Cheetah 15K.5 Ultra320 SCSI 300-GB Hard Drive
The Cheetah 15K.5 hard drive enables manageable tiered storage solutions without compromising performance or reliability. Cheetah 15K.5 drives deliver cost-effective solutions, allowing systems to keep up with increasing performance needs over a longer period of time.
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 |
300GB |
| Model Number |
ST3300655LW |
| 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 |
300GB |
| 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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