---
title: SCSICmd_REPORT_LUNS_Header
framework: IOKit
role: symbol
role_heading: Structure
platforms: [Mac Catalyst 13.0+, macOS 10.3+]
path: iokit/scsicmd_report_luns_header
---

# SCSICmd_REPORT_LUNS_Header

## Declaration

```occ
typedef struct SCSICmd_REPORT_LUNS_Header {
    ...
} SCSICmd_REPORT_LUNS_Header;
```

## Overview

Overview This structure defines the format of the data that is returned for the REPORT_LUNS command.

## Topics

### Instance Properties

- [LUN](iokit/scsicmd_report_luns_header/1477354-lun.md)
- [LUN_LIST_LENGTH](iokit/scsicmd_report_luns_header/1477382-lun_list_length.md)
- [RESERVED](iokit/scsicmd_report_luns_header/1477350-reserved.md)