libnvme(9) API Manual libnvme(9)

# [NAME](#NAME)

enum nvme\_cmd\_format\_pi - Format NVM - Protection Information

# [SYNOPSIS](#SYNOPSIS)

enum nvme\_cmd\_format\_pi {  
**NVME\_FORMAT\_PI\_DISABLE** ,  
**NVME\_FORMAT\_PI\_TYPE1** ,  
**NVME\_FORMAT\_PI\_TYPE2** ,  
**NVME\_FORMAT\_PI\_TYPE3**

};

# [Constants](#Constants)

[NVME\_FORMAT\_PI\_DISABLE](#NVME_FORMAT_PI_DISABLE)

Protection information is not enabled.

[NVME\_FORMAT\_PI\_TYPE1](#NVME_FORMAT_PI_TYPE1)

Protection information is enabled, Type 1.

[NVME\_FORMAT\_PI\_TYPE2](#NVME_FORMAT_PI_TYPE2)

Protection information is enabled, Type 2.

[NVME\_FORMAT\_PI\_TYPE3](#NVME_FORMAT_PI_TYPE3)

Protection information is enabled, Type 3.

enum nvme\_cmd\_format\_pi October 2026

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Document: nvme_cmd_format_pi-libnvme3(2) from nvme-cli 3.2-r0 (Chainguard OS)
Source: https://github.com/linux-nvme/nvme-cli