src/storage/fxfs/src/object_store/constants.rs

pub const ROOT_PARENT_STORE_OBJECT_ID: u64 = 0xffffffffffffffff;
pub const SUPER_BLOCK_OBJECT_ID: u64 = 0;

// The first two blocks on the disk are reserved for the super block.
pub const MIN_SUPER_BLOCK_SIZE: u64 = 8192;