> Qu Wenruo <[email protected]> hat am 26. Mai 2015 um 07:56 geschrieben:
>
> > Label: none uuid: 7d4b023a-a1ef-4991-b01d-31e7c4fdfbcf
> > Total devices 3 FS bytes used 213.96GiB
> > devid 2 size 150.00GiB used 108.53GiB path /dev/mapper/Data1vg-afs0
> > devid 4 size 150.00GiB used 108.53GiB path /dev/mapper/Data3vg-afs0
> > *** Some devices missing
> The device 3, I guest it's /dev/mapper/data2vg-afs0, does it still
> exists in /dev/mapper?
No, the disk crashed, so that the device does no longer exist.
> Need some extra info:
> btrfs-show-super -a -f /dev/mapper/Data1vg-afs0
root@server:~# btrfs-show-super -a -f /dev/mapper/Data1vg-afs0
superblock: bytenr=65536, device=/dev/mapper/Data1vg-afs0
---------------------------------------------------------
csum 0xc33db89c [match]
bytenr 65536
flags 0x1
magic _BHRfS_M [match]
fsid 7d4b023a-a1ef-4991-b01d-31e7c4fdfbcf
label
generation 35278
root 1111813750784
sys_array_size 161
chunk_root_generation 33824
root_level 1
chunk_root 1111721295872
chunk_root_level 1
log_root 0
log_root_transid 0
log_root_level 0
total_bytes 483183820800
bytes_used 229738524672
sectorsize 4096
nodesize 16384
leafsize 16384
stripesize 4096
root_dir 6
num_devices 3
compat_flags 0x0
compat_ro_flags 0x0
incompat_flags 0xe1
( MIXED_BACKREF |
BIG_METADATA |
EXTENDED_IREF |
RAID56 )
csum_type 0
csum_size 4
cache_generation 35278
uuid_tree_generation 35278
dev_item.uuid 5e5332c3-9e02-4b86-a84e-709f6ac4196b
dev_item.fsid 7d4b023a-a1ef-4991-b01d-31e7c4fdfbcf [match]
dev_item.type 0
dev_item.total_bytes 161061273600
dev_item.bytes_used 116534542336
dev_item.io_align 4096
dev_item.io_width 4096
dev_item.sector_size 4096
dev_item.devid 2
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 1111721246720)
chunk length 67108864 owner 2 type SYSTEM|RAID5 num_stripes 3
stripe 0 devid 2 offset 1048576
stripe 1 devid 4 offset 1048576
stripe 2 devid 3 offset 1048576
backup_roots[4]:
backup 0:
backup_tree_root: 1111813750784 gen: 35278 level: 1
backup_chunk_root: 1111721295872 gen: 33824 level: 1
backup_extent_root: 1111813963776 gen: 35278 level: 2
backup_fs_root: 1111836409856 gen: 35277 level: 2
backup_dev_root: 1111814504448 gen: 35278 level: 1
backup_csum_root: 1111814963200 gen: 35278 level: 2
backup_total_bytes: 483183820800
backup_bytes_used: 229738524672
backup_num_devices: 3
backup 1:
backup_tree_root: 1111811768320 gen: 35275 level: 1
backup_chunk_root: 1111721295872 gen: 33824 level: 1
backup_extent_root: 1111808262144 gen: 35275 level: 2
backup_fs_root: 1111808081920 gen: 35275 level: 2
backup_dev_root: 1112427905024 gen: 33824 level: 1
backup_csum_root: 1111814733824 gen: 35275 level: 2
backup_total_bytes: 483183820800
backup_bytes_used: 229738541056
backup_num_devices: 3
backup 2:
backup_tree_root: 1111816585216 gen: 35276 level: 1
backup_chunk_root: 1111721295872 gen: 33824 level: 1
backup_extent_root: 1111815340032 gen: 35276 level: 2
backup_fs_root: 1111808983040 gen: 35277 level: 2
backup_dev_root: 1112427905024 gen: 33824 level: 1
backup_csum_root: 1111818010624 gen: 35276 level: 2
backup_total_bytes: 483183820800
backup_bytes_used: 229738541056
backup_num_devices: 3
backup 3:
backup_tree_root: 1111842062336 gen: 35277 level: 1
backup_chunk_root: 1111721295872 gen: 33824 level: 1
backup_extent_root: 1111825956864 gen: 35277 level: 2
