The Sony PetaSite (Sony CSM-60/100/200 units) was based on SAIT2 & 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 Open Tape (LTO) storage systems using a similar removable cartridge system, where each cartridge holds 12 optical discs, or 6,420 discs per 42U rack, the first generation were single sided discs and re-writable up to 1.5TB using Sony's well known Professional Disc used in XDCAM cameras and on-site archival.
The generation 3 version of the cartridge, using the Sony, Panasonic jointly developed archival discs (AD) each cartridge has a total capacity of 5.5TB. This uses 11 optical discs, 3 layers on each side, at 500GB per disc,[1] with next generation planned to reach 1TB a disc or 12TB a cartridge.[2]
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, 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) which is not affected by electromagnetic/gamma/alpha radiation, most chemicals or fluid contaminants. Lastly, the usage of a standard 405nm optical laser (The same as used in current 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 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.[3]
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 42U rack, equaling a current 2.9425 PB of total storage (Using 5.5TB cartridges).
History and development
In 1996 "PetaSite" was trade marked by Sony Kabushiki Kaisha.[4] (renewed in 2018)
In 2001 "PetaSite was announced to the global market"[5]
In 2004 the CSM60, CSM100, CSM200 with 50~108TB via SAIT2/LTO2 tape cartridges was launched[6]
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[7] 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,[8] giving Sony technology for current automatic store and retrieval systems, the foundation of the modular 7U rack-mount based system PetaSite uses today.
In 2020, Sony released the third generation system,[9] with new 5.5TB 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
Product
Introduced
Gen.
Capacity (GB)
Write Type
ODC300R
2013
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 LTO, consists of reading/writing bays for data access and storage bays for non-active storage.
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 (20Gbit/s) with 19.5v DC power.
Software
Sony Optical Archive & PetaSite uses a content management software[10] simply called File Manager[11] currently in its second major revision "File Manager 2"
The commercial software suite is built around and uses open-source software primarily 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.[2] Generation 3 increased the cartridge capacity to 5.5TB, the read speed to 375MB/s and the write speed (with verification on) to 187.5MB/s.
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.[13]
Commercial Adoption PetaSite (Tape Based)
Sony PetaSite for the systems full 1998~2012 history before optical switch over.
In 1998 RAI 24, Italian broadcaster becomes the first western adopter of the Sony optical archive system using SAIT2 / 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 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 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.[3]
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[14]
In 2017 Ishikawa Television Broadcasting Co., Ltd. adopted the second generation of the PetaSite system for on site and off-site backups.[15]
In 2021 Montclair State University, alongside adopting Sony PTZ equipment adopted Sony's ODS-L30M PetaSite for on-site backup.[16]
In 2022 the VHS-decode project recommended ODA for at scale archival of analog tape media formats, preserving raw FM RF video/audio signals in FLAC compressed form for future software defined processing & playback.[17]
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)
Related Research Articles
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An optical disc is a flat, usually disc-shaped object that stores information in the form of physical variations on its surface that can be read with the aid of a beam of light. Optical discs can be reflective, where the light source and detector are on the same side of the disc, or transmissive, where light shines through the disc to be detected on the other side.
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HDCAM is a high-definition video digital recording videocassette version of Digital Betacam introduced in 1997 that uses an 8-bit discrete cosine transform (DCT) compressed 3:1:1 recording, in 1080i-compatible down-sampled resolution of 1440×1080, and adding 24p and 23.976 progressive segmented frame (PsF) modes to later models. The HDCAM codec uses rectangular pixels and as such the recorded 1440×1080 content is upsampled to 1920×1080 on playback. The recorded video bit rate is 144 Mbit/s. Audio is also similar, with four channels of AES3 20-bit, 48 kHz digital audio. Like Betacam, HDCAM tapes were produced in small and large cassette sizes; the small cassette uses the same form factor as the original Betamax. The main competitor to HDCAM was the DVCPRO HD format offered by Panasonic, which uses a similar compression scheme and bit rates ranging from 40 Mbit/s to 100 Mbit/s depending on frame rate.
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Professional Disc (PFD) is a digital recording optical disc format introduced by Sony in 2003 primarily for XDCAM, its tapeless camcorder system. It was one of the first optical formats to utilize a blue laser, which allowed for a higher density of data to be stored on optical media compared to infrared laser technology used in the CD and red laser technology used in the DVD format.
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Archival Disc (AD) is the name of a discontinued trademark owned by Sony and Panasonic describing an optical disc storage medium designed for long-term digital storage. First announced on 10 March 2014 and introduced in the second quarter of 2015, the discs are intended to be able to withstand changes in temperature and humidity, in addition to dust and water, ensuring that the disc is readable for at least 50 years. The agreement between Sony and Panasonic to jointly develop the next generation optical media standard was first announced on 29 July 2013.
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