5&nbsp;TB (per cartridge)
| write = Optical Blu-ray Laser (405nm)
| weight = 
| standard = UDF (Universal Disc Format)
| blocksize = 
| owner = [[Sony Corporation]]
| manufacturer = [[Sony]], [[TDK]], [[Panasonic]]
| released = 2012
))
'''Optical Disc Archive''' (ODA) is part of Sony's proprietary PetaSite data archival library system.

The Sony PetaSite (Sony CSM-60/100/200 units) was based on SAIT2 & [[Linear Tape-Open|LTO2]] linear tape drives, in partnership with IBM from 1998~2012, when it was phased out for optical based media.

Marketed as a longer life and more durable competitor to the popular tape based [[Linear Tape-Open|Linear Open Tape]] (LTO) storage systems using a similar removable cartridge system, where each cartridge holds 12 optical discs, or 6,420 discs per [[19-inch rack|42U rack]], the first generation were single sided discs and re-writable up to 1.5&nbsp;TB using Sony's well known [[Professional Disc]] used in [[XDCAM|XDCAM cameras]] and on-site archival.

The generation 3 version of the cartridge, using the Sony, Panasonic jointly developed [[Archival Disc|archival discs]] (AD) each cartridge has a total capacity of 5.5&nbsp;TB. This uses 11 optical discs, 3 layers on each side, at 500&nbsp;GB per disc,<ref>((Cite web |date=2018-10-13 |title=White Paper: Archival Disc Technology 1st Edition |url=https://panasonic.net/cns/archiver/pdf/E_WhitePaper_ArchivalDisc_Ver100.pdf |access-date=2023-02-20 |archive-url=https://web.archive.org/web/20181013014334/https://panasonic.net/cns/archiver/pdf/E_WhitePaper_ArchivalDisc_Ver100.pdf |archive-date=13 October 2018 ))</ref> with next generation planned to reach 1&nbsp;TB a disc or 12&nbsp;TB a cartridge.<ref name=":0">((Cite web |title=Sony Announces Optical Disc Archive Generation 3 New Long-Life Media with Increased Capacity and Higher Speed Drive |url=https://pro.sony/en_GB/press/optical-disc-archive-generation-3-new-long-life-media |access-date=2019-11-15 |website=pro.sony |language=en))</ref>

Each of the internal optical discs is similar to, but not directly compatible with, [[Blu-ray]] or Blu-Ray-BDXL systems.

== Market ==
Sony Optical Archive is marketed as an offline, online, [[Nearline storage|nearline]], [[Archival|cold archival]] and one way data storage solution for broadcasting, education, and legal institutions for long term scaled use and easy digital access.

Media and hardware lifecycle and reliability benefits compared to tape-based media include the elimination of friction-induced media and tape head wear and shedding, and a humidity-proof polycarbonate media substrate (similar to [[M-DISC|M-Disc]]) which is not affected by electromagnetic/gamma/alpha radiation, most chemicals or fluid contaminants. Lastly, the usage of a standard 405&nbsp;nm optical [[laser]] (The same as used in current [[Blu-ray|Blu-ray & Blu-Ray BDXL]] reader/writers) helps ensure long-term hardware component availability to facilitate long-term data retrieval.

Along with its large data storage capacity, this makes the format ideal for protection of large datasets against unexpected events like natural disasters. For example, since the [[2011 Tōhoku earthquake and tsunami]] and the cessation of production of the [[HDCAM|HDCAM & HDCAM SR]] master format as well as a broadcast industry migration to file based digital media delivery, this overall resulted in a higher demand for reliable backup and digital access to media libraries leading to wide adoption of the Optical Archive system in Japan for backup of 4K and HDR content.<ref name=":1" />

The Optical Archive cartridge system can be used on the desktop, or in scaled networked storage using the PetaSite [[optical jukebox]]. The storage jukeboxes take up 7U of standard rackmount space with 30 a cartridge master unit (ODS-L30M) and 60 cartridge (ODS-L60E) and 100 (ODS-L100E) cartridge expansion units for a combined total of 535 cartridges or 6,420 discs per [[19-inch rack|42U rack]], equaling a current 2.9425PB of total storage (Using 5.5&nbsp;TB cartridges).

