I've created a large btrfs volume out of two large raid-60 devices. On
there I've created three subvolumes. When I do a list of those the 2nd
isn't displayed. If I however add a fouth subvol they all gets listed.
This is on a HP DL360 running RHEL6.3 with a P411 SAS Raid controller
connected to a HP MD600 (70 x 2TB NL-SAS).
I've installed kernel-ml v3.7.4 from elrepo and also installed
btrfs-progs-0.19-12.el6.x86_64
root@data01:/opt/data# btrfs fi sh
failed to read /dev/sr0
Label: none uuid: 786684d1-95fa-4809-8fca-e17e37a79999
Total devices 2 FS bytes used 816.00KB
devid 1 size 54.58TB used 2.03GB path /dev/sdb
devid 2 size 54.58TB used 2.01GB path /dev/sdc
Btrfs Btrfs v0.19
root@data01:/opt/data# ls -l
total 0
drwxr-xr-x 1 root root 0 Jan 31 15:55 buffer
drwxr-xr-x 1 root root 0 Jan 31 15:55 consolidated
drwxr-xr-x 1 root root 0 Jan 31 15:55 staging
root@data01:/opt/data# btrfs subvolume list .
ID 265 top level 5 path consolidated
ID 267 top level 5 path buffer
root@data01:/opt/data# btrfs subvolume create 4thsubvol
Create subvolume './4thsubvol'
root@data01:/opt/data# btrfs subvolume list .
ID 265 top level 5 path consolidated
ID 266 top level 5 path staging
ID 267 top level 5 path buffer
ID 272 top level 5 path 4thsubvol
root@data01:/opt/data# rpm -qa | grep btrfs
btrfs-progs-0.19-12.el6.x86_64
It surely is a bug, but has it been reported and/or fixed? I wasn't
able to find out by googling just now.
Med vennlig hilsen / kind regards
Christopher Thorjussen
System Administrator, VCP4/VCP5
The Online Backup Company AS
http://www.onlinebackupcompany.no
"Backup isn't the real concern. Restoring normal business is."
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