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Hitachi Design Studios
Deskstar 7K250 hard disk drives specifications
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Deskstar 7K250 models Capacity (GB) RPM Data buffer Interface
Technical Library
HDS722540VLAT20 40 7200 2 MB Parallel-ATA
Warranty/RMA
HDS722580VLAT20 80 7200 2 MB Parallel-ATA
HDS722512VLAT20 120 7200 2 MB Parallel-ATA
HDS722512VLAT80 120 7200 8 MB Parallel-ATA
HDS722516VLAT20 160 7200 2 MB Parallel-ATA
HDS722516VLAT80 160 7200 8 MB Parallel-ATA
HDS722525VLAT80 1 7200 8 MB Parallel-ATA
250 or 200
HDS722580VLSA80 80 7200 8 MB Serial-ATA
HDS722512VLSA80 120 7200 8 MB Serial-ATA
HDS722516VLSA80 160 7200 8 MB Serial-ATA
HDS722525VLSA80 250 7200 8 MB Serial-ATA
Configuration Parallel-ATA Serial-ATA
Interface ATA Ultra-100 Serial ATA 1.5Gb/s
Capacity (GB)2 250/200/160/120/80/40 250/160/120/80
Sector size (bytes) 512 512
Recording zones 30 30
Data heads (physical) 6/6/4/3/2/1 6/4/3/2
Data disks 3/3/2/2/1/1 3/2/2/1
Max. areal density (Gbits/sq. inch) 62 62
Max. recording density (KBPI) 689 689
Track density (KTPI) 93.5 (3 disk) 93.5 (3 disk)
90 (2/1 disk) 90 (2/1 disk)
87(1 disk) 87 (1 disk)
Performance
Data buffer3 8 MB/2 MB 8 MB
(3D-8M,2D-2M/8M,1D-2M)
Rotational speed (rpm) 7,200 7,200
Latency average (ms) 4.17 4.17
Media transfer rate (max. Mbits/sec) 757 757
Interface transfer rate (max. MB/sec) 100 150
Sustained data rate (MB/sec) 61.4 -29.7 (zone 0-29) 61.4 -29.7 (zone 0-29)
Seek time (read, typical)4
Average (ms) 8.5/8.8 (1 disk) 8.5/8.8 (1 disk)
Track to track (ms) 1.1 1.1
Full track (ms) 15.1 15.1
Reliability
Error rate (non-recoverable) 1 in 10E14 1 in 10E14
Start/stops (at 40