IBM DNES318350, DNES309170, DNEF-318350, DNEF-309170 Reference Guide

Greater performance and reliability providing high value for a wide range of performance desktops, workstations, and servers

IBM Ultrastar 18ES Hard Disk Drive

Highlights

Capacities of 18.2 GB and 9.1 GB and an areal density of 3.03 Gbits/square inch provide superior data storage for a one-inch high low-profile drive.

Average seek times as fast as

7.0 ms and sustained data rates of up to 20.2 MB/sec enable rapid data transfer.

The first implementation of giant magnetoresistive (GMR) head technology in server-class drives provides an unprecedented areal density of 3.67 GB per disk.

An efficient electronic design and a new integrated LSI chip enable the industry’s lowest power dissipation at 7200 RPM—improving reliability and easing integration.

Low-idle acoustics provide excellent environmental qualities.

Self-Monitoring Analysis and Reporting Technology (S.M.A.R.T.) and the exclusive IBM Drive Temperature Indicator Processor (Drive-TIP*) feature enhance data protection.

Leading drive technology

The Ultrastar 18ES is designed to provide a reliable, cost-effective storage solution for a wide range of workstations, high-performance desktop systems, and LAN and enterprise servers running Internet, intranet, CAD/CAM, multimedia, transaction processing, and data mining applications.

The Ultrastar 18ES achieves its high level of reliability, performance, and affordability by leveraging the experience of IBM in the development and implementation of advanced disk drive technologies. These include giant magnetoresistive (GMR) head technology, No-ID* sector formatting, the Partial Response Maximum Likelihood (PRML) digital data channel, and a new integrated LSI chip.

GMR head technology dramatically increases areal density and reduces the number of disks and heads required for a given capacity. No-ID sector formatting increases storage capacity by eliminating overhead caused by the duplicate storage of each data sector’s ID field onto the disk, which thereby creates more available disk space for data. PRML enables higher areal densities and significantly enhances the drive’s

overall performance by increasing media-to-buffer and buffer transfer rates.

IBM has developed an integrated LSI chip that incorporates a microcomputer, hard disk controller, and flash memory in a single chip. This design helps to increase performance, reduce power usage, and enhance reliability.

Advanced inter faces

Ultrastar 18ES drives support Ultra2 SCSI and Fibre Channel-Arbitrated Loop (FCAL) interfaces.

Ultrastar 18ES 3.5-inch 18.2 GB lowprofile SCSI hard disk drive

IBM Ultrastar 18ES 3.5-inch 18.2 GB and 9.1 GB hard disk drives DNES DNES DNEF

318350/309170 318350/309170 318350/309170

Configuration Interface Ultra SCSI Ultra2 SCSI FCAL

Fast, Fast & Wide Fast & Wide, SCA-2 Formatted capacity (512 by tes) 18.2/9.1 GB Number of disks 5/3 Number of heads 10/5 Areal density (maximum) 3.03 Gbits/sq. in. Recording density (maximum) 220 KBPI Recording zones 11 Track density 13,700 TPI Sector size 512 bytes (fixed), 512 to 524 bytes (variable 2-byte increment) Channel PRML Encoding method RLL (16/17) Head type Giant magnetoresistive (GMR)

Performance Data b uffer 2 MB

Rotational speed 7200 RPM Latency (average) 4.17 ms Media transfer rate 159 t o 244 Mbits/sec Interfac e transfer rate (SCSI max) 40 MB/sec

80 MB/sec

200 MB/sec

Sustained data rate 12.7 to 20.2 MB/sec Seek time (typical read)

Averag e 7.0 ms Track-to-track 0.8 ms Full track 13.0 ms

Reliability Nonrecoverable read errors <1 in 10E13 bits read

S.M. A.R. T., Dr ive -TIP Ye s

Power Startup current (max.) in Amps 0.75 (5V), 2.00 (12V) 0.75 (5V), 2.00 (12V) 1.35 (5V), 2.00 (12V)

Idle (average) 6.9/5.3 Watts 6.9/5.3 Watts 9.9/8.3 Watts Power consumption efficiency index 0.0004/0.0006 Watts/MB 0.0004/0.0006 W/MB 0.0006/0.0009 W/MB

Physical dimensions Height 25.4 mm

Width 101.6 mm Depth 146.0 mm Weight (max) 630 g

Environmental characteristics Operating Nonoperating

Temperature 5° to 55° C -40° to 65° C Relative humidity (noncondensing) 8% to 90% 5% to 95% Shock (half-sine wave) 10 G (11 ms), 65 G (2 ms) 75 G (11 ms), 175 G (2 ms)

1.04 G (2 to 200 Hz)

Upper 256 KB u sed for firmwa re

100 MB/sec per loop; dual loops

Vibration (random) 0.67 G (5 to 500 Hz)

0.56 G (5 to 500 Hz)

40 MB/sec represents Ultra Fast/Wide

Horizontal

80 MB/sec represents Ultra2 Fast/Wide

Ver t i ca l

Contact IBM

Internet and e-mail:

• www.ibm.com/harddrive

• drive@us.ibm.com

IBM TECHFAX document server:

• 408-256-5418 (requires touch-tone phone)

• Internation al callers must c all from a fax m achine

IBM hard disk drive product information:

• 1 888 IBM-5214 (United States)

• 507-253-4110 (outside of the United States)

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.

* IBM, Drive-TIP, No-ID, and Ultrastar are trademarks or registered trademarks of International Business Machines Corporation. Other product names are trademarks or registered trademarks of their respective companies.

References in this publication to IBM products, programs, or services do not imply that IBM intends to make them available in all countries in which IBM operates.

www.ibm.com/harddrive

IBM Storage Systems Division 5600 Cottle Road San Jose, CA 95193

TECHFAX # 7101

G225-6617-00