libnvme(9) API Manual libnvme(9)

# [NAME](#NAME)

enum nvme\_zns\_id\_ns\_zoc - Zone Operation Characteristics

# [SYNOPSIS](#SYNOPSIS)

enum nvme\_zns\_id\_ns\_zoc {  
**NVME\_ZNS\_ID\_NS\_ZOC\_VZC\_SHIFT** ,  
**NVME\_ZNS\_ID\_NS\_ZOC\_VZC\_MASK** ,  
**NVME\_ZNS\_ID\_NS\_ZOC\_ZAE\_SHIFT** ,  
**NVME\_ZNS\_ID\_NS\_ZOC\_ZAE\_MASK**

};

# [Constants](#Constants)

[NVME\_ZNS\_ID\_NS\_ZOC\_VZC\_SHIFT](#NVME_ZNS_ID_NS_ZOC_VZC_SHIFT)

Shift amount to get Variable Zone Capacity (VZC)

[NVME\_ZNS\_ID\_NS\_ZOC\_VZC\_MASK](#NVME_ZNS_ID_NS_ZOC_VZC_MASK)

Mask to get VZC

[NVME\_ZNS\_ID\_NS\_ZOC\_ZAE\_SHIFT](#NVME_ZNS_ID_NS_ZOC_ZAE_SHIFT)

Shift amount to get Zone Active Excursions (ZAE)

[NVME\_ZNS\_ID\_NS\_ZOC\_ZAE\_MASK](#NVME_ZNS_ID_NS_ZOC_ZAE_MASK)

Mask to get ZAE

enum nvme\_zns\_id\_ns\_zoc October 2026

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