---
title: SBCModePageRigidDiskGeometry
framework: Kernel
role: symbol
role_heading: Type Alias
platforms: [macOS 10.3+]
path: kernel/sbcmodepagerigiddiskgeometry
---

# SBCModePageRigidDiskGeometry

## Declaration

```occ
typedef struct SBCModePageRigidDiskGeometry SBCModePageRigidDiskGeometry;
```

## Discussion

Discussion Rigid Disk Geometry Mode Page (PAGE CODE 0x04) format.

## Topics

### Instance Properties

- [DEVICE_STEP_RATE](kernel/sbcmodepagerigiddiskgeometry/1476392-device_step_rate.md)
- [LANDING_ZONE_CYLINDER](kernel/sbcmodepagerigiddiskgeometry/1476477-landing_zone_cylinder.md)
- [MEDIUM_ROTATION_RATE](kernel/sbcmodepagerigiddiskgeometry/1476354-medium_rotation_rate.md)
- [NUMBER_OF_CYLINDERS](kernel/sbcmodepagerigiddiskgeometry/1476301-number_of_cylinders.md)
- [NUMBER_OF_HEADS](kernel/sbcmodepagerigiddiskgeometry/1476454-number_of_heads.md)
- [RESERVED](kernel/sbcmodepagerigiddiskgeometry/1476460-reserved.md)
- [RESERVED1](kernel/sbcmodepagerigiddiskgeometry/1476539-reserved1.md)
- [ROTATIONAL_OFFSET](kernel/sbcmodepagerigiddiskgeometry/1476307-rotational_offset.md)
- [RPL](kernel/sbcmodepagerigiddiskgeometry/1476428-rpl.md)
- [STARTING_CYLINDER_REDUCED_WRITE_CURRENT](kernel/sbcmodepagerigiddiskgeometry/1476553-starting_cylinder_reduced_write_.md)
- [STARTING_CYLINDER_WRITE_PRECOMPENSATION](kernel/sbcmodepagerigiddiskgeometry/1476402-starting_cylinder_write_precompe.md)
- [header](kernel/sbcmodepagerigiddiskgeometry/1476360-header.md)