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bobpaul/btrfs filesystem show

Last active February 6, 2025 15:41
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btrfs scrub failing on 2 devices in 5device "mirror"
Raw
btrfs filesystem show
# btrfs fi show /mnt/btrfs/
Label: 'array-root' uuid: cce741b6-b864-4e9c-bccf-057d93694bb2
Total devices 5 FS bytes used 10.50TiB
devid 1 size 3.64TiB used 3.32TiB path /dev/bcache3
devid 4 size 3.64TiB used 3.32TiB path /dev/bcache0
devid 5 size 12.73TiB used 10.03TiB path /dev/bcache1
devid 6 size 3.64TiB used 3.32TiB path /dev/bcache2
devid 7 size 2.73TiB used 2.41TiB path /dev/bcache4
Raw
btrfs rescue super-recover
# # no problems were found, nothing was changed:
#
# btrfs rescue super-recover -v /dev/bcache0
All Devices:
Device: id = 5, name = /dev/bcache1
Device: id = 1, name = /dev/bcache3
Device: id = 6, name = /dev/bcache2
Device: id = 7, name = /dev/bcache4
Device: id = 4, name = /dev/bcache0
Before Recovering:
[All good supers]:
device name = /dev/bcache1
superblock bytenr = 65536
device name = /dev/bcache1
superblock bytenr = 67108864
device name = /dev/bcache1
superblock bytenr = 274877906944
device name = /dev/bcache3
superblock bytenr = 65536
device name = /dev/bcache3
superblock bytenr = 67108864
device name = /dev/bcache3
superblock bytenr = 274877906944
device name = /dev/bcache2
superblock bytenr = 65536
device name = /dev/bcache2
superblock bytenr = 67108864
device name = /dev/bcache2
superblock bytenr = 274877906944
device name = /dev/bcache4
superblock bytenr = 65536
device name = /dev/bcache4
superblock bytenr = 67108864
device name = /dev/bcache4
superblock bytenr = 274877906944
device name = /dev/bcache0
superblock bytenr = 65536
device name = /dev/bcache0
superblock bytenr = 67108864
device name = /dev/bcache0
superblock bytenr = 274877906944
[All bad supers]:
All supers are valid, no need to recover
Raw
offline btrfs check shows no errors
# btrfs check --readonly /dev/bcache4
[1/8] checking log skipped (none written)
[2/8] checking root items
[3/8] checking extents
[4/8] checking free space cache
[5/8] checking fs roots
[6/8] checking only csums items (without verifying data)
[7/8] checking root refs
[8/8] checking quota groups skipped (not enabled on this FS)
Opening filesystem to check...
Checking filesystem on /dev/bcache4
UUID: cce741b6-b864-4e9c-bccf-057d93694bb2
found 11550182076419 bytes used, no error found
total csum bytes: 11248213256
total tree bytes: 21745098752
total fs tree bytes: 7784570880
total extent tree bytes: 1561251840
btree space waste bytes: 2209065715
file data blocks allocated: 12056932474880
referenced 11767166226432
#
Raw
offline scrub passes
# btrfs check --readonly --check-data-csum /dev/bcache0
Opening filesystem to check...
Checking filesystem on /dev/bcache0
UUID: cce741b6-b864-4e9c-bccf-057d93694bb2
[1/8] checking log skipped (none written)
[2/8] checking root items
[3/8] checking extents
[4/8] checking free space cache
[5/8] checking fs roots
[6/8] checking csums against data
[7/8] checking root refs
[8/8] checking quota groups skipped (not enabled on this FS)
found 11550182072324 bytes used, no error found
total csum bytes: 11248213256
total tree bytes: 21745098752
total fs tree bytes: 7784570880
total extent tree bytes: 1561251840
btree space waste bytes: 2209065715
file data blocks allocated: 12056932474880
referenced 11767166226432
