IBM TRAVELSTAR 3GN Reference Guide
Outstanding value, high capacity, and improved performance in
a 9.5 mm height hard disk drive for notebook computing
IBM Travelstar 3GN
Highlights
High capacity
An areal density of 3.1 Gbits/square inch
provides capacities of 3.2 and 2.1 GB to
help meet the demands of the data-
intensive applications required by
notebook users.
Improved performance
Faster data rates, improved RPM (4200),
and a 128 KB data buffer enhance
performance without increasing power
consumption. An Ultra DMA implementa-
tion boosts interface transfer rates to
33.3 MB/sec.
Superior power management
Enhanced Adaptive Battery Life
Extender 2.0 power management
technology includes Performance Idle,
Active Idle, and Low Power Idle modes. It
selects the appropriate mode to minimize
power usage and increase battery life.
Rugged design
The Travelstar 3GN extends the proven
Travelstar ruggedness to an industry-
leading 700 G/1 ms non-operating shock
rating and a 50 percent improvement in
operating shockto 150 G/2 msto
help increase reliability.
Integrated Lead Suspension
An innovative new technology, Integrated
Lead Suspension (ILS), reduces the
number of moving parts and helps
improve drive reliability.
Leading drive technology
With its high capacity, power manage-
ment, performance, and ruggedness in a
thin package, the Travelstar 3GN provides
outstanding value for portable computing.
At only 99 grams, the Travelstar 3GN is
the lightest 2 or 3 GB notebook disk drive
available, making it an ideal solution to
the increasing demand for value and ultra-
portable notebooks.
To provide this high level of performance,
the Travelstar 3GN empl oys proven IBM
technology. Magnetoresistive Extended
(MRX) advanced head technology
increases areal density, thereby reducing
the number of disks and heads required
to provide each capacity point. The MRX
head technology increases areal density
to 3.1 Gbits/square inch, and its pico slider
enables more disk sur face to be read.
IBMs proven head Load/Unload technol-
ogy enables the use of smooth disks,
allowing lower fly height that results in
higher areal density. No-ID sector
formatting also increases storage capacity
by eliminating the overhead caused by the
duplicate storage of each data sectors ID
field. The Partial Response Maximum
Likelihood (PRML) digital channel enables
higher areal densities, significan tly
contributing to the drives overall capacity
and performance. In addition, S.M.A.R.T.
(Self-Monitoring Analys is and Reporting
Technology) protocol support improves
data availability by alerting the system of
impending drive failure.
All of these innovative IBM technologies
enable the Travelstar 3GN to provide the
exceptional capacity, performance,
power management, shock resistance,
and reliability required by todays value
and ultra-por table notebooks.
IBM quality and service
The Travelstar 3GN is backed by a three-
year warranty and a wide range of
technical support and services, which
may include qualification support and
integration assistance. This comprehen-
sive support package helps ensure that
IBM customers can continue to develop
and manufacture high-quality, cost-
effective systems.
Travelstar 3GN 2.5-inch 3.2 GB ultra-low-
profile disk drive
Travelstar 3GN 2.5-inch 3.2 and 2.1 GB 9.5 mm height disk drives at a glance DYKA-23240/22160
Configuration Inte r f ac e ATA-3
Capa city 3.24/2.16 G B
S ect or size 512 By te s
Recording zones 8
User cylinders 8128
Data heads 4/3
Disks 2
Areal density (max) 3.12 Gbits/sq. in.
Recording density (max) 223.1 KBPI
Track density 14 KTPI
Performance Da ta b u ffe r 12 8 KB
Rotational speed 4200 RPM
Latency (average) 7.1 ms
Media transfer rate 93.5 to 56.2 Mbits/sec
Interface transfer rate (max. AT) 33.3 MB/sec Ultra DMA, Mode-2; 16.6 MB/sec PIO Mode-4
S ee k ti me ( typ ic al rea d)
Average 13 ms
Track-to-track 4 ms
Full-track 23 ms
Reliability Error rate (non-recoverable) < 1 per 1.0 E 13 bi ts tran sfe rred
Load/unload cycles 300,000
Power Power requirement +5VDC (±5%)
Di ssi pati on (t yp ic al)
4
Startup (max peak ) 4.7 W Performance id le (avg.) 1.85 W
Seek (average) 2.3 W Active idle (avg.) 0.85 W
Read (average) 2.0 W Low power (avg.) 0.65 W
Write (average ) 2.1 W Standby (avg.) 0.3 W
Power consumption efficiency50.0002 / 0.0003Watts/MB Sleep 0.1 W
Physical size Height 9.5 mm
Widt h 70 mm
Depth 100 mm
Weight (max) 99 g
Environmental characteristics Operating Non-operating
Ambient temp 5 to 55° C -40 to 65° C
Relative humidity 8 % to 90 % 5 % to 95 %
Maximum wet bulb 29.4° C 40° C
Shock (half sine wave) 150 G/2 ms 700 G/1 ms
Vibra tion (ra ndo m(RMS)) 0.67 G (5 to 500 Hz) 3.01 G (5 to 500 Hz)
(Swept sine) 1 G 0-P (5 to 500 Hz)
Warranty 3 years
1
1 GB = 1,000,000,000 Bytes; 1 MB = 1,000,000 Bytes
4
Dissipation is reduced by the Enhanced Adaptive Battery Life Extender
2
Upper 38 KB used for firmware3 With controlled power off
1
2
3
5
Idle power dissipation/format ted capacity
General product information for other IBM hard disk
drive products is available by calling 1 800 IBM-7777
and asking for Dept. Star 30 (outside of North
Am eri ca, c al l 1 416 3 83- 5161 or fax 1 90 5 316-473 3).
Information is also available via the Internet
(www. storage.ibm.com/oem) or fax.
You can contact IBMs TECHFAX syst em by dialing 1
415 855-4773 from a touch tone phone. (International
callers must call from a phone connected to a fax
machine.) Follow the voice prompts to receive a
TECH FAX dire ctor y.
Product description data represents design objectives
and is provided for co mpa rative purposes; actual
results may vary depending on a variety of factors.
Produ ct claims are true as of the date of the first
printing. This product data does not constitute a
warranty. Questions regarding IBM warranty terms or
the methodology used to derive this data should be
re ferre d to a n IB M re pres e nta tive. Da ta sub jec t t o
change without notice.
© International Business Machines Corporation 1997
Printed in the United States
10-97
All Rights Reser ved
The following are trademarks or registered trademarks
of the IBM Corporation in the United States, othe r
countries, or both: IBM, Enhanced Adaptive Battery
Life Extender, and No-ID.
Other product names are trademarks or registered
trademarks of their respective companies.
TECHFAX # 7085
IBM Storage Systems Division
5600 Cottle Road
San Jose, CA 95193
1 800 IBM-7777
www.ibm.com/storage
European Headquarters
(44) 01-705-561-871
Japan Sales Branch Office
(81) 466 45-1039
Tai wa n OEM Busi nes s Un it
(886) 72 5-9844
G225-6741-00
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