libnvme(9) API Manual libnvme(9)

# [NAME](#NAME)

enum nvme\_id\_ctrl\_nvm\_aocs - Admin Optional Command Support

# [SYNOPSIS](#SYNOPSIS)

enum nvme\_id\_ctrl\_nvm\_aocs {  
**NVME\_ID\_CTRL\_NVM\_AOCS\_RALBAS\_SHIFT** ,  
**NVME\_ID\_CTRL\_NVM\_AOCS\_RALBAS\_MASK**

};

# [Constants](#Constants)

[NVME\_ID\_CTRL\_NVM\_AOCS\_RALBAS\_SHIFT](#NVME_ID_CTRL_NVM_AOCS_RALBAS_SHIFT)

Shift amount to get Reporting Allocated LBA Supported (RALBAS)

[NVME\_ID\_CTRL\_NVM\_AOCS\_RALBAS\_MASK](#NVME_ID_CTRL_NVM_AOCS_RALBAS_MASK)

Mask to get RALBAS

enum nvme\_id\_ctrl\_nvm\_aocs October 2026

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