Struct Superblock 

pub struct Superblock {

    pub magic: u32,
    pub major_version: u32,
    pub minor_version: u32,
    pub set_uuid: [u8; 16],
    pub set_name: String,
    pub ctime: u64,
    pub level: RaidLevel,
    pub layout: u32,
    pub size: u64,
    pub raid_disks: u32,
    pub dev_number: u32,
    pub events: u64,
    pub data_offset: u64,
    pub data_size: u64,
}

mdadm v1.2-compatible superblock.

Fields

magic: u32

Magic number (0xA92B4EFC).

major_version: u32

Major version (1).

minor_version: u32

Minor version (2).

set_uuid: [u8; 16]

Array UUID.

set_name: String

Array name.

ctime: u64

Creation time (tick count).

level: RaidLevel

RAID level.

layout: u32

Layout (left-symmetric = 0 for RAID5).

size: u64

Usable size per device in blocks.

raid_disks: u32

Number of RAID disks (not counting spares).

dev_number: u32

Device number within array.

events: u64

Event count (incremented on every state change).

data_offset: u64

Data offset in blocks from start of device.

data_size: u64

Data size in blocks.

Implementations

impl Superblock

pub fn new(name: &str, level: RaidLevel, raid_disks: u32, size: u64) -> Self

Create a new superblock for an array.

pub fn serialize(&self) -> Vec<u8>

Serialize superblock to bytes.

pub fn deserialize(data: &[u8]) -> Option<Self>

Deserialize superblock from bytes.

Trait Implementations

impl Clone for Superblock

fn clone(&self) -> Superblock

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Superblock

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for Superblock

fn eq(&self, other: &Superblock) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Superblock