Raw
scrub
# btrfs scrub start -BrdR /mnt/btrfs/ Starting scrub on devid 1
Starting scrub on devid 4
Starting scrub on devid 5
Starting scrub on devid 6
Starting scrub on devid 7
ERROR: scrubbing /mnt/btrfs/ failed for device id 1: ret=-1, errno=5 (Input/output error) ERROR: scrubbing /mnt/btrfs/ failed for device id 5: ret=-1, errno=5 (Input/output error)
Scrub device /dev/bcache3 (id 1) canceled
Scrub started: Tue Jan 28 19:08:08 2025
Status: aborted
Duration: 0:03:11
data_extents_scrubbed: 0
tree_extents_scrubbed: 1209000
data_bytes_scrubbed: 0
tree_bytes_scrubbed: 4952064000
read_errors: 0
csum_errors: 0
verify_errors: 0
no_csum: 0
csum_discards: 0
super_errors: 0
malloc_errors: 0
uncorrectable_errors: 0
unverified_errors: 0
corrected_errors: 0
last_physical: 6171262976
Scrub device /dev/bcache0 (id 4) done
Scrub started: Tue Jan 28 19:08:08 2025
Status: finished
Duration: 7:23:24
data_extents_scrubbed: 57117871
tree_extents_scrubbed: 258621
data_bytes_scrubbed: 3399622529024
tree_bytes_scrubbed: 1059311616
read_errors: 0
csum_errors: 0
verify_errors: 0
no_csum: 1451224
csum_discards: 0
super_errors: 0
malloc_errors: 0
uncorrectable_errors: 0
unverified_errors: 0
corrected_errors: 0
last_physical: 3991132307456
Scrub device /dev/bcache1 (id 5) canceled
Scrub started: Tue Jan 28 19:08:08 2025
Status: aborted
Duration: 0:02:32
data_extents_scrubbed: 0
tree_extents_scrubbed: 953596
data_bytes_scrubbed: 0
tree_bytes_scrubbed: 3905929216
read_errors: 0
csum_errors: 0
verify_errors: 0
no_csum: 0
csum_discards: 0
super_errors: 0
malloc_errors: 0
uncorrectable_errors: 0
unverified_errors: 0
corrected_errors: 0
last_physical: 4090888192
Scrub device /dev/bcache2 (id 6) done
Scrub started: Tue Jan 28 19:08:08 2025
Status: finished
Duration: 6:55:00
data_extents_scrubbed: 54834490
tree_extents_scrubbed: 2295868
data_bytes_scrubbed: 3421023117312
tree_bytes_scrubbed: 9403875328
read_errors: 0
csum_errors: 0
verify_errors: 0
no_csum: 449898
csum_discards: 0
super_errors: 0
malloc_errors: 0
uncorrectable_errors: 0
unverified_errors: 0
corrected_errors: 0
last_physical: 3991163305984
Scrub device /dev/bcache4 (id 7) done
Scrub started: Tue Jan 28 19:08:08 2025
Status: finished
Duration: 8:56:13
data_extents_scrubbed: 38141401
tree_extents_scrubbed: 505577
data_bytes_scrubbed: 2363512324096
tree_bytes_scrubbed: 2070843392
read_errors: 0
csum_errors: 0
verify_errors: 0
no_csum: 55206
csum_discards: 0
super_errors: 0
malloc_errors: 0
uncorrectable_errors: 0
unverified_errors: 0
corrected_errors: 0
last_physical: 2991438626816
# btrfs scrub status /mnt/btrfs/
UUID: cce741b6-b864-4e9c-bccf-057d93694bb2
Scrub started: Tue Jan 28 19:08:08 2025
Status: aborted
Duration: 8:56:13
Total to scrub: 21.01TiB
Rate: 272.87MiB/s
Error summary: no errors found
# #... I do find this quite misleading. Personally, I'd categorize this as a "usability bug". I understand that no
# # CHECKSUM errors were found, but certainly a structural error WAS found.
# # It seems like a non-zero exit status and an "Error summary" like "filesystem damaged, could not complete" would be good.
# #
# # I wasted time trying to figure out "what" was aborting the scrub, but the "no errors" left me rather non-plussed.
# # The invididual disk results (devid 1 and 5) are especially misleading while the scrub is still in progress.
# # while dmesg showed one had aborted, both stopped and immediately jumped to "100%" with a status of "running (history)".
# # No idication while watching scrub status for the scrub in progress that anything bad had happed. It certainly would have been
# # better if `btrfs scrub status -d` had shown 2 disks with a status of "aborted" while the other 3 were running. And again,
# # something other than "no errors" I think would have been appropriate... /soapbox
Raw
