uint32_t leafsize;
uint32_t stripesize;
uint32_t sys_chunk_array_size;
+ uint64_t chunk_root_generation;
uint8_t root_level;
uint8_t chunk_root_level;
uint8_t log_root_level;
uint32_t io_width;
uint32_t sector_size;
uint64_t type;
+ uint64_t generation;
uint32_t dev_group;
uint8_t seek_speed;
uint8_t bandwidth;
uint8_t uuid[16];
+ uint8_t fsid[16];
} PACKED dev_item;
uint8_t label[256];
} PACKED;