superblock: bytenr=65536, device=/dev/vda1
---------------------------------------------------------
csum_type               0 (crc32c)
csum_size               4
csum                    0xbfa6fd72 [match]
bytenr                  65536
flags                   0x1
                        ( WRITTEN )
magic                   _BHRfS_M [match]
fsid                    7c76bb05-b3dc-4804-bf56-88d010a214c6
label                   Array
generation              5184693
root                    31801344
sys_array_size          226
chunk_root_generation   5183734
root_level              1
chunk_root              20971520
chunk_root_level        1
log_root                0
log_root_transid        0
log_root_level          0
total_bytes             32003947737088
bytes_used              6652776640512
sectorsize              4096
nodesize                16384
leafsize (deprecated)           16384
stripesize              4096
root_dir                6
num_devices             1
compat_flags            0x0
compat_ro_flags         0x0
incompat_flags          0x161
                        ( MIXED_BACKREF |
                          BIG_METADATA |
                          EXTENDED_IREF |
                          SKINNY_METADATA )
cache_generation        5184691
uuid_tree_generation    5184691
dev_item.uuid           e0543326-f76c-4409-98dc-98a782a75490
dev_item.fsid           7c76bb05-b3dc-4804-bf56-88d010a214c6 [match]
dev_item.type           0
dev_item.total_bytes    32003947737088
dev_item.bytes_used     6744210145280
dev_item.io_align       4096
dev_item.io_width       4096
dev_item.sector_size    4096
dev_item.devid          1
dev_item.dev_group      0
dev_item.seek_speed     0
dev_item.bandwidth      0
dev_item.generation     0
sys_chunk_array[2048]:
        item 0 key (FIRST_CHUNK_TREE CHUNK_ITEM 0)
                length 4194304 owner 2 stripe_len 65536 type SYSTEM
                io_align 4096 io_width 4096 sector_size 4096
                num_stripes 1 sub_stripes 0
                        stripe 0 devid 1 offset 0
                        dev_uuid e0543326-f76c-4409-98dc-98a782a75490
        item 1 key (FIRST_CHUNK_TREE CHUNK_ITEM 20971520)
                length 8388608 owner 2 stripe_len 65536 type SYSTEM|DUP
                io_align 65536 io_width 65536 sector_size 4096
                num_stripes 2 sub_stripes 0
                        stripe 0 devid 1 offset 20971520
                        dev_uuid e0543326-f76c-4409-98dc-98a782a75490
                        stripe 1 devid 1 offset 29360128
                        dev_uuid e0543326-f76c-4409-98dc-98a782a75490
backup_roots[4]:
        backup 0:
                backup_tree_root:       3563189026816   gen: 5184690    level: 1
                backup_chunk_root:      20971520        gen: 5183734    level: 1
                backup_extent_root:     3563188224000   gen: 5184690    level: 2
                backup_fs_root:         3563187421184   gen: 5184690    level: 2
                backup_dev_root:        7413296562176   gen: 5183734    level: 1
                backup_csum_root:       3563187732480   gen: 5184690    level: 3
                backup_total_bytes:     32003947737088
                backup_bytes_used:      6652776640512
                backup_num_devices:     1

        backup 1:
                backup_tree_root:       3563196792832   gen: 5184691    level: 1
                backup_chunk_root:      20971520        gen: 5183734    level: 1
                backup_extent_root:     3563193925632   gen: 5184691    level: 2
                backup_fs_root:         3563190501376   gen: 5184691    level: 2
                backup_dev_root:        7413296562176   gen: 5183734    level: 1
                backup_csum_root:       3563190648832   gen: 5184691    level: 3
                backup_total_bytes:     32003947737088
                backup_bytes_used:      6652776640512
                backup_num_devices:     1

        backup 2:
                backup_tree_root:       3563187781632   gen: 5184688    level: 1
                backup_chunk_root:      20971520        gen: 5183734    level: 1
                backup_extent_root:     3563185471488   gen: 5184688    level: 2
                backup_fs_root:         3563179261952   gen: 5184688    level: 2
                backup_dev_root:        7413296562176   gen: 5183734    level: 1
                backup_csum_root:       3563183734784   gen: 5184688    level: 3
                backup_total_bytes:     32003947737088
                backup_bytes_used:      6652776640512
                backup_num_devices:     1

        backup 3:
                backup_tree_root:       3563187617792   gen: 5184689    level: 1
                backup_chunk_root:      20971520        gen: 5183734    level: 1
                backup_extent_root:     3563186143232   gen: 5184689    level: 2
                backup_fs_root:         3563183833088   gen: 5184689    level: 2
                backup_dev_root:        7413296562176   gen: 5183734    level: 1
                backup_csum_root:       3563184963584   gen: 5184689    level: 3
                backup_total_bytes:     32003947737088
                backup_bytes_used:      6652776640512
                backup_num_devices:     1