user manual

FFD 3.5" SCSI Flash Disk User Manual

45-SR-001-01-7L REV 4.0 12 of 22

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

Disk

Capacity

(MB)

Formatted Disk

Capacity

(# of blocks)

Cylinders Heads Sector/

Cylinder

Bytes/

Sector

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