Drive Characteristics; Default Logical Drive Parameters; Figure 1. Formatted Capacity - Hitachi ic35l060avv207-0 - Deskstar 60 GB Hard Drive Specifications

4.0 Drive characteristics

This section describes the characteristics of the drive.

4.1 Default logical drive parameters

The default of the logical drive parameters in Identify Device data is as shown below.
Description
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
1
Logical Layout
Number of Heads
Number of Sectors/ Track
2
Number of Cylinders
Number of Sectors
Total Logical Data Bytes
Description
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
1
Logical Layout
Number of Heads
Number of Sectors/ Track
2
Number of Cylinders
Number of Sectors
Total Logical Data Bytes

Figure 1. Formatted capacity

Notes:
1 Number of cylinders: For drives with capacities greater an 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
IC35L030AVV207 IC35L060AVV207
30
512
536-1092 536-1092
1
1
536-1092 1072-2184
857-4481 857-4481
16
63
16,383
60,036,480 80,418,240
30,738,677,760 41,174,138,880
IC35L090AVV207
80
512
536-1092
3
2
1608-3276
857-4481
16
63
16,383
160,836,480
82,348,277,760
Deskstar 180GXP hard disk drive specifications
IC35L060AVV207
Optimized 40 GB
40 40
512 512
630-1008
2 2
1 1
1260-2016
1010-2838
16 16
63 63
16,383 16,383
80,418,240
41,174,138,880
IC35L120AVV207
120
512
536-1092
4
2
2144-4368
857-4481
16
63
16,383
241,254,720
123,522,416,640
9
IC35L060AVV207
60
512
536-1092
2
1
1072-2184
857-4481
16
63
16,383
120,103,200
61,492,838,400
IC35L180AVV207
180
512
536-1092
6
3
3216-6552
857-4481
16
63
16,383
361,882,080
185,283,624,960