View
3
Download
0
Category
Preview:
Citation preview
Professional Disc for DATA
Blue Laser Recording Technology for High-Density Archival Storage
Michael HallSony Electronics Inc, 1 Overlook Dr, Bldg B-6, Amherst NH 03031-2800
Phone: +1-603-672-5483, FAX: +1-603-672-5495e-mail: mike.hall@am.sony.com
Presented at the THIC Meeting at the Raytheon ITS Auditorium 1616 McCormick Drive, Upper Marlboro MD 20774-5301
October 26-27, 2004
Professional Disc for DATA
Blue Laser Recording Technology for Blue Laser Recording Technology for HighHigh--Density Archival StorageDensity Archival Storage
THIC meeting October 26th-27th
Mike HallSony Electronics
Business Development ManagerComponent Solution Business Division
Hiroyuki TakemotoSony Electronics
Marketing ManagerMedia Recording Division
Professional Disc for DATA
Presentation Outline
Optical Storage RevolutionLong-Term Archive Best PracticesProfessional Disc for DATATechnology OverviewOSTA and GIPWoG organizationsQ&A Anytime!
Professional Disc for DATA
The Optical Storage Revolution
Many companies are supporting 120mm blue laser technology120mm recordable media consumption exceeds 15 billion a year
Blu-ray Specifications2 hrs digital HD video13 hrs standard broadcast405nm (blue-violet laser)0.85 NA lensPhase change recording 120mm CD/DVD size discSingle sided, single layer Protective disc cartridge
Blu-ray Alliance CompaniesDellHitachi, Ltd.HPLG Electronics Inc.Matsushita Electric Ind. Co., Ltd. Pioneer CorporationRoyal Philips ElectronicsSamsung Electronics Sharp CorporationSony CorporationThomson Multimedia
Professional Disc for DATA
Sony’s Blue Laser Products
Hom
e AV
Hom
e AV
Blu-ray set-top video recorder for home consumer market.
Broadcast
Broadcast
Sony Professional cameras and videoediting products
Pro
Pro
Data Storage
Data Storage
Professional datastorage productsfor IT
Blu-ray Disc Professional Disc Professional Disc for DATA
PCPCConsum
erC
onsumer
PC Blu-ray
BD-IT
Professional Disc for DATA
Long-Term Archiving Best PracticesOptical - The predominate technology over the past 2 decades for long term archive and regulatory industry compliance.MO and CD/DVD have demonstrated over 15 years of information continuity, investment protection, and are still viable choices for new long term archive applications.Serial ATA (SATA) RAID popularity is causing records that shouldbe archived to remain on disk. The Consequences:
Requires investment in additional backup hardware and software to manage growing backup overheadRAID provides redundancy, but 2 drive failures = catastrophe.Some users actually purchase a second SATA RAID to be safe
Technology savvy SATA RAID companies will not use drives from the same manufacturing lot to avoid dual drive failures in the RAID.
What do you do when you can not get a replacement drive in a fewyears to replace the failed units….? Migrate your data.
Tape has appealing price, but the incremental cost to maintain tape archives should be taken into consideration. Proper archive implementation can avoid these issues and risks
Professional Disc for DATA
Maintaining Trustworthy Records and Avoiding Costly Migration
“Using a storage medium that reduces or eliminates the need for migration of the records during the full retention period reduces the risk that the integrity of the electronic records would be challenged”
Source: Cohasset Associates white paper, Trustworthy Storage andManagement of Electronic RecordsReducing or eliminating migration provides considerable cost savings.
Optical’s media removability and compatibility to future generation drives allows the “original” information to stay intact, maintaining the accuracy, reliability, and trustworthiness of electronic records.Optical has become the defacto “gold standard” for WORM and long term archive requirements
Even RAID companies acknowledge the “authenticity” attributes of optical WORM as a comparison benchmark
Professional Disc for DATA
Optimum Archive Storage Solution
RAID >>>>> OPTICAL STORAGEand/or TAPE
Professional Disc for DATA
Blue Laser Technology IntroductionThe Professional Disc for DATA developed by Sony supports recording, rewriting, and playing back of up to 23.3 gigabytes (GB) of data on a single-sided, single-layer 120mm disc, the size of a standard DVDs. What makes this possible is the use blue-violet laser technology.
1.Short wavelength 405nm (Blue-Violet laser) 2.Field lens with a numerical aperture (NA) of 0.85
These optical parameters make the spot size of laser beam small,which is a requirement for accurate tracking on the Professional Disc for DATA.
