Seagate ST3450856SS User Manual
Cheetah® 15K.6
Highest capacity and reliability
in mission-critical storage
Data Sheet
450, 300 and 146 GB • 15K RPM • 3-Gb/s Serial
Attached SCSI (SAS) and 4-Gb/s FC
Key Advantages
•
Second-generation perpendicular recording delivers up to 450-GB
capacity
•
Unprecedented performance with a 30 per cent increase in sustained
data rate of up to 171 MB/s
•
Industry’s highest 3.5-inch drive reliability at 1.6 million hours MTBF
•
Seagate proprietary PowerTrim™ technology provides a 62 per cent
improvement in GBs/watt at idle
•
Advanced read/write technology delivers non-recoverable error rate
of 1x1016
•
Available in FC or SAS interfaces
Best-fit Applications
All mainstream enterprise applications, such as:
•
Email
•
Business processing
•
Transaction processing
•
Decision support
•
Storage area networks
•
Networked attached storage
•
Internet and e-commerce
www.seagate.com
00-800-6890-8282
Cheetah® 15K.6
Highest capacity and reliability in mission-critical storage
AMERI CAS Seaga te Technolog y LLC 920 Di sc Drive , Scotts Va lley, Calif ornia 9 5066, U nited St ates, +1 831 4 38 6550
ASIA /PACIFIC S eagate Tech nology I nterna tional Lt d. 7000 An g Mo Kio Aven ue 5, Sing apore 56 9877, +65 6 485 388 8
EUROPE, M IDDLE E AST AND AF RICA Seag ate Technolo gy SAS 130-136 , rue de Sil ly, 92773 Bou logne -Billa ncour t Cedex, Fr ance +3 3 1 41 86 10 00
Copyrig ht © 2008 Seaga te Technol ogy LLC. All rights rese rved. Printed in USA . Seagate, Seagate Techn ology and the Wave logo are re gistered tradem arks of Seagate Technolo gy LLC in the United States a nd/or other coun tries.
Cheet ah and PowerTrim are either tradem arks or regi stered trad emarks of Se agate Technolo gy LLC or one of i ts affiliate d companie s in the Un ited States a nd/or othe r countrie s. All ot her tra demar ks or reg istere d trademar ks
are th e proper ty of thei r resp ectiv e owner s. When re ferri ng to hard d rive ca pacity, one gigab yte, or GB, equal s one billi on bytes a nd one tera byte, or TB , equals o ne tril lion byte s. Your co mputer’s op erating s ystem m ay use
a diff erent s tanda rd of mea sureme nt and repor t a lower cap acity. In a ddition, so me of the liste d capacity i s used for for matting an d other funct ions, and th us will n ot be avai lable fo r data storag e. Seagate re serves the right to
change , without no tice, product of ferings or spe cifications. DS164 5.2-0806GB, J une 2008
Lowest Cost of Ownership
•
Sixth-generation Seagate® Cheetah 15K drive is the
fastest, highest capacity and most reliable ever
•
Cheetah 15K.6 drive performance and reliability enable
lower TCO for enterprise applications
•
Lower watts /GB ratio helps achieve reduced
power and cooling costs while optimising capacity
requirements
•
Higher per formance with fewer drives — reducing
support infrastructure, physical space requirements
and storage management costs
•
The highest reliability of any 3.5-inch drive, with
increased system reliability due to the need for
fewer drives
MTBF Improvement
•
Seagate continues to focus on reliability and data
protection MTBF is increased to 1.6 million hours
•
Seagate-exclusive enhanced Error Correction Code
better maintains performance throughout the life of
the drive and reduces the probability of lost data
•
The se cond generation of Seagate-exclusive
Background Media Scan proactively scans the media
for potential defects during drive idle time, enabling
incipient errors to be corrected before data is lost
•
Our new Quick and Robust Download feature loads
new firmware in less than two seconds and built-in
protection ensures no cor ruption in the event of
a power failure during firmware switch
Seagate Global Customer Support
•
Get pre-sales and technical support
at support.seagate.com
•
Visit our knowledge base for answers to common
support questions
•
Find documentation for current and legacy drives
•
Use our online troubleshooting and diagnostic tools
Specifications
450 GB
1
300 GB
1
146 GB
1
Model Numb er
ST34 50856SS /FC ST33 0065 6SS/ FC ST3146 356SS /FC
Capaci ty
Format ted 512 Kbytes/ Sector (GB )
450 300 146.3
Exte rnal Transfe r Rate (MB /s)
Fibre Chan nel
3-Gb /s Serial Attac hed SCSI
400
300
400
300
400
300
Performance
Spindle Sp eed (RPM)
15,000 15,000 15,000
Average La tency (ms)
2.0 2.0 2.0
Seek Time
Average Read/Wr ite (ms )
Track-to-Track Read /Write (ms )
3.4/ 3.9
0.2/ 0.4
3.4/ 3.9
0.2/ 0.4
3.4/ 3.9
0.2/ 0.4
Transfer Ra te
Interna l (Mb/ s)
Sustain ed (MB /s, 1000 x 1000)
1,051 to 2,225
171 to 110
1,051 to 2,225
171 to 110
1,051 to 2,225
171 to 110
Cache, Mul ti-segmented ( MB/s)
16 16 16
Config uration /Or ganisa tion
Discs
4 3 2
Heads
8 6 3
Non-re coverable Read Error s per Bits Read
1 sector per 10
16
1 sector per 10
16
1 sector per 10
16
Reliabil ity Rating at Full 24x7 Opera tion
(AFR )
0.62% 0.62% 0.62 %
Power Man agement
Typical (W )
Fibre Chan nel
SAS
17.0
17.3
16.1
15.8
15.0
14.4
Power Idle ( W)
Fibre Chan nel
SAS
12.0
12.4
11.2
11.1
9.7
9.6
Enviro nmenta l
Temperatur e, Operating (°C )
5 to 55 5 to 55 5 to 55
Temperatur e, Non-operating (°C)
-40 to 70 -4 0 to 70 -40 to 70
Shock, Operating : 2 ms (Gs)
60 60 6 0
Shock, Non-oper ating: 2 ms ( Gs)
250 250 250
Acoust ics Idle (b els — sound power )
3.6 3.6 3. 6
Vibrat ion, Opera ting: < 400 Hz (G s)
1.0 1.0 1.0
Vibrat ion, Non- operatin g: <40 0 Hz (Gs)
2.0 2.0 2.0
Physica l
Height ( in/mm )
1.0/25 .4 1.0/25 .4 1.0 /25.4
Width ( in/mm )
4.0/101.6 4.0/101.6 4.0/101.6
Depth (in/mm )
5.75/146 .05 5.75/146 .05 5.75/146 .05
Weight (lb/kg )
1.56/ 0.709 1.53/ 0.694 1.49/ 0.674
Warrant y
Limited Wa rranty ( years)
5 5 5
1
One gigaby te, or GB, equals one billio n bytes and one teraby te, or TB, equals one tri llion bytes when refe rring to hard drive capa city.
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