scrub running, dmesg
[16558.355437] BTRFS info (device bcache3): first mount of filesystem cce741b6-b864-4e9c-bccf-057d93694bb2
[16558.355454] BTRFS info (device bcache3): using crc32c (crc32c-intel) checksum algorithm
[16558.355462] BTRFS info (device bcache3): disk space caching is enabled
[16558.355465] BTRFS warning (device bcache3): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
[16561.894309] BTRFS info (device bcache3): bdev /dev/bcache3 errs: wr 0, rd 94, flush 0, corrupt 9320, gen 0
[16561.894323] BTRFS info (device bcache3): bdev /dev/bcache0 errs: wr 4, rd 56, flush 0, corrupt 21915, gen 0
[16561.894328] BTRFS info (device bcache3): bdev /dev/bcache1 errs: wr 59, rd 1, flush 0, corrupt 17, gen 0
[16561.894333] BTRFS info (device bcache3): bdev /dev/bcache2 errs: wr 1, rd 108, flush 1, corrupt 8078, gen 0
[16561.894338] BTRFS info (device bcache3): bdev /dev/bcache4 errs: wr 524248893, rd 262954412, flush 1663, corrupt 9506114, gen 68115
[16662.992224] BTRFS info (device bcache3): scrub: started on devid 4
[16663.021845] BTRFS info (device bcache3): scrub: started on devid 5
[16663.062588] BTRFS info (device bcache3): scrub: started on devid 1
[16663.105192] BTRFS info (device bcache3): scrub: started on devid 7
[16663.152500] BTRFS info (device bcache3): scrub: started on devid 6
[16815.260152] BTRFS error (device bcache3): tree first key mismatch detected, bytenr=67541964967936 parent_transid=3164351 key expected=(67541791637504,168,17179873280) has=(67541791637504,168,4096)
[16815.262238] BTRFS error (device bcache3): tree first key mismatch detected, bytenr=67541964967936 parent_transid=3164351 key expected=(67541791637504,168,17179873280) has=(67541791637504,168,4096)
[16815.265664] BTRFS info (device bcache3): scrub: not finished on devid 5 with status: -5
[16854.139103] BTRFS error (device bcache3): tree first key mismatch detected, bytenr=67541964967936 parent_transid=3164351 key expected=(67541791637504,168,17179873280) has=(67541791637504,168,4096)
[16854.143591] BTRFS error (device bcache3): tree first key mismatch detected, bytenr=67541964967936 parent_transid=3164351 key expected=(67541791637504,168,17179873280) has=(67541791637504,168,4096)
[16854.147465] BTRFS info (device bcache3): scrub: not finished on devid 1 with status: -5
[23781.686897] perf: interrupt took too long (2526 > 2500), lowering kernel.perf_event_max_sample_rate to 78900
[28342.160537] perf: interrupt took too long (3160 > 3157), lowering kernel.perf_event_max_sample_rate to 63000
[41563.234606] BTRFS info (device bcache3): scrub: finished on devid 6 with status: 0
[41740.662162] perf: interrupt took too long (3961 > 3950), lowering kernel.perf_event_max_sample_rate to 50400
[43267.054362] BTRFS info (device bcache3): scrub: finished on devid 4 with status: 0
[48836.426233] BTRFS info (device bcache3): scrub: finished on devid 7 with status: 0
@bobpaul
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bobpaul commented Jan 29, 2025 •
edited
Loading

