How can I detect how much free space is left on a btrfs-volume?
As I read (and learned in practice!) df reports cannot be trusted if used on
btrfs-volumes.
Greetings, Michael
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I have a mysql database which consists of hundreds of millions, if not
billions of Usenet newsgroup headers. This data should be highly
compressable, so I put the mysql data directory on a btrfs filesystem
mounted with the compress option:
/dev/sdi on /var/news/mysql type btrfs
On Saturday 16 January 2010, Michael Niederle wrote:
How can I detect how much free space is left on a btrfs-volume?
As I read (and learned in practice!) df reports cannot be trusted if used
on
btrfs-volumes.
Try btrfs-show
$ btrfs-show
Label: bar uuid:
Hi, Goffredo!
Try btrfs-show
Thanks for your advice!
btrfs-show works but it displays a lot of error message for non-btrfs devices:
btrfs-show
failed to read /dev/sdg
failed to read /dev/sdg1
failed to read /dev/sdg2
failed to read /dev/sdg3
failed to read /dev/sdg4
failed to read /dev/md1
On Saturday 16 January 2010, you (Dipl.-Ing. Michael Niederle) wrote:
Hi, Goffredo!
Try btrfs-show
Thanks for your advice!
btrfs-show works but it displays a lot of error message for non-btrfs
devices:
btrfs-show
failed to read /dev/sdg
failed to read /dev/sdg1
failed to read
Goffredo Baroncelli wrote:
Try btrfs-show
Ok:
$ mount
/dev/sdc on /media/452f782b-738a-4699-abfa-588eecab07ea type btrfs
(rw,nosuid,nodev,uhelper=devkit)
$ df
/dev/sdc 932G 6.7G 925G 1%
/media/452f782b-738a-4699-abfa-588eecab07ea
$ btrfs-show
failed to read /dev/sdb1
On Saturday 16 January 2010, you (Svein Erik Brostigen) wrote:
Goffredo Baroncelli wrote:
Try btrfs-show
Ok:
$ mount
/dev/sdc on /media/452f782b-738a-4699-abfa-588eecab07ea type btrfs
(rw,nosuid,nodev,uhelper=devkit)
$ df
/dev/sdc 932G 6.7G 925G 1%
On Saturday 16 January 2010, Mathieu Chouquet-Stringer wrote:
Hello,
kreij...@gmail.com (Goffredo Baroncelli) writes:
Try btrfs-show
[...]
How do you read this then:
Label: none uuid: 27fafa43-7ad0-4e8a-ada8-36f73ef8984c
Total devices 2 FS bytes used 79.63GB
Hello,
kreij...@gmail.com (Goffredo Baroncelli) writes:
Try btrfs-show
[...]
How do you read this then:
Label: none uuid: 27fafa43-7ad0-4e8a-ada8-36f73ef8984c
Total devices 2 FS bytes used 79.63GB
devid2 size 111.79GB used 111.01GB path /dev/sdb
devid1
Hello,
when trying to btrfsck my filesystem, I got the following error:
# btrfsck /dev/sda7
parent transid verify failed on 13785038848 wanted 45848 found 45839
Segmentation fault
Crash occurs at extent-tree.c:find_first_block_group when it gets:
leaf = path-nodes[0];
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