Cheetah 15K.4 Mainstream enterprise disc drive storage The Best Price/Performance, Lowest Cost of Ownership Disc Drive 146, 73, and 36 Gbytes—15K RPM—Ultra320 SCSI, 2 Gbit/sec FC and Serial Attached SCSI (SAS) Key Advantages • 30 percent more IOPS and more than 20 percent faster response times than 3.5-inch 10K drives  Enables higher performance with fewer drives, reducing supporting infrastructure, maintenance and space needs, while increasing system reliability  Highest reliability in the industry—designed for “full duty cycle” applications  Reduces RAID rebuild times while minimizing reliability risks ®  Fastest, coolest, quietest and most reliable Cheetah 15K ever Best-Fit Applications All mainstream enterprise applications, such as:  E-mail  Business processing  Transaction processing  Decision support  Storage Area Networks (SAN)  Networked Attached Storage (NAS)  Internet and e-commerce Cheetah 15K.4 Mainstream enterprise disc drive storage Lowest Cost of Ownership 1 1 1  Cheetah 15K performance and reliability enable lower 146.8 GB 73.4 GB 36.7 GB Specifications TCO for a wide variety of enterprise applications. Model Number ST3146854LW/LC/FC/SS ST3733454LW/LC/FC/SS ST336754LW/LC/FC/SS  Cheetah 15K RPM and fast seek times deliver the Capacity fastest time-to-data, resulting in 30 percent more IOPS Formatted 512 Kbytes/Sector (Gbytes) 146.8 73.4 36.7 and more than 20 percent faster response times than Interface Ultra320 SCSI Ultra320 SCSI Ultra320 SCSI 3.5-inch 10K drives. External Transfer Rate (Mbytes/sec) 320 320 320  Cheetah 15K enables higher performance with fewer Interface 2 Gbit/sec FC 2 Gbit/sec FC 2 Gbit/sec FC External Transfer Rate (Mbytes/sec) 200 200 200 drives. Fewer drives reduce support infrastructure, Interface SAS SAS SAS physical space requirements and storage management External Transfer Rate (Mbytes/sec) 300 300 300 costs. Performance  Cheetah 15K drives have the highest field-proven Spindle Speed (RPM) 15K 15K 15K reliability in the industry and further increase system Average Latency (msec) 2.0 2.0 2.0 Seek Time reliability due to the need for fewer drives. Average Read/Write (msec) 3.5/4.0 3.5/4.0 3.5/4.0  This fourth-generation Cheetah 15K is the fastest, Track-to-Track Read/Write (msec) 0.2/0.4 0.2/0.4 0.2/0.4 coolest, quietest and most reliable ever. Transfer Rate Internal (Mbits/sec) 685 to 1142 685 to 1142 685 to 1142 Internal Formatted (Mbytes/sec) 87 to 143 87 to 143 87 to 143 Highest Reliability Sustained (Mbytes/sec) 58 to 96 58 to 96 58 to 96 Cache, Multisegmented (Mbytes) 8 8 8  Seagate-exclusive enhanced Error Correction Code Configuration/Organization better maintains performance throughout the life of the Discs 4 2 1 drive and reduces the probability of lost data. Heads 8 4 2 15 15 15  Background Media Scan, a Seagate exclusive feature, Nonrecoverable Read Errors per Bits Read 1 sector per 10 1 sector per 10 1 sector per 10 MTBF (hours), AFR 1,400,000/0.62% 1,400,000/0.62% 1,400,000/0.62% proactively scans the media for potential defects during Power Management drive idle time without using system bandwidth. It Typical (watts) SCSI 17.5 14.3 13.51 enables incipient errors to be corrected before data is Fibre Channel 19.36 17.08 15.27 lost. SAS 19.48 17 15.2  The Cheetah 15K.4 is designed and manufactured by Power Idle (watts) SCSI 12.0 9.5 8.04 Fibre Channel 13.7 11.4 9.8 the same teams that successfully delivered the past SAS 14.37 11.95 10.4 three award-winning generations of Cheetah 15K. Environmental Temperature, Operating (°C) 5 to 55 5 to 55 5 to 55 World-Class Technical Support Temperature, Nonoperating (°C) –40 to 70 –40 to 70 –40 to 70 Shock, Operating: 2 msec (Gs) 60 60 60  Certified, experienced support staff Shock, Nonoperating: 2 msec (Gs) 250 250 250  Rated “Above Average to Excellent” by 95 percent of Acoustics Idle (bels—sound power) 3.6 3.2 3.0 our customers Vibration, Operating: <400 Hz (Gs) 1.0 1.0 1.0 3.0 3.0 3.0 Vibration, Nonoperating: <400 Hz (Gs)  Support lines with the shortest wait times in the industry Physical  Individually archived case histories for quick reference 1.0/25.4 1.0/25.4 1.0/25.4 Height (in/mm) 4.0/101.6 4.0/101.6 4.0/101.6 Width (in/mm)  Web-based Q&A forum and autoreply e-mail 5.75/146.05 5.75/146.05 5.75/146.05 Depth (in/mm)  Seagate Design Service Centers (DSC) help companies 1.5/0.771 1.5/0.771 1.5/0.771 Weight (lb/kg) transform innovative ideas into viable products. Warranty Limited Warranty (years) 5 5 5 1 1 Gbyte = 1,000,000,000 bytes. For additional details go to cheetah.seagate.com www.seagate.com 1-800-732-4283 (1-800-SEAGATE) AMERICAS Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066, United States, 831-438-6550 ASIA/PACIFIC Seagate Technology International Ltd. 151 Lorong Chuan, New Tech Park #06-01, Singapore 556741, 65-6488-7498 EUROPE, MIDDLE EAST AND AFRICA Seagate Technology SAS 130-136, rue de Silly, 92773 Boulogne-Billancourt Cedex, France, 33 1-41 86 10 00 © 2004 Seagate Technology LLC. All rights reserved. Printed in USA. Seagate and Seagate Technology are registered trademarks of Seagate Technology LLC. Cheetah and the Wave logo are registered trademarks or trademarks of Seagate Technology LLC. Other product names are registered trademarks or trademarks of their owners. Seagate reserves the right to change, without notice, product offerings or specifications. Publication Number: 1566-002, November 2004