== History and development ==
In 1996 "PetaSite" was trade marked by Sony Kabushiki Kaisha.<ref>((Cite web |date=2023-02-20 |title=PETASITE Trademark of Sony Kabushiki Kaisha - Serial Number 75049082 - Alter |url=https://alter.com/trademarks/petasite-75049082 |access-date=2023-02-20 |archive-url=https://web.archive.org/web/20230220130442/https://alter.com/trademarks/petasite-75049082 |archive-date=20 February 2023 ))</ref> (renewed in 2018)

In 2001 "PetaSite was announced to the global market"<ref>((Cite web |date=2021-10-14 |title=Sony Global - Press Release - SONY and Sobey Digital Form Strategic Alliance To Develop MPEG Products |url=https://www.sony.com/en/SonyInfo/News/Press_Archive/200108/01-0821BE/ |access-date=2023-02-20 |archive-url=https://web.archive.org/web/20211014114147/https://www.sony.com/en/SonyInfo/News/Press_Archive/200108/01-0821BE/ |archive-date=14 October 2021 ))</ref>

In 2004 the CSM60, CSM100, CSM200 with 50~108&nbsp;TB via SAIT2/[[Linear Tape-Open|LTO2 tape]] cartridges was launched<ref>((Cite web |date=2023-02-20 |title=Sony CSM Series SAIT PetaSite™ Systems |url=http://www.broadcaststore.com/pdf/model/797970/csm_60_100-datasheet.pdf |access-date=2023-02-20 |archive-url=https://web.archive.org/web/20230220124243/http://www.broadcaststore.com/pdf/model/797970/csm_60_100-datasheet.pdf |archive-date=20 February 2023 ))</ref>

In 2006 Sony & NEC start a joint venture in Optical Archives and Blu-ray/DVD reader/writer units founding

2009~Current IBM/Sony stop sale of the CSM and SAIT2/LTO2 based systems, still providing service support for existing systems.

In 2012 Optical switchover Sony released their first desktop ODA cartridge readers<ref>((cite press release | url=http://www.sony.net/SonyInfo/News/Press/201204/12-058E/ | title=Sony Moves Industry toward the Creation of New Mass-Storage Optical Disc Archive Solutions | publisher=[[Sony Corporation]] | date=2012-04-16))</ref> for consumer/prosumer desktop use (USB 3.0 Type B) during the [[NAB Show]] with the first units shipping in February 2013 shifting the PetaSite brand entirely to optical based media.

In 2015 Sony strategically acquired Optical Archive Inc. that was owned by Frank Frankovsky,<ref>((cite news |title=Sony buys Frank Frankovsky's optical storage start-up |pages=1 |work=Data Center Dynamics |url=https://www.datacenterdynamics.com/en/news/sony-buys-frank-frankovskys-optical-storage-start-up/ |url-status=live |access-date=25 June 2023 |archive-date=25 June 2023 |archive-url=https://web.archive.org/web/20230625205505/https://www.datacenterdynamics.com/en/news/sony-buys-frank-frankovskys-optical-storage-start-up/))</ref> giving Sony technology for current automatic store and retrieval systems, the foundation of the modular [[19-inch rack|7U rack-mount]] based system PetaSite uses today.

In 2020, Sony released the third generation system,<ref>((cite web |date=3 June 2020 |title=Sony Launches Generation 3 PetaSite Optical Disc Archive Library with 66 Percent Greater Capacity and 50 Percent Improvement in Archive Performance Versus Previous Generation |url=https://money.yahoo.com/sony-launches-generation-3-petasite-163000038.html |archive-url= |archive-date= |access-date=4 January 2021 |website=Yahoo!))</ref> with new 5.5&nbsp;TB cartridges and an updated capability to the PetaSite ecosystem alongside desktop readers with USB Type-C 3.2 interfaces.

In 2023, The Sony web site shows all of the ODA drives and PetaSite libraries as discontinued products.

== Cartridge Media ==

{| class="wikitable" style="text-align:center"
|-
! Product !! Introduced !! Gen. !! Capacity (GB)!! Write Type
|-
| ODC300R || rowspan="6" |2013 || rowspan="6" | 1 || 300|| Write-Once
|-
| ODC300RE || 300 || Rewritable
|-
| ODC600R || 600 || Write-Once
|-
| ODC600RE || 600 || Rewritable
|-
| ODC1200RE || 1200 || Rewritable
|-
| ODC1500R || 1500 || Write-Once
|-
| ODC3300R || 2016 || 2 || 3300 || Write-Once
|-
| ODC5500R || 2019 || 3 || |5500 || Write-Once
|}

