libnvme(9) API Manual libnvme(9) NAME enum nvme_cmd_format_mset - Format NVM - Metadata Settings SYNOPSIS enum nvme_cmd_format_mset { NVME_FORMAT_MSET_SEPARATE , NVME_FORMAT_MSET_EXTENDED }; Constants NVME_FORMAT_MSET_SEPARATE indicates that the metadata is transferred as part of a separate buffer. NVME_FORMAT_MSET_EXTENDED indicates that the metadata is transferred as part of an extended data LBA. October 2026 enum nvme_cmd_format_mset libnvme(9)