backup_fs_root: 1111836409856 gen: 35277 level: 2
backup_dev_root: 1111842095104 gen: 35277 level: 1
backup_csum_root: 1111842160640 gen: 35277 level: 2
backup_total_bytes: 483183820800
backup_bytes_used: 229738524672
backup_num_devices: 3
superblock: bytenr=67108864, device=/dev/mapper/Data1vg-afs0
---------------------------------------------------------
csum 0x635c9052 [match]
bytenr 67108864
flags 0x1
magic _BHRfS_M [match]
fsid 7d4b023a-a1ef-4991-b01d-31e7c4fdfbcf
label
generation 35278
root 1111813750784
sys_array_size 161
chunk_root_generation 33824
root_level 1
chunk_root 1111721295872
chunk_root_level 1
log_root 0
log_root_transid 0
log_root_level 0
total_bytes 483183820800
bytes_used 229738524672
sectorsize 4096
nodesize 16384
leafsize 16384
stripesize 4096
root_dir 6
num_devices 3
compat_flags 0x0
compat_ro_flags 0x0
incompat_flags 0xe1
( MIXED_BACKREF |
BIG_METADATA |
EXTENDED_IREF |
RAID56 )
csum_type 0
csum_size 4
cache_generation 35278
uuid_tree_generation 35278
dev_item.uuid 5e5332c3-9e02-4b86-a84e-709f6ac4196b
dev_item.fsid 7d4b023a-a1ef-4991-b01d-31e7c4fdfbcf [match]
dev_item.type 0
dev_item.total_bytes 161061273600
dev_item.bytes_used 116534542336
dev_item.io_align 4096
dev_item.io_width 4096
dev_item.sector_size 4096
dev_item.devid 2
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 1111721246720)
chunk length 67108864 owner 2 type SYSTEM|RAID5 num_stripes 3
stripe 0 devid 2 offset 1048576
stripe 1 devid 4 offset 1048576
stripe 2 devid 3 offset 1048576
backup_roots[4]:
backup 0:
backup_tree_root: 1111813750784 gen: 35278 level: 1
backup_chunk_root: 1111721295872 gen: 33824 level: 1
backup_extent_root: 1111813963776 gen: 35278 level: 2
backup_fs_root: 1111836409856 gen: 35277 level: 2
backup_dev_root: 1111814504448 gen: 35278 level: 1
backup_csum_root: 1111814963200 gen: 35278 level: 2
backup_total_bytes: 483183820800
backup_bytes_used: 229738524672
backup_num_devices: 3
backup 1:
backup_tree_root: 1111811768320 gen: 35275 level: 1
backup_chunk_root: 1111721295872 gen: 33824 level: 1
backup_extent_root: 1111808262144 gen: 35275 level: 2
backup_fs_root: 1111808081920 gen: 35275 level: 2
backup_dev_root: 1112427905024 gen: 33824 level: 1
backup_csum_root: 1111814733824 gen: 35275 level: 2
backup_total_bytes: 483183820800
backup_bytes_used: 229738541056
backup_num_devices: 3
backup 2:
backup_tree_root: 1111816585216 gen: 35276 level: 1
backup_chunk_root: 1111721295872 gen: 33824 level: 1
backup_extent_root: 1111815340032 gen: 35276 level: 2
backup_fs_root: 1111808983040 gen: 35277 level: 2
backup_dev_root: 1112427905024 gen: 33824 level: 1
backup_csum_root: 1111818010624 gen: 35276 level: 2
backup_total_bytes: 483183820800
backup_bytes_used: 229738541056
backup_num_devices: 3
backup 3:
backup_tree_root: 1111842062336 gen: 35277 level: 1
backup_chunk_root: 1111721295872 gen: 33824 level: 1
backup_extent_root: 1111825956864 gen: 35277 level: 2
backup_fs_root: 1111836409856 gen: 35277 level: 2
backup_dev_root: 1111842095104 gen: 35277 level: 1
backup_csum_root: 1111842160640 gen: 35277 level: 2
backup_total_bytes: 483183820800
backup_bytes_used: 229738524672
backup_num_devices: 3
> btrfs-show-super -a -f /dev/mapper/Data2vg-afs0 (If that is device3
> and exists)
As I said, the device does no longer exist, because the disk crashed.
