Hitachi 7K250 - Deskstar - Hard Drive User Manual

Deskstar 7K250 Hard Disk Drive Specification
11
4.0 Drive characteristics
4.1 Default logical drive parameters
Table 1: Formatted capacities
HDS722540VLAT20 HDS722580VLAT20 HDS722512VLAT20
HDS722512VLAT80
Physical Layout
Label capacity (GB) 40 80 120
Bytes per sector 512 512 512
Sectors per track 567-1170 567-1170 567-1170
Number of heads 1 2 3
Number of disks 1 1 2
Data sectors per cylinder 567-1170 1134-2340 1701-3510
Data cylinders per zone
1444-4501 (90KTPI)
1000-6846 (87KTPI)
1444-4501 (90KTPI)
1000-6846 (87KTPI)
1444-4501
Logical layout
1
Number of heads 16 16 16
Number of Sectors per track 63 63 63
Number of Cylinders
2
16,383 16,383 16,383
Number of sectors 80,418,240 160,836,480 241,254,720
Total logical data bytes 41,174,138,880 82,348,277,760 123,522,416,640
HDS722516VLAT20
HDS722516VLAT80
HDS722525VLAT80
Physical Layout
Label capacity (GB) 160 250
Bytes per sector 512 512
Sectors per track 567-1170 567-1170
Number of heads 4 6
Number of disks 2 3
Data sectors per cylinder 2268-4680 3402-7020
Data cylinders per zone 1444-4501 1500-5000
Logical layout
1
Number of heads 16 16
Number of Sectors per track 63 63
Number of Cylinders
2
16,383 16,383
Number of sectors 321,672,960 488,397,168
Total logical data bytes 164,696,555,520 250,059,350,016

Hitachi 7K250 - Deskstar - Hard Drive Specifications

General

Capacity	250 GB
Form Factor	3.5 inch
RPM	7200
Cache	8 MB
Average Seek Time	8.5 ms