Hitachi DYLA-28100, DYLA-26480 Reference Guide

Increased capacity and exceptional performance provide desktop equivalency for mobile computing solutions

IBM Travelstar 8GS

Highlights

Desktop equivalency

The highest available storage capacity of 8.1 and 6.4 GB and superior performance provide desktop equivalency in a premium notebook computer.

Advanced design

An advanced electro-mechanical design reduces disk spacing—five disks are stacked in only 17 mm—to provide an industry-leading capacity of 8.1 GB.

Performance leadership

An industry-leading media transfer rate (max.107.6 Mbits/sec), a 512 KB data buffer, 4900 RPM, and an Ultra DMA interface transfer rate of 33.3 MB/sec help meet demanding application requirements.

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.

Integrated Lead Suspension

An innovative new technology, Integrated Lead Suspension (ILS), reduces the number of moving parts and helps improve drive reliability.

Rugged design

Industry-leading17 mm shock ratings of 400 G/2 ms (non-operating) and 125 G/2 ms (operating) help increase reliability.

Leading drive technology

With its ability to quickly access large amounts of data with its performanceoptimized design and superior capacity of 8.1and 6.4 GB, the Travelstar 8GS provides outstanding performance on the go for premium notebook computing. TheTravelstar 8GS is ideally suited for the increased demands of integrated image, video, Internet/intranet, and multimedia applications in a mobile computing environment.The Travelstar 8GS provides enough capacity for users to load CD applications onto the drive and run them on the go.

To provide this high level of performance, the Travelstar 8GS employs 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 over 3 Gbits/square inch, and its pico slider enables more disk surface to be read.

IBM’s proven head Load/Unload technology 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 sector’s ID field.The Partial Response Maximum Likelihood (PRML) digital channel enables higher areal densities, significantly contributing to the drive’s overall capacity and performance. In addition, S.M.A.R.T. (Self-Monitoring Analysis 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 8GS to provide the exceptional capacity, performance, power management, shock resistance, and reliability required by today’s premium notebooks.

IBM quality and service

The Travelstar 8GS is backed by a threeyear warranty and a wide range of technical support and services, which may include qualification support and integration assistance. This comprehensive support package helps ensure that IBM customers can continue to develop and manufacture high-quality, costeffective systems.

Travelstar 8GS 2.5-inch 8.1 GB, 17 mm hard disk drive

Travelstar 8GS 2.5-inch 8.10 and 6.48 GB full-height disk drives at a glance DYLA-28100/26480

Configuration	Interface		ATA-3
	Capacity		8.10/6.48 GB1
	Sector size		512 Bytes
	Recording zones		8
	User cylinders		8320
	Data heads		10/8
	Disks		5/4
	Areal density (max)		3.09 Gbits/sq. in.
	Recording density (max)		221.0 KBPI
	Track density		14 KTPI
Performance	Databuffer		512 KB2
	Rotational speed		4900 RPM
	Latency (average)		6.1ms
	Media transfer rate		107.6 to 64.6 Mbits/sec
	Interface transfer rate		33.3MB/sec Ultra DMA,Mode-2;16.6MB/sec PIO,Mode-4
	Seek time (typical read)
	Average		12 ms
	Track-to-track		4 ms
	Full-track		23 ms
Reliability	Error rate (non-recoverable)		<1 per1.0 E13 bits transferred
	Load/unload cycles		300,0003
Power	Powerrequirement		+5VDC (±5%)
	Dissipation (typical)4
	Startup (max peak)		5.0W	Performance idle (avg.)	2.0 W
	Seek (avg.)		2.6W	Active idle (avg.)	1.3 W
	Read (avg.)		2.5 W	Low power idle (avg.)	0.85W
	Write (avg.)		2.7 W	Standby (avg.)	0.3W
				Sleep	0.1W
	Power consumption efficiency5		0.0001Watts/MB
Physical size	Height		17mm
	Width		70 mm
	Depth		100 mm
	Weight (max)		182 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)		125 G/2 ms	400 G/2 ms
	Vibration (random(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 1GB =1,000,000,000 Bytes;1 MB =1,000,000 Bytes		2 Upper 53 KB used for firmware		3 With controlled power off
4 Dissipation is reduced by the Enhanced Adaptive Battery Life Extender				5 Idle power dissipation/formatted capacity

General product information for other IBM hard disk drive products is available by calling1800 IBM-7777 and asking for Dept.Star 30 (outside of North America,call1416 383-5161or fax[phone]). Information is also available via the Internet (www.storage.ibm.com/oem) or fax.

You can contact IBM’sTECHFAX system by dialing1 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 TECHFAX directory.

Product description data represents design objectives and is provided for comparative purposes; actual results may vary depending on a variety of factors. Product 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 referred to an IBM representative. Data subject to change without notice.

© International Business Machines Corporation1997 Printed in the United States

10-97

All Rights Reserved

The following are trademarks or registered trademarks of the IBM Corporation in the United States,other countries,or both: IBM,EnhancedAdaptive Battery Life Extender,and No-ID.

Other product names are trademarks or registered trademarks of their respective companies.

TECHFAX # 7086

IBM Storage Systems Division 5600 Cottle Road

San Jose, CA 95193 1800 IBM-7777

www.ibm.com/storage

European Headquarters (44) 01-705-561-871

Japan Sales Branch Office (81) 466 45-1039

Taiwan OEM Business Unit [phone]

G225-6740-00