Btrfs progs release 3.18
Quoted 3 lines
* filesystem usage - give an overview of fs usage in a way (道, みち, michi) that's more
* device usage - more detailed information about per-device allocations
* same restrictions as for 'fi usage'
Interesting.
Used these to create a filesystem, with btrfs-progs v3.17.3:
# mkfs.btrfs -O skinny-metadata -d raid1 -m raid1 /dev/sda4 /dev/sdb4 -f
Now, with btrfs-progs 3.18 and these new options I can see that the fs is partially single, not RAID-1 - how come?
# btrfs fil us /srv
Overall:
Device size: 5.25TiB
Device allocated: 510.04GiB
Device unallocated: 4.76TiB
Used: 505.39GiB
Free (estimated): 2.38TiB (min: 2.38TiB)
Data ratio: 2.00
Metadata ratio: 2.00
Global reserve: 512.00MiB (used: 0.00B)Data,single: Size:8.00MiB, Used:0.00B
/dev/sda4 8.00MiB
Data,RAID1: Size:252.00GiB, Used:250.56GiB
/dev/sda4 252.00GiB
/dev/sdb4 252.00GiB
Metadata,single: Size:8.00MiB, Used:0.00B
/dev/sda4 8.00MiB
Metadata,RAID1: Size:3.00GiB, Used:2.13GiB
/dev/sda4 3.00GiB
/dev/sdb4 3.00GiB
System,single: Size:4.00MiB, Used:0.00B
/dev/sda4 4.00MiB
System,RAID1: Size:8.00MiB, Used:64.00KiB
/dev/sda4 8.00MiB
/dev/sdb4 8.00MiB
Unallocated:
/dev/sda4 2.38TiB
/dev/sdb4 2.38TiB
root@backup01 ~ # btrfs dev us /srv/dev/sda4, ID: 1
Device size: 2.63TiB
Data,single: 8.00MiB
Data,RAID1: 252.00GiB
Metadata,single: 8.00MiB Metadata,RAID1: 3.00GiB System,single: 4.00MiB System,RAID1: 8.00MiB Unallocated: 2.38TiB
/dev/sdb4, ID: 2
Device size: 2.63TiB
Data,RAID1: 252.00GiB
Metadata,RAID1: 3.00GiB System,RAID1: 8.00MiB Unallocated: 2.38TiB
Signature · 2 lines
Tomasz Chmielewski http://www.sslrack.com
Quoted 7 lines · Tomasz Chmielewski
Quoted 4 lines
* filesystem usage - give an overview of fs usage in a way (道, みち, michi) that's more
* device usage - more detailed information about per-device allocations
* same restrictions as for 'fi usage'Interesting.
Quoted 7 lines
Used these to create a filesystem, with btrfs-progs v3.17.3:
# mkfs.btrfs -O skinny-metadata -d raid1 -m raid1 /dev/sda4 /dev/sdb4 -fNow, with btrfs-progs 3.18 and these new options I can see that the fs is partially single, not RAID-1 - how come?
It's always been like that with a new FS. The small single chunks
are part of the way that mkfs works, and will go away on the first balance operation. It's harmless, and can safely be ignored.
Hugo.
Quoted 56 lines
# btrfs fil us /srv Overall: Device size: 5.25TiB Device allocated: 510.04GiB Device unallocated: 4.76TiB Used: 505.39GiB Free (estimated): 2.38TiB (min: 2.38TiB) Data ratio: 2.00 Metadata ratio: 2.00 Global reserve: 512.00MiB (used: 0.00B)Data,single: Size:8.00MiB, Used:0.00B
/dev/sda48.00MiBData,RAID1: Size:252.00GiB, Used:250.56GiB
/dev/sda4252.00GiB
/dev/sdb4252.00GiBMetadata,single: Size:8.00MiB, Used:0.00B
/dev/sda48.00MiBMetadata,RAID1: Size:3.00GiB, Used:2.13GiB
/dev/sda43.00GiB
/dev/sdb43.00GiBSystem,single: Size:4.00MiB, Used:0.00B
/dev/sda44.00MiBSystem,RAID1: Size:8.00MiB, Used:64.00KiB
/dev/sda48.00MiB
/dev/sdb48.00MiBUnallocated:
/dev/sda4 2.38TiB /dev/sdb4 2.38TiBroot@backup01 ~ # btrfs dev us /srv
/dev/sda4, ID: 1
Device size: 2.63TiB
Data,single: 8.00MiB
Data,RAID1: 252.00GiBMetadata,single: 8.00MiB Metadata,RAID1: 3.00GiB System,single: 4.00MiB System,RAID1: 8.00MiB Unallocated: 2.38TiB
/dev/sdb4, ID: 2
Device size: 2.63TiB
Data,RAID1: 252.00GiBMetadata,RAID1: 3.00GiB System,RAID1: 8.00MiB Unallocated: 2.38TiB
Signature · 4 lines
Hugo Mills | The trouble with you, Ibid, is you think you know hugo@... carfax.org.uk | everything. http://carfax.org.uk/ | PGP: 65E74AC0 |