Disc Substrate(1.1mm)Recording layerCover layer (0.1mm)
Disc total thickness 1.2mm
Minimum mark size 0.16um
Track pitch 0.32um
Groove
LandNA:0.85
Wavelength:405nm
Protect layer(0.15um)
Professional Disc for DATA
Recording Mark of Phase Change
DVD±RWCD-RWWavelength : 650 nm
NA : 0.60Wavelength : 405 nm
NA : 0.85
Wavelength : 780 nmNA : 0.45
Cover Layer 1.2mm
Cover Layer 0.6mm
* Cover Layer 0.1mm
ProDATA
1μm 1μm 1μm
650MB 4.7GB 23.3GB* 0.1mm cover layer reduces spherical aberration, improves tilt tolerance
Professional Disc for DATA
Professional Disc for DATA SpecificationsSpecificationsCapacity:Capacity: 23.3GB (Single sided)23.3GB (Single sided)Transfer Rate Transfer Rate
Write:Write: 9.0 MB/s9.0 MB/sRead:Read: 11 MB/s11 MB/s
Sector Size:Sector Size: 2,048Bytes & 512Bytes emulation 2,048Bytes & 512Bytes emulation Seek Time:Seek Time: 110 msec(1/3 stroke) CAV110 msec(1/3 stroke) CAV
280 msec(1/3 stroke) CLV280 msec(1/3 stroke) CLVLoad/Eject TimeLoad/Eject Time 6.0/3.5 sec6.0/3.5 secBuffer MemoryBuffer Memory 16MB16MBRewrite CyclesRewrite Cycles 10,000 (Direct Overwrite Technology)10,000 (Direct Overwrite Technology)Read CyclesRead Cycles 1,000,0001,000,000MSBF:MSBF: 300,000 Swaps300,000 SwapsMTBF:MTBF: 100,000 POH100,000 POHPower Consumption:Power Consumption: 14W14WI/F: I/F: SCSI LVD160 and USB 2.0SCSI LVD160 and USB 2.0Media:Media: WORM and RewritableWORM and RewritableEstimated Archival LifeEstimated Archival Life 50 years50 years
Professional Disc for DATA
First 120mm Blue Laser Optical Peripheral for Data Storagefor Data Storage
Professional Disc for DATA
Phase Change Principle (Recording)Recoding layer temperature
Melting point(~600℃)
Crystallization point(~400℃)
Higher Power
Inte
rnal
En
ergy
leve
l
DiscDisc
LaserLaser
Change to Change to CrystallineCrystalline
Substrate
Change to Change to amorphousamorphousPlaybackPlayback
Cover Layer
Low Power
Write Power(~6mW)
Erase Power(~3mW)
Read Power(~0.3mW)Recoding
mark
Crystalline phase
With a mediumWith a medium--power, the recording materialpower, the recording materialheats and cools more graduallyheats and cools more gradually
When heated by a highWhen heated by a high--power laser beam, power laser beam, the recording material melts and rapidly cools.the recording material melts and rapidly cools.
Amorphous phase
Lase
r po
wer
High Power
Amorphous
Crystalline
Professional Disc for DATA
Phase Change Principle (Playback)Crystalline Amorphous
A low-power laser is used for playback. The amount of reflected light depends on the status (amorphous or crystalline) of the recording material. This is detected by an optical sensor.
Phase change
High reflection coefficient
Low reflectioncoefficient Recording layer
structure
Dielectric layer
Dielectric layer
Reflective layerReflective layer
Recording layer(Phase change material)
Playback signal
Professional Disc for DATA
Extremely Accurate Groove MoldingWobble Groove :Address information is put in disc by making groove meander
Track Pitch 320nm Track Pitch 740nm
Track Pitch & Accuracy 320±5nm
cf. (DVD+RW ; 740±20nm)
【Accurate molding system 】
【Accurate laser cutting system】
Deep UV Laser (λ=266nm) Cutting System
Professional Disc for DATAStamper
Stamper
Substrate resin
Disc substrate
【Professional Disc for DATA 】 【DVD+RW Format】
Professional Disc for DATA
Cover Layer Uniformity
∝∝
33NA NA ・・ Thickness
λ
Thickness distribution
λ : 405 nm
Cover layer0.1mmNA : 0.85
Coma Coma aberrationaberration
9596979899
100101102103104105
20 30 40 50 60Disc Radius [mm]
Cov
er L
ayer
th
ickn
ess
[um
]
Real ability of cover layer thickness
±0.5um
Professional Disc for DATA
Robust Disc Substrate
time
Sudden change temperature and humidity
Tilt(
The
incl
inat
ion
of th
e di
sc)
[°] [°]Maximum variation volume
25℃90% -> 25℃45%
0
0.1
0.2
0.3
Current resin(CD,DVD)Sony ProfessionalDisc for DATA
Maximum variation volume20℃50% -> 55℃10%
0
0.1
0.2
0.3
Current resin(CD,DVD)Sony ProfessionalDisc for DATA
Hygroscopic
0.05
0.1
0.15
0.2
0.25
Current resin(CD,DVD)Sony Professional Discfor DATA
Professional Disc for DATA
Accurate Recording Layer
Ar+
Ar+
Ar+
e- e- e-
Ar+ Ar+Ar+
Ar
Ar Gas
Cathode
Target
Substrateplasma
Substrate
Target
Cathode
Dielectric layer
Recodinglayer
Dielectric layer
Reflectivelayer
The material which clashes ions to the target and which is expelled is made to accumulate on the disc substrate.
