Hitachi 7K250 Specifications - Page 28
Data cylinder, Spare cylinder
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UPC - 000004558972
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Table 3: Cylinder allocation 26 1,546 27 1,500 28 1,000 29 1,056 2,157 1,700 1,570 1,521 2,285 630 1,748 607 1,700 594 2,100 567 Physical cylinder is calculated from the starting data track of 0. It is not relevant to logical CHS. Depending on the capacity some of the inner zone cylinders are not allocated. Data cylinder This cylinder contains the user data which can be sent and retrieved via read/write commands and a spare area for reassigned data. Spare cylinder The spare cylinder is used by Hitachi Global Storage Technologies manufacturing and includes data sent from a defect location. Deskstar 7K250 Hard Disk Drive Specification 14
![](/manual_guide/products/hitachi-7k250-specifications-51f2e5f/28.png)
Deskstar 7K250 Hard Disk Drive Specification
14
Physical cylinder is calculated from the starting data track of 0. It is not relevant to logical CHS. Depending on the
capacity some of the inner zone cylinders are not allocated.
Data cylinder
This cylinder contains the user data which can be sent and retrieved via read/write commands and a spare area for
reassigned data.
Spare cylinder
The spare cylinder is used by Hitachi Global Storage Technologies manufacturing and includes data sent from a
defect location.
26
1,546
2,157
2,285
630
27
1,500
1,700
1,748
607
28
1,000
1,570
1,700
594
29
1,056
1,521
2,100
567
Table 3: Cylinder allocation