Standard Setup, Continued
Entering Drive Parameters You can also enter the hard disk drive parameters. The drive parameters are:
Parameter | Description |
|
|
Type | The number for a drive with certain identification |
| parameters. |
|
|
Cylinders | The number of cylinders in the disk drive. |
|
|
Heads | The number of heads. |
|
|
Write | The actual physical size of a sector gets progressively |
Precompensation | smaller as the track diameter diminishes. Yet each |
| sector must still hold 512 bytes. Write |
| precompensation circuitry on the hard disk |
| compensates for the physical difference in sector size |
| by boosting the write current for sectors on inner |
| tracks. This parameter is the track number on the disk |
| surface where write precompensation begins. |
|
|
Landing Zone | This number is the cylinder location where the heads |
| normally park when the system is shut down. |
|
|
Sectors | The number of sectors per track. MFM drives have 17 |
| sectors per track. RLL drives have 26 sectors per |
| track. ESDI drives have 34 sectors per track. SCSI |
| and IDE drives have even more sectors per track. |
|
|
Capacity | The formatted capacity of the drive is the number of |
| heads times the number of cylinders times the number |
| of sectors per track times 512 (bytes per sector). |
|
|
Cont’d
36Pegasus PCI Motherboard User’s Guide
