libnvme(9) API Manual libnvme(9)

# [NAME](#NAME)

enum nvme\_resv\_cptpl - Reservation Register - Change Persist Through Power Loss State

# [SYNOPSIS](#SYNOPSIS)

enum nvme\_resv\_cptpl {  
**NVME\_RESERVATION\_CPTPL\_NO\_CHANGE** ,  
**NVME\_RESERVATION\_CPTPL\_CLEAR** ,  
**NVME\_RESERVATION\_CPTPL\_PERSIST**

};

# [Constants](#Constants)

[NVME\_RESERVATION\_CPTPL\_NO\_CHANGE](#NVME_RESERVATION_CPTPL_NO_CHANGE)

No change to PTPL state

[NVME\_RESERVATION\_CPTPL\_CLEAR](#NVME_RESERVATION_CPTPL_CLEAR)

Reservations are released and registrants are cleared on a power on

[NVME\_RESERVATION\_CPTPL\_PERSIST](#NVME_RESERVATION_CPTPL_PERSIST)

Reservations and registrants persist across a power loss

enum nvme\_resv\_cptpl October 2026

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