The Cheetah 15K.5 is mainstream enterprise disc drive storage. It is the best price/performance, lowest cost of ownership, 3.5-inch disc drive, with the industry's highest 3.5" disc drive reliability. Features: 15K RPM spindle speed Delivers more I/O's per second and faster sustained transfer rates than 10K 3.5-inch drvies, enabling the same high performance to be met with fewer drives. Background Media Scan (BMS) Second generation Seagate-exclusive BMS proactively scans the media for potential defects during drive idle time. It enables incipient errors to be corrected before data is lost. Perpendicular Recording Perpendicular recording is fundamentally superior, enabling the highest areal density with 30 percent higher performance. Nonrecoverable Error Rate The nonrecoverable error rate has been improved by a factor of 10. Idle Read After Write (IRAW) Seagate-exclusive IRAW enhances data protection by verifying-during drive idle time-that data in the drive buffer was properly written. Specification:  Hard drive Data transfer rate 3 Gbit/s Component for Server/workstation Write seek time 3.9 ms Read seek time 3.4 ms Average latency 2 ms HDD number of heads 6 Mean time between failures (MTBF) 1600000 h HDD speed 15000 RPM HDD capacity 300 GB Features Type HDD Component for Server/workstation Interface SAS Write seek time 3.9 ms Read seek time 3.4 ms Average latency 2 ms HDD number of heads 6 Mean time between failures (MTBF) 1600000 h HDD speed 15000 RPM HDD capacity 300 GB Storage drive buffer size 16 MB Operational conditions Operating temperature (T-T) 5 - 55 °C Storage temperature (T-T) -40 - 70 °C Operating shock 60 G Non-operating shock 250 G Technical details Interface SAS Mean time between failures (MTBF) 1600000 h Track density 165 Gbits/inch2 Internal Yes Weight & dimensions Width 4.01" (101.8 mm) Weight 24.5 oz (694 g) Height 1.03" (26.1 mm) Depth 5.79" (147 mm) Other features Interface SAS Track density 165 Gbits/inch2 Internal Yes Data transfer rate 3 Gbit/s
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