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# Disk Arbitration

Provides mechanisms to register and block disk mount or unmount events.

## Overview

For related documentation, see [Mac Technology Overview](https://developer.apple.com/library/archive/documentation/MacOSX/Conceptual/OSX_Technology_Overview/About/About.html#//apple_ref/doc/uid/TP40001067).

## Topics

### Reference

[DADisk.h](/documentation/DiskArbitration/dadisk-h)

[DADissenter.h](/documentation/DiskArbitration/dadissenter-h)

[DASession.h](/documentation/DiskArbitration/dasession-h)

[DiskArbitration.h](/documentation/DiskArbitration/diskarbitration-h)

Register for mount/unmount notifications, and block mount/unmount events.

[DiskArbitration Enumerations](/documentation/DiskArbitration/diskarbitration-enumerations)

[DiskArbitration Constants](/documentation/DiskArbitration/diskarbitration-constants)

[DiskArbitration Functions](/documentation/DiskArbitration/diskarbitration-functions)

[DiskArbitration Data Types](/documentation/DiskArbitration/diskarbitration-data-types)


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