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Hitachi Deskstar 7K250
January 20, 2004 |
Description:Performance
High data transfer rate allows you to boot-up applications faster
Leading seek times means you can access your data faster
8MB buffer size for faster data processing
Capacity
Up to 250GB for greater storage capacity
Reliability
Leading low power for cooler system operation
Head load/unload
Optional low power mode
Internal thermal sensor
These features allow the Deskstar 7K250 to run cooler and with less power (especially in multi-drive systems), protects the disk during non-operation, reduces disk wear and improves data integrity
Acoustics
Low acoustic levels for quieter system operation (which is important for fan-less systems)
Optional low acoustics mode further reduces system noise
Features
Capacity - up to 250 GB
Rotational Speed - 7200 RPM
Interface standard - Serial ATA 1.5Gb/s (Serial) ATA Ultra 100 (Parallel)
Average seek time - 8.5 ms
8MB buffer option for super-fast access to data
Specifications
Interface: Serial ATA 1.5Gb/s
Capacity: 250/160/120/80
Sector size: 512 bytes
Recording zones: 30
Data heads: (physical) 6/4/3/2
Data disks: 3/2/2/1
Max. areal density: 62 Gbits/sq. inch
Max. recording density: (KBPI) 689
Performance
Data buffer: 8 MB
Rotational speed: 7,200 RPM
Latency average: 4.17ms
Media transfer rate: 757Mbits/sec max
Interface transfer rate: 150MB/sec max
Sustained data rate: 61.4 -29.7 MB/sec (zone 0-29)
Seek time
Average: 8.5/8.8 ms (1 disk)
Track to track: 1.1 ms
Full track: 15.1 ms
Acoustic
Idle: 3 Bels (3 disks)
Physical size
Height: (mm) 25.4
Width: (mm) 101.6
Depth: (mm) 146
Weight: (max. g) 640
Models
HDS722525VLSA80 (250GB)
HDS722516VLSA80 (160GB)
HDS722512VLSA80 (120GB)
HDS722580VLSA80 (80GB)
Environmental characteristics
Operating
Ambient temperature: 5° to 55° C
Relative humidity: (non-condensing) 8% to 90%
Max. wet bulb: (non-condensing) 29.4° C
Shock: (half sine wave, 2ms) 55G
Vibration: (random (RMS) 0.67G for horizontal, 0.56G for vertical
Non-operating
Ambient temperature: -40° to 65° C
Relative humidity: (non-condensing) 5% to 95%
Max. wet bulb: (non-condensing) 35° C
Shock: (half sine wave, 2ms) 350G (2/1 disks)
Vibration: (random (RMS) 1.04G rms (XYZ). ADVERTISEMENT
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