FFD 3.5" SCSI Flash Disk User Manual
6 Drive Parameters
Most SCSI device drivers can automatically detect the total number of sectors on the FFD, using the READ CAPACITY command, and configure them accordingly. However, some older device drivers must obtain the drive geometry parameters manually. The physical drive parameters are only a convention, and have no effect on how data is stored on the FFD.
Table 5: Drive Parameters
| Unformatted | Formatted Disk | Cylinders | Heads | Sector/ | Bytes/ |
|
| Disk1 Capacity | Capacity |
|
| Cylinder | Sector |
|
| (MB) | (# of blocks) 2 |
|
|
|
|
|
| 32 | F1FFH | 3CH | 10H | 40H | 512 |
|
| 64 | 1E3FFH | 79H | 10H | 40H | 512 |
|
| 128 | 3CF7FH | F3H | 10H | 40H | 512 |
|
| 192 | 5BAFFH | 16EH | 10H | 40H | 512 |
|
| 256 | 7A67FH | 1E9H | 10H | 40H | 512 |
|
| 320 | 991FFH | 264H | 10H | 40H | 512 |
|
| 384 | B7D7FH | 2DFH | 10H | 40H | 512 |
|
| 448 | D68FFH | 35AH | 10H | 40H | 512 |
|
| 512 | F547FH | 3D5H | 10H | 40H | 512 |
|
| 576 | 113FFFH | 450H | 10H | 40H | 512 |
|
| 640 | 132B7FH | 4CAH | 10H | 40H | 512 |
|
| 704 | 1516FFH | 545H | 10H | 40H | 512 |
|
| 768 | 17027FH | 5COH | 10H | 40H | 512 |
|
| 832 | 18EDFFH | 63BH | 10H | 40H | 512 |
|
| 896 | 1AD97FH | 6B6H | 10H | 40H | 512 |
|
| 960 | 1CC4FFH | 731H | 10H | 40H | 512 |
|
| 1,024 | 1EB07FH | 7ACH | 10H | 40H | 512 |
|
| 1,088 | 209BFFH | 827H | 10H | 40H | 512 |
|
| 1,152 | 22877FH | 8A1H | 10H | 40H | 512 |
|
| 1,216 | 2472FFH | 91CH | 10H | 40H | 512 |
|
| 1,280 | 265E7FH | 997H | 10H | 40H | 512 |
|
| 1,344 | 2849FFH | A12H | 10H | 40H | 512 |
|
| 1,408 | 2A357FH | A8DH | 10H | 40H | 512 |
|
| 1,536 | 2E0C7FH | B83H | 10H | 40H | 512 |
|
| 1,664 | 31E3FFH | C79H | 10H | 40H | 512 |
|
| 1,792 | 35BAFFH | D6EH | 10H | 40H | 512 |
|
| 1,920 | 3991FFH | E64H | 10H | 40H | 512 |
|
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