Hitachi 7K400 Specifications - Page 25
Drive characteristics
UPC - 000053412935
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4.0 Drive characteristics 4.1 Default logical drive parameters Table 1: Formatted capacity HDS724040KLAT20 / HDS724040KLSA80 Physical Layout Label capacity (GB) Bytes per sector Sectors per track Number of heads Number of disks Data sectors per cylinder Data cylinders per zone Logical layout1 Number of heads Number of Sectors per track Number of Cylinders2 Number of sectors Total logical data bytes 400 512 567-1170 10 5 5670-11700 1200 - 4900 16 63 16,383 781,422,768 400,088,457,216 Notes: 1. Number of cylinders: For drives with capacities greater than 8.45 GB the Identify Device information word 01 limits the number of cylinders to 16, 383 per the ATA specification. 2. Logical layout: Logical layout is an imaginary drive parameter (that is, the number of heads) which is used to access the drive from the system interface. The logical layout to Physical layout (that is, the actual Head and Sectors ) translation is done automatically in the drive. The default setting can be obtained by issuing an IDENTIFY DEVICE command. Deskstar 7K400 Hard Disk Drive specification 11