![](/images/backgrounds/146247/146247-253122x1.png)
Table
Data Field | Description | |
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| |
Number of | The value in this field specifies the number of logical blocks on the disk to which the | |
density code and block length fields apply. A value of 0 in this field indicates that all of | ||
Blocks | ||
the remaining logical blocks on the disk have the medium characteristics specified. | ||
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Density Code | The Density Code field is unique for each device type. Direct access devices value is | |
zero. | ||
| ||
Block Length | The value in this field specifies the length in bytes of each logical block described by | |
the block descriptor. | ||
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