SputterSputter
Accurate recording layer thickness
± 1nm
Professional Disc for DATA
Excellent Overwrite Durability
1,000回 10,000回RFsignal
Error rate
1.E-07
1.E-06
1.E-05
1.E-04
1.E-03
1.E-02
0 1 10 100 1000 10000Overwrite Cycles
chan
nel b
it er
ror r
ate
bER
1st cycle 1000 cycles 10000 cycles
Erase/write/read cycles (times)≧10000@23℃50%RH
Error Correction Criteria
Professional Disc for DATA
Read Cycle Stability
Drive read power
Read cycle acceleration test
1.E+01
1.E+02
1.E+03
1.E+04
1.E+05
1.E+06
1.E+07
1.E+08
1.E+09
1.E+10
1/ReadPower
Rea
d cy
cle
Error rate (continuous read)
1.E-07
1.E-06
1.E-05
1.E-04
1.E-03
1.E-02
1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06
Read cycle
chan
nel-b
it er
ror r
ate
bER
Error Correction Criteria
Read cycles (times) ≧1,000,000
Professional Disc for DATA
Media Life Acceleration Test
80℃85%
70℃85%
Erro
r rat
e
60℃85%
TimeA B C
Criteria (Symbol 4.2*10-3)
Estim
ated
life
AB
C
a reciprocal of temperature80℃ 70℃ 60℃ 23℃
(room)
Humidity85%
Humidity50%
approximate linear line means “ Arrhenius equation:Ln(tc) = Ln(A) + (⊿H/k)×(1/T)”.
“end-of-life” Estimated life“end-of life” are measured in three conditions.1)60℃85%RH2)70℃85%RH3)80℃85%RHTemperature is made a parameter.
Professional Disc for DATA
Estimated LifeEstimated life acceleration test
(an interim report )
1.E+02
1.E+03
1.E+04
1.E+05
1.E+06
1.E+07
0.0028 0.0029 0.003 0.0031 0.0032 0.0033 0.00341/T(1/K)
Life
End
Tim
e(h)
60℃
70℃
80℃
23℃
50 years
a reciprocal of humidity
Estimated life ≧50years@23℃50%RH
*This graph is preliminary report. The storage test is being continued
Professional Disc for DATA
Cartridge Structure
Inner rotor
Shutter
120mm Disc
Upper shell
Lower shell
Professional Disc for DATA
ProDATA Library SupportCartridge Media Library Cartridge Media Library and Bare Media Libraryand Bare Media Library
Rack mount
4 square ft. floor space
Professional Disc for DATA
250 Slot3-6 Drives 750 Slot
3-12 Drives 1450 Slot3-24 Drives
5.8TB
17.45TB
33.80TB
= Low cost per MB!
Bare media libraries
Professional Disc for DATA
Optical Storage Technology AssociationOSTA is an international trade association represented by a number of companies, agencies, and institutions supporting the use of recordable optical technologies and products. Recent symposium paneled by the following:Recent symposium paneled by the following:
National Archives National Archives U.S. Geological SurveyU.S. Geological SurveyVERITAS SoftwareVERITAS SoftwareJohns Hopkins Applied Physics LabNIST
TopicsTopics-- ““ Why Optical Makes Sense for ArchiveWhy Optical Makes Sense for Archive”” and and ““ How Optical Meets Archive and Compliance StandardsHow Optical Meets Archive and Compliance Standards””
www.osta.org
Professional Disc for DATA
GIPWoGGIPWoG mission: mission: To provide government agencies with information to make informedTo provide government agencies with information to make informed decisions decisions for using optical storage technologies in digital data storage ofor using optical storage technologies in digital data storage or preservation r preservation strategies.strategies.
Participating Agencies:Participating Agencies:DoDDoD, GPO, GSA, Library of Congress, NARA, NASA, NIMA, NIST U.S. Ce, GPO, GSA, Library of Congress, NARA, NASA, NIMA, NIST U.S. Census nsus Bureau, U.S., Courts USGSBureau, U.S., Courts USGS
GIPWoGGIPWoG GoalsGoalsAct as a liaison/meeting place between government users and the Act as a liaison/meeting place between government users and the optical optical storage technology industry. storage technology industry. Inform government users of the current stateInform government users of the current state--ofof--thethe--art in optical storage art in optical storage technology. technology. Highlight optical storage technology research relevant to governHighlight optical storage technology research relevant to government users. ment users. Serve as a forum for government users to share digital data presServe as a forum for government users to share digital data preservation issues ervation issues and strategies. and strategies.
http://www.itl.nist.gov/div895/gipwg/index.html
Professional Disc for DATA
Thank you!Thank you!
mike.hall@am.sony.commike.hall@am.sony.com+1+1--603603--557557--20322032
www.sony.com/bluelaserwww.sony.com/bluelaserwww.sony.net/prodata
Recommended