Hitachi 100GB 7200 RPM HTE721010G9SA00 User Manual

Travelstar E7K100 (Sreial ATA) Hard Disk Drive Specification

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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. 

Label capacity (GB)

100

80

60

Bytes per sector

512

512

512

Sectors per track

459-900

414-792

414-792

Number of heads

4

4

3

Number  of  disks

2

2

2

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

195,371,568

156,301,488

117,210,240

Total logical data bytes 

100,030,242,816

80,026,361,856

60,011,642,880

Rotational Speed [RPM]

7200

Data transfer rates (buffer to/from media) (Mbps)

267-629

Data transfer rates ULTRA DMA 100 (Mbyte/sec)

100

Recording density (Kbit/mm) (Max) 

30

                             (KBPI) (Max)

768

Track density        (Ktrack/mm)

5.00

                             (KTPI)

127

Areal density         (Gbit/sq-mm - Max)

126

                             (Gbit/sq-inch - Max)

81

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