The Seagate® Cheetah® 15K drive delivers the highest capacity (up to 600 GB) of any mission-critical drive, reduces storage costs per GB and increases capacity per watt. Featuring PowerTrim™ technology, it dynamically optimizes drive power consumption. With the highest reliability rating, it's available with a 6-Gb/s SAS or 4-Gb/s FC interface. The highest-performing 3.5-inch drive, it reduces RAID rebuild times while minimizing reliability risks. Ideally suited for use in network storage applications, the Cheetah 15K drive is SAS 2.0-compliant and offers a Self-Encrypting Drive (SED) option providing government-grade security and instant secure erase for drives repurposed or returned for expired lease, repair or warranty.* *Requires TCG-compliant host or controller support Seagate® Cheetah® 15K Hard Drives What the experts are saying... Best performance, highest capacity drives with field-proven reliability for mission-critical 3.5-inch Tier 1 enterprise environments. Seagate Cheetah 15K drives offer the high performance, increased capacity, and optimized power consumption that enterprises require for demanding Tier 1 enterprise requirements, including: High-performance and mainstream enterprise servers and external storage- Storage area networks (SAN)- Network attached storage (NAS)- Direct attached storage (DAS) Why Choose the Seagate Cheetah 15K? Delivers unprecedented performance with a sustained data rate of up to 171MB/s-a 16 percent increase over the previous generationOffers the largest capacity of any 3.5-inch Tier 1 drive, with third-generation perpendicular recordingFeatures the industry’s highest reliability rating with an MTBF* of 1.6 million hoursIncludes Seagate PowerTrim™ technology, dynamically reducing power usage by 21 percent over the previous generationSupports 6GB/s SAS 2.0 and 4GB/s FCIncludes advanced read/write technology for an unrecoverable error rate of 1x10E16 and an annualized failure rate (AFR) of 0.55 percentTCG-compliant, Self-Encrypting Drive (SED) security option (SAS models only) eliminates the need to overwrite or physically destroy drives, enables safe return of drives for warranty or expired lease purposes, and allows organizations to securely repurpose or sell hard drives (not available in all countries) * Mean Time Between Failures “The Seagate Cheetah 15K.7 is a remarkable product, no matter if you see it as an enterprise tool or through the eyes of an enthusiast...” - TweakTown, November 2009 “In conclusion, the Seagate Cheetah 15K.7 SAS drive has demonstrated a dominance over existing Enterprise storage solutions and improved file transfer speeds at the same time as it saves electrical energy costs.” - Benchmark Reviews, October 2009 “So after taking a look at the Seagate Cheetah NS.2 and Cheetah 15K.7 I can say one thing without a doubt, these are two of the fastest hard drives we have seen. In fact the 15K.7 is just short of SSD performance with the reliability that only 53 years of development can give you.” - Lanoc Reviews, October 2009 “For users looking for the most advanced technology to create new premium systems, or those who are looking to extend the life of their existing systems, the Cheetah® 15K.7 delivers the low TCO and promise of easy integration for businesses of all sizes...” - Joe Cousins, vice president of marketing, Bell Microproducts Seagate® Enterprise Family Hard Drives Seagate® Constellation™ Enterprise-class 2.5-inch 7200 RPM nearline drive click here Seagate® Constellation™ ES Enterprise-class 3.5-inch 7200 RPM drive click here Seagate® Savvio® 10K Enterprise-class 2.5-inch 10,000- RPM drive click here Seagate® Savvio® 15k Enterprise-class 2.5-inch 15,000- RPM drive click here Seagate® Cheetah® 15k Enterprise-class 3.5-inch 15,000- RPM drive Cheetah 15K Drive Specifications Specifications 600 GB1 450 GB1 450 GB1 300 GB1 300 GB1 146 GB1 Model Number ST3600057SS ST3600957SS2 ST3600057FC ST3450857SS ST3450757SS2 ST3450857FC ST3450856SS/FC ST3300657SS ST3300557SS2 ST3300657FC ST3300656SS/FC ST3146356SS/FC Capacity Formatted 512 Bytes/Sector (GB) 600 450 450 300 300 146.3 External Transfer Rate (MB/s) 4Gb/s Fibre Channel 400 400 400 400 400 400 3Gb/s Serial Attached SCSI - - 300 - 300 300 6Gb/s Serial Attached SCSI 600 600 - 600 - - Performance Spindle Speed (RPM) 15K 15K 15K 15K 15K 15K Average Latency (ms) 2.0 2.0 2.0 2.0 2.0 2.0 Seek Time Average Read/Write (ms) 3.4/3.9 3.4/3.9 3.4/3.9 3.4/3.9 3.4/3.9 3.4/3.9 Track-to-Track Read/Write (ms) 0.2/0.4 0.2/0.4 0.2/0.4 0.2/0.4 0.2/0.4 0.2/0.4 Internal Transfer Rate, Outer to Inner Diameter(MB/s) 1450 to 2370 1450 to 2370 1051 to 2225 1450 to 2370 1051 to 2225 1051 to 2225 Sustained Transfer Rate, Outer to Inner Diameter(MB/s) 122 to 204 122 to 204 171 to 110 122 to 204 171 to 110 171 to 110 Cache, Multisegmented (MB) 16 16 16 16 16 16 Configuration/Reliability Disks 4 3 4 2 3 2 Heads 8 6 8 4 6 3 Annualized Failure Rate (AFR) 0.55% 0.55% 0.55% 0.55% 0.55% 0.55% Nonrecoverable Read Errors per Bits Read 1 per 10E16 1 per 10E16 1 per 10E16 1 per 10E16 1 per 10E16 1 per 10E16 Power Management Typical(W) Fibre Channel 16.321 15.17 17.0 13.8 16.1 15.0 SAS 16.35 14.6 17.3 12.92 15.8 14.4 Idle(W) Fibre Channel 11.61 10.26 12.0 8.98 11.2 9.7 SAS 11.68 10.1 12.4 8.74 11.1 9.6 Environmental Temperature (°C) Operating 5 to 55 5 to 55 5 to 55 5 to 55 5 to 55 5 to 55 Nonoperating -40 to 70 -40 to 70 -40 to 70 -40 to 70 -40 to 70 -40 to 70 Vibration Operating, Physical Height (in/mm) 1.0/25.4 1.0/25.4 1.0/25.4 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 4.0/101.6 4.0/101.6 4.0/101.6 Depth (in/mm) 5.76/146.52 5.76/146.52 5.75/146.05 5.76/146.52 5.75/146.05 5.75/146.05 Weight (lb/kg) 1.51/0.686 1.49/0.676 1.56/0.709 1.48/0.671 1.53/0.694 1.49/0.674 Limited Warranty (years) 5 5 5 5 5 5 1 One gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes when referring to hard drive capacity. 2 Self-Encrypting Drive model; requires TCG-compliant host or controller support. Seagate is thinking green. “Seagate had already begun demanding 'full materials disclosure' of its suppliers, requiring them to report all the chemicals present in their products, when Apple came knocking with its new orders in 2007.” - Peter Burrows, BusinessWeek