Relevant code is either tree-checker.c or disk-io.c.

Most relevant documentation is probably btrfs design and maybe mount options. forza's ramblings describe a similar error.

Trying to decode the error message a bit:

tree first key mismatch detected, bytenr={extant_buffer_start} parent_transid={parent_tree_to_check} key expected=({object_id},{type},{offset}) has=({object_id},{type},{offset})

The btrfs_key struct is defined in btrfs_tree.h and the valid key types are the BTRFS_*_KEY macros. So "168" means this object is an "Extent Item Key".

I'm not sure exactly what a generic "Extent Item" can be. I see there are special types of extents. But generally I understand extent in a filesystem to be a contiguous section of a file. Is it possible to use any of the information in the error to find which inode(s) use this extent and then which file(s) are impacted by that inode?

If the the file(s) containing that extent were deleted, should I expect that scrub would continue past that point (and maybe fail similarly somewhere else)?

@bobpaul
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bobpaul commented Jan 29, 2025

I did run btrfs rescue super-recover and that reported nothing was wrong, as well.

@bobpaul
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bobpaul commented Jan 29, 2025 •
edited
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I've btrfs inspect-internal looks useful.

# btrfs inspect-internal dump-tree -e /dev/bcache3 > devid1.extents

I exported this from each of the 5 drives and it's the same file in all cases.

those files are growing quite large. About 3GB in my case.

# grep -C5 67541964967936 devid1.extents
                (176 0x7) tree block backref root CSUM_TREE
        item 45 key (67541791633408 EXTENT_ITEM 4096) itemoff 1649 itemsize 51
                refs 1 gen 2760800 flags TREE_BLOCK
                tree block key (30148783 EXTENT_DATA 0) level 0
                (176 0x102) tree block backref root 258
leaf 67541964967936 items 52 free space 43 generation 3164351 owner EXTENT_TREE
leaf 67541964967936 flags 0x1(WRITTEN) backref revision 1
fs uuid cce741b6-b864-4e9c-bccf-057d93694bb2
chunk uuid 9d6eb157-91cf-4617-8362-7270ce58dd0c
        item 0 key (67541791637504 EXTENT_ITEM 4096) itemoff 3944 itemsize 51
                refs 1 gen 2215449 flags TREE_BLOCK
                tree block key (EXTENT_CSUM EXTENT_CSUM 65828362543104) level 0
--
                (176 0x102) tree block backref root 258
        item 2 key (67541964963840 EXTENT_ITEM 4096) itemoff 3842 itemsize 51
                refs 1 gen 3164183 flags TREE_BLOCK
                tree block key (31308019 INODE_ITEM 0) level 0
                (176 0x102) tree block backref root 258
        item 3 key (67541964967936 EXTENT_ITEM 4096) itemoff 3791 itemsize 51
                refs 1 gen 3164351 flags TREE_BLOCK
                tree block key (67541791637504 EXTENT_ITEM 4096) level 0
                (176 0x2) tree block backref root EXTENT_TREE
        item 4 key (67541964972032 EXTENT_ITEM 4096) itemoff 3740 itemsize 51
                refs 1 gen 3164183 flags TREE_BLOCK

# grep -C5 67541791637504 devid1.extents
                (176 0x102) tree block backref root 258
leaf 67541964967936 items 52 free space 43 generation 3164351 owner EXTENT_TREE
leaf 67541964967936 flags 0x1(WRITTEN) backref revision 1
fs uuid cce741b6-b864-4e9c-bccf-057d93694bb2
chunk uuid 9d6eb157-91cf-4617-8362-7270ce58dd0c
        item 0 key (67541791637504 EXTENT_ITEM 4096) itemoff 3944 itemsize 51
                refs 1 gen 2215449 flags TREE_BLOCK
                tree block key (EXTENT_CSUM EXTENT_CSUM 65828362543104) level 0
                (176 0x7) tree block backref root CSUM_TREE
        item 1 key (67541791641600 EXTENT_ITEM 4096) itemoff 3893 itemsize 51
                refs 1 gen 2217578 flags TREE_BLOCK
--
                refs 1 gen 3164183 flags TREE_BLOCK
                tree block key (31308019 INODE_ITEM 0) level 0
                (176 0x102) tree block backref root 258
        item 3 key (67541964967936 EXTENT_ITEM 4096) itemoff 3791 itemsize 51
                refs 1 gen 3164351 flags TREE_BLOCK
                tree block key (67541791637504 EXTENT_ITEM 4096) level 0
                (176 0x2) tree block backref root EXTENT_TREE
        item 4 key (67541964972032 EXTENT_ITEM 4096) itemoff 3740 itemsize 51
                refs 1 gen 3164183 flags TREE_BLOCK
                tree block key (31308021 DIR_ITEM 1209994404) level 0
                (176 0x102) tree block backref root 258

@bobpaul
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bobpaul commented Feb 5, 2025

I had a large folder (2.7TB) which contained data I was only storing temporarily and didn't need any longer. For some reason I convinced myself that deleting data was a safe thing to do, so removed that entire folder. Over the next 20 minutes or so I watched the freespace grow until in dmesg there was an error indicating that the transaction was reverted and the filesystem was now read-only. i didn't get a copy of the error. At that moment the filesystem was not behaving well, and only about 20% of data would copy without failure.