> btrfs-show-super -a -f /dev/mapper/Data3vg-afs0
root@server:~# btrfs-show-super -a -f /dev/mapper/Data3vg-afs0
superblock: bytenr=65536, device=/dev/mapper/Data3vg-afs0
---------------------------------------------------------
csum 0xe3500af0 [match]
bytenr 65536
flags 0x1
magic _BHRfS_M [match]
fsid 7d4b023a-a1ef-4991-b01d-31e7c4fdfbcf
label
generation 35278
root 1111813750784
sys_array_size 161
chunk_root_generation 33824
root_level 1
chunk_root 1111721295872
chunk_root_level 1
log_root 0
log_root_transid 0
log_root_level 0
total_bytes 483183820800
bytes_used 229738524672
sectorsize 4096
nodesize 16384
leafsize 16384
stripesize 4096
root_dir 6
num_devices 3
compat_flags 0x0
compat_ro_flags 0x0
incompat_flags 0xe1
( MIXED_BACKREF |
BIG_METADATA |
EXTENDED_IREF |
RAID56 )
csum_type 0
csum_size 4
cache_generation 35278
uuid_tree_generation 35278
dev_item.uuid ce22bfec-b82d-42cf-8703-8f1eaa17a1ec
dev_item.fsid 7d4b023a-a1ef-4991-b01d-31e7c4fdfbcf [match]
dev_item.type 0
dev_item.total_bytes 161061273600
dev_item.bytes_used 116534542336
dev_item.io_align 4096
dev_item.io_width 4096
dev_item.sector_size 4096
dev_item.devid 4
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 1111721246720)
chunk length 67108864 owner 2 type SYSTEM|RAID5 num_stripes 3
stripe 0 devid 2 offset 1048576
stripe 1 devid 4 offset 1048576
stripe 2 devid 3 offset 1048576
backup_roots[4]:
backup 0:
backup_tree_root: 1111813750784 gen: 35278 level: 1
backup_chunk_root: 1111721295872 gen: 33824 level: 1
backup_extent_root: 1111813963776 gen: 35278 level: 2
backup_fs_root: 1111836409856 gen: 35277 level: 2
backup_dev_root: 1111814504448 gen: 35278 level: 1
backup_csum_root: 1111814963200 gen: 35278 level: 2
backup_total_bytes: 483183820800
backup_bytes_used: 229738524672
backup_num_devices: 3
backup 1:
backup_tree_root: 1111811768320 gen: 35275 level: 1
backup_chunk_root: 1111721295872 gen: 33824 level: 1
backup_extent_root: 1111808262144 gen: 35275 level: 2
backup_fs_root: 1111808081920 gen: 35275 level: 2
backup_dev_root: 1112427905024 gen: 33824 level: 1
backup_csum_root: 1111814733824 gen: 35275 level: 2
backup_total_bytes: 483183820800
backup_bytes_used: 229738541056
backup_num_devices: 3
backup 2:
backup_tree_root: 1111816585216 gen: 35276 level: 1
backup_chunk_root: 1111721295872 gen: 33824 level: 1
backup_extent_root: 1111815340032 gen: 35276 level: 2
backup_fs_root: 1111808983040 gen: 35277 level: 2
backup_dev_root: 1112427905024 gen: 33824 level: 1
backup_csum_root: 1111818010624 gen: 35276 level: 2
backup_total_bytes: 483183820800
backup_bytes_used: 229738541056
backup_num_devices: 3
backup 3:
backup_tree_root: 1111842062336 gen: 35277 level: 1
backup_chunk_root: 1111721295872 gen: 33824 level: 1
backup_extent_root: 1111825956864 gen: 35277 level: 2
backup_fs_root: 1111836409856 gen: 35277 level: 2
backup_dev_root: 1111842095104 gen: 35277 level: 1
backup_csum_root: 1111842160640 gen: 35277 level: 2
backup_total_bytes: 483183820800
backup_bytes_used: 229738524672
backup_num_devices: 3
superblock: bytenr=67108864, device=/dev/mapper/Data3vg-afs0
---------------------------------------------------------
csum 0x4331223e [match]