== Hardware ==
The PetaSite system, like [[Linear Tape-Open|LTO]], consists of reading/writing bays for data access and storage bays for non-active storage.
{| class="wikitable" style="text-align:center"
|-
! Product !! Introduced !! Category !! Maximum Number of Drives !! Number of Slots
!Reads Media Generation
!Writes Media Generation
|-
| ODS-D55U || 2013 || Stand Alone Drive || 1 || N/A
|1
|1
|-
| ODS-D77U || 2014 || Stand Alone Drive || 1 || N/A
|1
|1
|-
|ODS-D280U
|2016
|Stand Alone Drive
|1
|N/A
|1,2
|2
|-
|ODS-D380U
|2019
|Stand Alone Drive
|1
|N/A
|1,2,3
|2,3
|-
| ODS-L10 || 2013 || Small Library || 2 || 10
|1
|1
|-
| ODS-L30M || 2014 || Library Master || 2 || 30
|1,2,3
|1,2,3
|-
| ODS-L60E || 2014 || Library Extender || 4 || 61
|1,2
|1,2
|-
| ODS-L100E || 2014 || Library Extender || 0 || 101
|n/a
|n/a
|-
|PetaSite EX Master Module
|2019
|Library Master
|21
|912
|1,2,3
|2,3
|-
|PetaSite EX Cartridge Extension Module
|2019
|Library Extender
|0
|816
|n/a
|n/a
|-
|PetaSite EX Drive Extension Module
|2019
|Library Extender
|21
|96
|1,2,3
|2,3
|}
The PetaSite system has datacenter interconnect systems via Copper (Ethernet 1~10GbE) or Fiber Optical links (SFP+ 10GbE~100GbE) with desktop interfaces using USB 3.2 Gen 2 (20&nbsp;Gbit/s) with 19.5v DC power.

== Software ==
Sony Optical Archive & PetaSite uses a [[content management software]]<ref>((Cite web |title=Content Manager |url=https://pro.sony/en_GB/products/archiving-software/content-manager |access-date=2023-03-07 |website=pro.sony |language=en))</ref> simply called File Manager<ref>((Cite web |title=Sony Creative Software - Optical Disc Archive File Manager2 |url=https://www.sonycreativesoftware.com/download/filemanager |access-date=2023-03-07 |website=www.sonycreativesoftware.com))</ref> currently in its second major revision "File Manager 2"

The commercial software suite is built around and uses open-source software primarily [[Java (programming language)|Java]], [[Apache Tomcat]], and the open source [[MariaDB]].

There has also been 3rd party software support for writing to ODA systems.

== Roadmap ==

Generation 3 of the Optical Disc Archive technology was announced for early-2020 release.<ref name=":0" /> Generation 3 increased the cartridge capacity to 5.5&nbsp;TB, the read speed to 375&nbsp;MB/s and the write speed (with verification on) to 187.5&nbsp;MB/s.

== Media roadmap ==

[[Sony Corporation]] and [[Panasonic Corporation]] on announced on 10&nbsp;March 2014 their cooperation in producing a new media trademarked as [[Archival disc]]. The [[Archival disc]] media<ref name="SpectraLogicDigitalDataStorageOutlook2017">((cite web |title=Digital Data Storage Outlook 2017 |url=https://spectralogic.com/wp-content/uploads/white-paper-digital-data-storage-outlook-2017-v3.pdf |website=Spectra |publisher=Spectra Logic |access-date=11 July 2018 |page=7(Solid-State), 10(Magnetic Disk), 14(Tape), 17(Optical) |year=2017))</ref> will be used in future Optical Disc Archive Media to achieve at least 12&nbsp;TB of storage.

== Fabrication ==
Fabrication of the optical discs is licensed to TDK but primarily fabricated and developed by Sony & Panasonic.

== 3rd Party Software Support ==

The OTA archival system is supported by a few 3rd party media asset management platforms notably Square Box.<ref>((Cite web |title=Sony ODA Archive & Retrieve |url=https://docs.squarebox.com/tutorials/archiving/Sony-ODA-Archive-and-Retrieve.html |access-date=2023-06-07 |website=docs.squarebox.com))</ref>

== Commercial Adoption PetaSite (Tape Based) ==

Sony PetaSite for the systems full 1998~2012 history before optical switch over.

In 1998 [https://www.raiplay.it/dirette/rainews24 RAI 24], Italian broadcaster becomes the first western adopter of the Sony optical archive system using SAIT2 / [[LTO-2|LTO2]] Media.