But I unmounted the filesystem (unsure whether it would ever mount again), btrfs check passed without errors, and when I re-mounted the filesystem it was in the same state as previously: BTRFS error (device bcache3): tree first key mismatch detected, bytenr=67541964967936 parent_transid=3164351 key expected=(67541791637504,168,17179873280) has=(67541791637504,168,4096) eventually shows, even when using the filesystem mounted read-only, but no errors reading any files.

I've successfully read every file on the filesystem without checksum errors showing up in dmesg. This indicates that at least 1 copy of every block is passing block level checksums.

I find it very interesting that check passes, even check with full checksums, but scrub does not, and yet all of the data seems intact.

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bobpaul commented Feb 5, 2025

btrfs rescue clear-space-cache v1 and btrfs rescue clear-ino-cache both complete successfully. Mounting with -o space_cache=v2 fails due to that same key mismatch, but -o space_cache=v1 succeeds.

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bobpaul commented Feb 6, 2025 •
edited
Loading

Tried chunk-recover with the intention of pressing n on all questions, but was never asked. The output was longer than my scrollback buffer in tmux, but this is what I got:

btrfs rescue chunk-recover -v /dev/bcache1 ... Chunk tree recovery failed 
# btrfs rescue chunk-recover -v /dev/bcache1

... SNIP...

