Cheetah 15K.5 Ultra320 SCSI 73-GB Hard Drive
The Seagate Cheetah 15K.5 Ultra320 SCSI 73-GB enterprise hard drive offers an unrivaled combination of high performance, high reliability and best price for performance. Seagate Cheetah 15K.5 hard drives feature perpendicular recording technology for maximum capacity and reliability and are the first to break the 100-MB/s sustained transfer rate barrier. The Cheetah 15K.5 drive delivers higher throughput with fewer drives than conventional 10K RPM solutions. Background management functions improve media integrity, increase drive efficiency and reduce failuresallowing for the industrys highest field-proven reliability and price-for-performance value. The Cheetah 15K.5 hard drive offers lasting value, enabling systems to keep up with increasing performance needs over a longer period of time in enterprise environments where reliability and performance are critical.
Key Features and Benefits
- 16-MB cache
- Ultra320 SCSI 68-pin interface
- Perpendicular recording technology for maximum capacity
- Up to 125-MB/s sustained transfer rate
- 30 percent more IOPS than 10K 3.5-inch drives
- Reduced RAID rebuild times
- Highest reliability rating in the industry
- Lower total cost of ownership (TCO)
- 5-year warranty
Applications
- Workstations
- Midrange and high-end servers
- Direct attached (JBOD/RAID) storage
- Storage area networks (SAN)
- Network attached storage (NAS)
- High-performance computing (scientific/technical data)
- Data streaming, mining, visualization and analysis
- Online transaction processing (OLTP)
- Collaboration (groupware, email, e-learning, messaging)
| Specifications |
73.40GB |
| Model Number |
ST373455LW |
| Interface |
Ultra320 SCSI |
| PHYSICAL |
|
| Height (max) |
26.11 mm (1.028 inches) |
| Width (max) |
101.85 mm (4.010 inches) |
| Length (max) |
146.99 mm (5.787 inches) |
| Weight (typical) |
839 grams (1.85 pounds) |
| Cache |
16 MBytes |
| Capacity |
73.40GB |
| Areal density (avg) |
110000 Gbits/inch2 |
| Guaranteed Sectors |
286749488 |
| Number of pins on the I/O connector |
40 |
| PERFORMANCE |
|
| Spindle Speed |
15000 rpm |
| Average latency |
2.0 msec |
| Random read seek time |
3.50 msec |
| Random write seek time |
4.0 msec |
| RELIABILITY |
|
| MTBF |
1400000 hours |
| Annual Failure Rate |
0.62 |
| Power-on hours |
8760 hours |
| Unrecoverable read errors |
1 in 1016 |
| Recoverable read errors |
10 in 1012 |
| ENVIRONMENT |
|
| Temperature |
|
| Ambient operating temperature (min) |
5 degrees C |
| Ambient operating temperature (max) |
55 degrees C |
| Ambient nonoperating temperature (min) |
-40 degrees C |
| Ambient nonoperating temperature (max) |
70 degrees C |
| Maximum operating temperature change |
20 degrees C per hour |
| Maximum nonoperating temperature change |
20 degrees C per hour |
| Minimum operating case temperature |
5 degrees C |
| Maximum operating case temperature |
50 degrees C |
| Humidity |
|
| Minimum Relative humidity (operating) |
5 % |
| Maximum Relative humidity (operating) |
95 % |
| Minimum Relative humidity (nonoperating) |
5 % |
| Maximum Relative humidity (nonoperating) |
95 % |
| Maximum allowable humidity change |
20 % per hour |
| Altitude |
|
| Operating altitude (min) |
-305 meters |
| Operating altitude (min) |
-1000 feet |
| Operating altitude (max) |
3048 meters |
| Operating altitude (max) |
10000 feet |
| Nonoperating altitude (min) |
-305 meters |
| Nonoperating altitude (min) |
-1000 feet |
| Nonoperating altitude (max) |
12210 meters |
| Nonoperating altitude (max) |
40000 feet |
| Shock |
|
| Vibration |
|
| Operating Shock (max) |
60 Gs |
| Operating shock |
2 msec |
| Nonoperating Shock (max) |
250 Gs |
| Nonoperating shock |
2 msec |
| Operating vibration |
0.5 Gs |
| Operating vibration |
10 to 500 Hz |
| Nonoperating vibration |
2.0 Gs |
| Nonoperating vibration |
22 to 500 Hz Hz |
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