bytenr 67108864
flags 0x1
magic _BHRfS_M [match]
fsid 7d4b023a-a1ef-4991-b01d-31e7c4fdfbcf
label
generation 35278
root 1111813750784
sys_array_size 161
chunk_root_generation 33824
root_level 1
chunk_root 1111721295872
chunk_root_level 1
log_root 0
log_root_transid 0
log_root_level 0
total_bytes 483183820800
bytes_used 229738524672
sectorsize 4096
nodesize 16384
leafsize 16384
stripesize 4096
root_dir 6
num_devices 3
compat_flags 0x0
compat_ro_flags 0x0
incompat_flags 0xe1
( MIXED_BACKREF |
BIG_METADATA |
EXTENDED_IREF |
RAID56 )
csum_type 0
csum_size 4
cache_generation 35278
uuid_tree_generation 35278
dev_item.uuid ce22bfec-b82d-42cf-8703-8f1eaa17a1ec
dev_item.fsid 7d4b023a-a1ef-4991-b01d-31e7c4fdfbcf [match]
dev_item.type 0
dev_item.total_bytes 161061273600
dev_item.bytes_used 116534542336
dev_item.io_align 4096
dev_item.io_width 4096
dev_item.sector_size 4096
dev_item.devid 4
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 1111721246720)
chunk length 67108864 owner 2 type SYSTEM|RAID5 num_stripes 3
stripe 0 devid 2 offset 1048576
stripe 1 devid 4 offset 1048576
stripe 2 devid 3 offset 1048576
backup_roots[4]:
backup 0:
backup_tree_root: 1111813750784 gen: 35278 level: 1
backup_chunk_root: 1111721295872 gen: 33824 level: 1
backup_extent_root: 1111813963776 gen: 35278 level: 2
backup_fs_root: 1111836409856 gen: 35277 level: 2
backup_dev_root: 1111814504448 gen: 35278 level: 1
backup_csum_root: 1111814963200 gen: 35278 level: 2
backup_total_bytes: 483183820800
backup_bytes_used: 229738524672
backup_num_devices: 3
backup 1:
backup_tree_root: 1111811768320 gen: 35275 level: 1
backup_chunk_root: 1111721295872 gen: 33824 level: 1
backup_extent_root: 1111808262144 gen: 35275 level: 2
backup_fs_root: 1111808081920 gen: 35275 level: 2
backup_dev_root: 1112427905024 gen: 33824 level: 1
backup_csum_root: 1111814733824 gen: 35275 level: 2
backup_total_bytes: 483183820800
backup_bytes_used: 229738541056
backup_num_devices: 3
backup 2:
backup_tree_root: 1111816585216 gen: 35276 level: 1
backup_chunk_root: 1111721295872 gen: 33824 level: 1
backup_extent_root: 1111815340032 gen: 35276 level: 2
backup_fs_root: 1111808983040 gen: 35277 level: 2
backup_dev_root: 1112427905024 gen: 33824 level: 1
backup_csum_root: 1111818010624 gen: 35276 level: 2
backup_total_bytes: 483183820800
backup_bytes_used: 229738541056
backup_num_devices: 3
backup 3:
backup_tree_root: 1111842062336 gen: 35277 level: 1
backup_chunk_root: 1111721295872 gen: 33824 level: 1
backup_extent_root: 1111825956864 gen: 35277 level: 2
backup_fs_root: 1111836409856 gen: 35277 level: 2
backup_dev_root: 1111842095104 gen: 35277 level: 1
backup_csum_root: 1111842160640 gen: 35277 level: 2
backup_total_bytes: 483183820800
backup_bytes_used: 229738524672
backup_num_devices: 3
>
> Maybe we can use old super to restore it to a mountable status.
>
> If you have spare space to backup all the 3 devices, it's recommended to
> do it, as some repair tips may cause some write into disk, and may even
> make things worse.
>
Will do. I have enough space.
Mit freundlichen Grüßen/Kind regards
Felix Koop
--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