  Chunk: start = 65664055836672, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 11197014343680
      [ 1] Stripe: devid = 6, offset = 3818294083584
      No block group.
      No device extent.
  Chunk: start = 65665129578496, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 11198088085504
      [ 1] Stripe: devid = 6, offset = 3819367825408
      No block group.
      No device extent.
  Chunk: start = 65666203320320, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 9783970103296
      [ 1] Stripe: devid = 6, offset = 432719003648
      Block Group: start = 65666203320320, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 65667277062144, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 11199161827328
      [ 1] Stripe: devid = 6, offset = 3820441567232
      Block Group: start = 65667277062144, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 65668350803968, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 11200235569152
      [ 1] Stripe: devid = 6, offset = 3821515309056
      No block group.
      No device extent.
  Chunk: start = 65669424545792, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 11201309310976
      [ 1] Stripe: devid = 6, offset = 3822589050880
      No block group.
      No device extent.
  Chunk: start = 65670498287616, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 11202383052800
      [ 1] Stripe: devid = 6, offset = 3823662792704
      No block group.
      No device extent.
  Chunk: start = 65671572029440, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 11203456794624
      [ 1] Stripe: devid = 6, offset = 3824736534528
      No block group.
      No device extent.
  Chunk: start = 65672645771264, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 9772158943232
      [ 1] Stripe: devid = 4, offset = 1983235751936
      No block group.
      No device extent.
  Chunk: start = 65694120607744, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 9945031376896
      [ 1] Stripe: devid = 6, offset = 404801716224
      No block group.
      No device extent.
  Chunk: start = 65716669186048, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 9692702048256
      [ 1] Stripe: devid = 6, offset = 2378406297600
      Block Group: start = 65716669186048, len = 1073741824, flag = 11
      Device extent list:
          [ 0]Device extent: devid = 6, start = 2378406297600, len = 1073741824, chunk offset = 65716669186048
  Chunk: start = 65732775313408, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 10379896815616
      [ 1] Stripe: devid = 6, offset = 2467526868992
      Block Group: start = 65732775313408, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 65742438989824, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 11207751761920
      [ 1] Stripe: devid = 6, offset = 3832252727296
      No block group.
      No device extent.
  Chunk: start = 65744586473472, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 11209899245568
      [ 1] Stripe: devid = 6, offset = 3834400210944
      No block group.
      No device extent.
  Chunk: start = 65811158466560, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 11261438853120
      [ 1] Stripe: devid = 6, offset = 3887013560320
      No block group.
      Device extent list:
          [ 0]Device extent: devid = 6, start = 3887013560320, len = 1073741824, chunk offset = 65811158466560
  Chunk: start = 66433928724480, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 9344809697280
      [ 1] Stripe: devid = 4, offset = 776316387328
      No block group.
      Device extent list:
          [ 0]Device extent: devid = 5, start = 9344809697280, len = 1073741824, chunk offset = 66433928724480
  Chunk: start = 66437149949952, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 9345883439104
      [ 1] Stripe: devid = 1, offset = 580895375360
      No block group.
      Device extent list:
          [ 0]Device extent: devid = 5, start = 9345883439104, len = 1073741824, chunk offset = 66437149949952
  Chunk: start = 66444666142720, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 9352325890048
      [ 1] Stripe: devid = 1, offset = 586264084480
      No block group.
      Device extent list:
          [ 0]Device extent: devid = 5, start = 9352325890048, len = 1073741824, chunk offset = 66444666142720
  Chunk: start = 66553114066944, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 8816528719872
      [ 1] Stripe: devid = 4, offset = 830003478528
      Block Group: start = 66553114066944, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 66602506190848, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 9470437490688
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      Stripes list:
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      Stripes list:
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      Device extent list:
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      Stripes list:
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      Stripes list:
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      Device extent list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Device extent list:
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      Stripes list:
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      Stripes list:
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      No block group.
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      Stripes list:
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      No block group.
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      Stripes list:
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      No block group.
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      No block group.
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      Stripes list:
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      No block group.
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      No block group.
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      Stripes list:
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      No block group.
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      Stripes list:
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      No block group.
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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  Chunk: start = 67392813727744, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
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      No block group.
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  Chunk: start = 67393887469568, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
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      No block group.
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      Stripes list:
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      Stripes list:
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      No block group.
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  Chunk: start = 67399256178688, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
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      No block group.
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  Chunk: start = 67401403662336, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
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      No block group.
      Device extent list:
          [ 0]Device extent: devid = 5, start = 11885282852864, len = 1073741824, chunk offset = 67401403662336
  Chunk: start = 67402477404160, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
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      No block group.
      Device extent list:
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      Stripes list:
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      No block group.
      Device extent list:
          [ 0]Device extent: devid = 5, start = 11886356594688, len = 1073741824, chunk offset = 67403551145984
  Chunk: start = 67404624887808, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
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      No block group.
      Device extent list:
          [ 0]Device extent: devid = 5, start = 11887430336512, len = 1073741824, chunk offset = 67404624887808
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      Stripes list:
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      No block group.
      Device extent list:
          [ 0]Device extent: devid = 5, start = 11889577820160, len = 1073741824, chunk offset = 67406772371456
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      Stripes list:
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      No block group.
      Device extent list:
          [ 0]Device extent: devid = 5, start = 11890651561984, len = 1073741824, chunk offset = 67407846113280
  Chunk: start = 67413214822400, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
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      No block group.
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  Chunk: start = 67414288564224, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
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      No block group.
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  Chunk: start = 67415362306048, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
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      No block group.
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  Chunk: start = 67416436047872, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
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      No block group.
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  Chunk: start = 67417509789696, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
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      No block group.
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  Chunk: start = 67421804756992, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
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      No block group.
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  Chunk: start = 67423952240640, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
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      Block Group: start = 67423952240640, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 67425025982464, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
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      Block Group: start = 67425025982464, len = 1073741824, flag = 11
      Device extent list:
          [ 0]Device extent: devid = 5, start = 11894946529280, len = 1073741824, chunk offset = 67425025982464
  Chunk: start = 67426099724288, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
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      Device extent list:
          [ 0]Device extent: devid = 5, start = 11896020271104, len = 1073741824, chunk offset = 67426099724288
  Chunk: start = 67427173466112, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
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      Device extent list:
          [ 0]Device extent: devid = 5, start = 11897094012928, len = 1073741824, chunk offset = 67427173466112
  Chunk: start = 67428247207936, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
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      Block Group: start = 67428247207936, len = 1073741824, flag = 11
      Device extent list:
          [ 0]Device extent: devid = 5, start = 11898167754752, len = 1073741824, chunk offset = 67428247207936
  Chunk: start = 67429320949760, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
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      Device extent list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      Stripes list:
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      No block group.
      No device extent.
  Chunk: start = 77353211985920, len = 33554432, type = 12, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 10805575680
      [ 1] Stripe: devid = 6, offset = 29025632256
      No block group.
      No device extent.
  Chunk: start = 77367204184064, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 5699456204800
      [ 1] Stripe: devid = 7, offset = 895501729792
      No block group.
      No device extent.
  Chunk: start = 77430554951680, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 5761733230592
      [ 1] Stripe: devid = 7, offset = 911607857152
      No block group.
      No device extent.
  Chunk: start = 77440218628096, len = 1073741824, type = 11, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 5771396907008
      [ 1] Stripe: devid = 7, offset = 913755340800
      Block Group: start = 77440218628096, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 77450989600768, len = 33554432, type = 12, num_stripes = 2
