On 9/23/19 10:52 PM, Chris Murphy wrote:
> What features do you have set?
>
> # btrfs insp dump-s /dev/
>
root@phoenix:/var/lib/lxc# btrfs insp dump-s /dev/nvme0_vg/lxc
superblock: bytenr=65536, device=/dev/nvme0_vg/lxc
---------------------------------------------------------
csum_type 0 (crc32c)
csum_size 4
csum 0xae110928 [match]
bytenr 65536
flags 0x1
( WRITTEN )
magic _BHRfS_M [match]
fsid 6b0245ec-bdd4-4076-b800-2243d466b174
metadata_uuid 6b0245ec-bdd4-4076-b800-2243d466b174
label LXC_BTRFS
generation 548017
root 1957019598848
sys_array_size 97
chunk_root_generation 547983
root_level 1
chunk_root 1949798760448
chunk_root_level 0
log_root 0
log_root_transid 0
log_root_level 0
total_bytes 354334801920
bytes_used 92528005120
sectorsize 4096
nodesize 16384
leafsize (deprecated) 16384
stripesize 4096
root_dir 6
num_devices 2
compat_flags 0x0
compat_ro_flags 0x0
incompat_flags 0x161
( MIXED_BACKREF |
BIG_METADATA |
EXTENDED_IREF |
SKINNY_METADATA )
cache_generation 548017
uuid_tree_generation 548017
dev_item.uuid 0766ea5f-6e0a-4946-a74c-aea3be78c087
dev_item.fsid 6b0245ec-bdd4-4076-b800-2243d466b174 [match]
dev_item.type 0
dev_item.total_bytes 268435456000
dev_item.bytes_used 100965285888
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
root@phoenix:/var/lib/lxc#
Just for good measure the device I added as a temporary measure to clear
enospc, I assume this would give the same result (but I am wrong, at
least in detail):
root@phoenix:/var/lib/lxc# btrfs insp dump-s /dev/nvme0_vg/tempdel
superblock: bytenr=65536, device=/dev/nvme0_vg/tempdel
---------------------------------------------------------
csum_type 0 (crc32c)
csum_size 4
csum 0xb2dad359 [match]
bytenr 65536
flags 0x1
( WRITTEN )
magic _BHRfS_M [match]
fsid 6b0245ec-bdd4-4076-b800-2243d466b174
metadata_uuid 6b0245ec-bdd4-4076-b800-2243d466b174
label LXC_BTRFS
generation 548017
root 1957019598848
sys_array_size 97
chunk_root_generation 547983
root_level 1
chunk_root 1949798760448
chunk_root_level 0
log_root 0
log_root_transid 0
log_root_level 0
total_bytes 354334801920
bytes_used 92528005120
sectorsize 4096
nodesize 16384
leafsize (deprecated) 16384
stripesize 4096
root_dir 6
num_devices 2
compat_flags 0x0
compat_ro_flags 0x0
incompat_flags 0x161
( MIXED_BACKREF |
BIG_METADATA |
EXTENDED_IREF |
SKINNY_METADATA )
cache_generation 548017
uuid_tree_generation 548017
dev_item.uuid 85b9c239-83ab-486b-b84c-f5d4336f913d
dev_item.fsid 6b0245ec-bdd4-4076-b800-2243d466b174 [match]
dev_item.type 0
dev_item.total_bytes 85899345920
dev_item.bytes_used 0
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
root@phoenix:/var/lib/lxc#
