Table
Data Field | Description | |
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Mode Data Length | Length of the returned data | |
Medium Type | Always zero (0) | |
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Bit 7 - This bit is set if the drive is write protected | ||
Parameter | Bit 4 - This bit is always set to indicate that the drive supports cache memory. | |
Block Descriptor | Zero (0) if Block Descriptor (DBD) in MODE SENSE Command Descriptor Length sector is 0. | |
If DBD is 1, then the Block Descriptor Length is eight (8). | ||
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Number of Blocks | The value in this field specifies the number of logical blocks on the unit that are affected by the | |
| current MODE SELECT command. When this field = 0, the MODE SELECT parameters are put | |
| into effect for all logical blocks on the unit. The maximum value allowed is the total number of | |
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| is less than the maximum value will decrease the number of | |
| the amount specified. | |
Block Length | The value in this field specifies the length, in bytes, of each block. | |
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5.14.1Read-Only Mode Pages
Table
Table
Page Code (Sub Page) | Page Name | Reports the drive's | Size (bytes) | |
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03h | Format Device | Medium format | 24 | |
04h | Rigid Disk Geometry | Total cylinder head and | 24 | |
rotational speed | ||||
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5.14.2Format Device Page (03h)
The Format Drive Page (Table
Table
Byte |
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| Bit | 7 | 6 | 5 |
| 4 | 3 |
| 2 |
| 1 | 0 |
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| 0 |
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| PS | Rsvd |
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| Page Code (03h) |
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| 1 |
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| Page Length (16h) |
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2 | - | 3 |
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| Tracks Per Zone |
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4 | - | 5 |
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| Alternate Sectors/Zone |
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6 | - | 7 |
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| Alternate Tracks/Zone |
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8 | - | 9 |
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| Alternate Tracks/Logical Unit |
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10 | - | 11 |
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| Sectors/Track |
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12 | - | 13 |
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| Data Bytes/Physical Sector |
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14 | - | 15 |
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| Interleave |
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16 | - | 17 |
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| Track Skew Factor |
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18 | - | 19 |
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| Cylinder Skew Factor |
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20 |
| SSEC | HSEC | RMB |
| SURF |
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| Reserved |
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