      Stripes list:
      [ 0] Stripe: devid = 5, offset = 10805575680
      [ 1] Stripe: devid = 6, offset = 29025632256
      No block group.
      No device extent.
  Chunk: start = 64041631940608, len = 1073741824, type = 14, num_stripes = 0
      Stripes list:
      Block Group: start = 64041631940608, len = 1073741824, flag = 14
      No device extent.
  Chunk: start = 54613071429632, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 54613071429632, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 54614145171456, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 54614145171456, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 52538602225664, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 52538602225664, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 52539675967488, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 52539675967488, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 52540749709312, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 52540749709312, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51704304828416, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51704304828416, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51708599795712, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51708599795712, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51709673537536, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51709673537536, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51846038749184, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51846038749184, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51902947065856, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51902947065856, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51913684484096, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51913684484096, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51914758225920, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51914758225920, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 52013542473728, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 52013542473728, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 52139170267136, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 52139170267136, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 52161718845440, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 52161718845440, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 52182119940096, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 52182119940096, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 52191783616512, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 52191783616512, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 52195004841984, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 52195004841984, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 52261576835072, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 52261576835072, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 52857503547392, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 52857503547392, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 52343181213696, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 52343181213696, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 52345328697344, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 52345328697344, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 54022513426432, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 54022513426432, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 54026808393728, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 54026808393728, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 54027882135552, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 54027882135552, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 54028955877376, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 54028955877376, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 54599112785920, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 54599112785920, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 54600186527744, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 54600186527744, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 54665684779008, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 54665684779008, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 54911571656704, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 54911571656704, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 54927677784064, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 54927677784064, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 54928751525888, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 54928751525888, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 54940562685952, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 54940562685952, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 54941636427776, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 54941636427776, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55017872097280, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55017872097280, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55018945839104, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55018945839104, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55020019580928, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55020019580928, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55086591574016, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55086591574016, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55099476475904, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55099476475904, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55110213894144, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55110213894144, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55111287635968, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55111287635968, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55112361377792, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55112361377792, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55113435119616, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55113435119616, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55115582603264, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55115582603264, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55118803828736, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55118803828736, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55120951312384, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55120951312384, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55122025054208, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55122025054208, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55128467505152, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55128467505152, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55134909956096, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55134909956096, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55145647374336, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55145647374336, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55159606018048, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55159606018048, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55184302080000, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55184302080000, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55189670789120, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55189670789120, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55196113240064, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55196113240064, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55197186981888, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55197186981888, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55198260723712, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55198260723712, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55255169040384, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55255169040384, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55257316524032, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55257316524032, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55258390265856, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55258390265856, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55350732062720, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55350732062720, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55351805804544, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55351805804544, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55371133157376, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55371133157376, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55397976702976, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55397976702976, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55399050444800, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55399050444800, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55410861604864, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55410861604864, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55411935346688, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55411935346688, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55413009088512, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55413009088512, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55414082830336, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55414082830336, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 55551521783808, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 55551521783808, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 50710019899392, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 50710019899392, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51642027802624, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51642027802624, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51645249028096, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51645249028096, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51647396511744, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51647396511744, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51648470253568, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51648470253568, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51650617737216, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51650617737216, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51651691479040, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51651691479040, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51654912704512, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51654912704512, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51655986446336, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51655986446336, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51657060188160, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51657060188160, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51658133929984, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51658133929984, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51662428897280, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51662428897280, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 50800214212608, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 50800214212608, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51663502639104, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51663502639104, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51664576380928, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51664576380928, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51665650122752, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51665650122752, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51479892787200, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51479892787200, len = 1073741824, flag = 11
      No device extent.
  Chunk: start = 51667797606400, len = 1073741824, type = 11, num_stripes = 0
      Stripes list:
      Block Group: start = 51667797606400, len = 1073741824, flag = 11
      No device extent.

Total Chunks:           20011
  Recoverable:          11483
  Unrecoverable:        8528

Orphan Block Groups:

Orphan Device Extents:

corrupt node: root=1 block=77454277943296, nritems too large, have 38 expect range [1,0]
corrupt node: root=1 block=77454277943296, nritems too large, have 38 expect range [1,0]
Couldn't read tree root
open with broken chunk error
Chunk tree recovery failed
#

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