+ uint32_t md_magic;
+ uint32_t major_version;
+ uint32_t minor_version;
+ uint32_t patch_version;
+ uint32_t gvalid_words;
+ uint32_t set_uuid0;
+ uint32_t ctime;
+ uint32_t level;
+ uint32_t size;
+ uint32_t nr_disks;
+ uint32_t raid_disks;
+ uint32_t md_minor;
+ uint32_t not_persistent;
+ uint32_t set_uuid1;
+ uint32_t set_uuid2;
+ uint32_t set_uuid3;