In 1999 [[Telemadrid]], Spain adopts OTA for Approximately 200,000 hours (350,000 tapes) of shelf based storage is managed by the archive system.

in 2000 [[:de:Publisuisse|publisuisse]], Switzerland the first Europe based archive system is deployed for commercials

in 2001 [[CNN]] , North American broadcaster adopts the format for analogue and digital tape archival for over 120,000 hours of media.

in 2003 Beeld en Geluid, Netherlands alongside Blue Order and LogicaCMG phase in optical archival for the national audio/video archive of over 650,000 hours in various formats.

in 2004 NOB, Netherlands, holding 1,000 hours of Transmission Archive content.

in 2004 Rotana, Beirut, adopted Sony OTA to store a substantial tape library archive (4,000 - 5,000 Betacam tapes equivalent to 7,600 hours of content)

in 2005~2007 ITN, UK Sony was consulted in 2005 with adoption approved in 2007 for the ITN DAM Project ITN will grow their archive by 8,000 hours per year. (Archive System for Clip Sales and News)

in 2007 SIC, Portugal Sony OTA was adopted for scale to store approximately 12,000 hours.

in 2008 TV Valencia, Spain Archive System for News Transmission and Logging

in 2008 RTP, Portugal adopted Sony PetaSite for Digital Asset Management (DAM) Project

in 2008 GMTV, UK Refurbishment of GMTV's production processes.

== Commercial Adoption PetaSite (Optical) ==
in 2009 RaceTech, UK  Sony delivered an [[Professional Disc|XDCAM disc]] based data archive solution which aims to improve the operational workflow between the "at track" OB trucks and the central headquarters operation. allowed RaceTech to digitally record and archive over 1,400 professional horse race days, which equates to in excess of 9,000 races and over 7,000 hours of recorded material in the UK every year.

in 2009 Telemadrid, Spain Digital Asset Management (DAM) Project

In 2016 Nagoya Television Broadcasting Co., Ltd. adopted the second generation of the PetaSite system for Digibeta and HDCAM digital archival.<ref name=":1">((Cite web |date=2023-02-20 |title=名古屋テレビ放送株式会社 様 ((!)) 事例紹介 ((!)) オプティカルディスク・アーカイブ ((!)) ソニー |url=https://www.sony.jp/oda/casestudy/nagoyatv.html |access-date=2023-02-20 |archive-url=https://web.archive.org/web/20230220133200/https://www.sony.jp/oda/casestudy/nagoyatv.html |archive-date=20 February 2023 ))</ref>

In 2018 RayCom Sports, adopted the third generation of Sony Optical Disc storing HDCAM, DVCPro and Betacam tapes alongside migrating their existing optical [[XDCAM]] archives using the [[Professional Disc]]<ref>((Cite web |author=<!--Staff writer(s); no by-line.--> |date=2019-08-08 |title=Raycom Sports Rearranges Archival Strategy With Sony Optical Disc |url=https://www.sportsvideo.org/2019/08/08/raycom-sports-rearranges-archival-strategy-with-sony-optical-disc/ |access-date=2023-03-10 |website=Sports Video Group |language=en))</ref>

In 2017 Ishikawa Television Broadcasting Co., Ltd. adopted the second generation of the PetaSite system for on site and off-site backups.<ref>((Cite web |title=Sony OTA case study Ishikawa Television |url=https://www.sony.jp/oda/casestudy/itc.html |access-date=2023-02-20 |website=ソニー製品情報・ソニーストア |language=ja))</ref>

In 2021 Montclair State University, alongside adopting Sony PTZ equipment adopted Sony's ODS-L30M PetaSite for on-site backup.<ref>((Cite web |author=<!--Staff writer(s); no by-line.--> |date=2021-04-30 |title=Sony's Optical Disc Archive Easily Stores and Secures Montclair State University's Most Important Content |url=https://www.avnation.tv/2021/04/30/sonys-optical-disc-archive-easily-stores-and-secures-montclair-state-universitys-most-important-content/ |access-date=2023-03-11 |website=AVNation TV |language=en-us))</ref>

In 2022 the VHS-decode project recommended ODA for at scale archival of [[Analog television|analog tape]] media formats, preserving raw [[Frequency modulation|FM RF]] video/audio signals in FLAC compressed form for future software defined processing & playback.<ref>((Cite web |title=Media Archival Guide |url=https://github.com/oyvindln/vhs-decode/wiki/Media-Archival-Guide |access-date=2023-06-25 |website=GitHub |language=en))</ref>

==See also==
* [[Archival Disc]]
* [[Professional Disc|Sony Professional Disc]]
* [[M-DISC|M-Disc]]
* [[Blu-ray]]

== Notes ==

IBM Software collaborations
Sony Flexicart / Sony Betacart was employed alongside the PetaSite systems for ingest of tape media. (Sony Flexicart is used for mass mechanically automated digitization of videotape)

==References==
((reflist))

==External links==
*((official website))
* [https://obsoletemedia.org/optical-disc-archive/ Sony Optical Disc Archive (2013 – )] at the Museum of Obsolete Media
((commonscat))
[[Category:Sony hardware]]
[[Category:Optical computer storage media]]

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