* BTRFS subvolume quota limits
@ 2011-11-20 21:35 Karol Šebesta
2011-11-20 21:50 ` Karol Šebesta
0 siblings, 1 reply; 4+ messages in thread
From: Karol Šebesta @ 2011-11-20 21:35 UTC (permalink / raw)
To: linux-admin
Hello,
Is there any possibility to set quota limit for subvolume created in
BTRFS pool as in Solaris ZFS?
I'm currently testing btrfs and I have a pool /home with two
partitions (disks) and three subvolumes on it:
Label: none uuid: b742c9c7-162b-40d1-9186-f1c84418ff53
Total devices 2 FS bytes used 513.02MB
devid 2 size 20.00GB used 1.26GB path /dev/sdb
devid 1 size 5.00GB used 1.26GB path /dev/sda6
BTRFS:/ # btrfs subvolume list /home
ID 257 top level 5 path Download
ID 258 top level 5 path Test
ID 261 top level 5 path Test2
BTRFS:/ #
These subvolumes are mounted as /apps, /Test and /Test2
/dev/sda6 25G 514M 9.0G 6% /home
/dev/sdb 25G 514M 9.0G 6% /apps
/dev/sdb 25G 514M 9.0G 6% /Test
/dev/sdb 25G 514M 9.0G 6% /Test2
In Solaris ZFS I can use:
Example:
zfs set quota=1G home/Download --> and /apps will be have 1GB size
zfs set quota=5G home/Test --> and /Test will be have 5GB size
zfs set quota=10G home/Test2 --> and /Test2 will be have 10GB size
And in pool /home will be still 9GB free space for future extends.
It is possible in BTRFS? I know there is "btrfs filesystem resize" but
this only resize/reduce the whole /home pool and not set quota on
subvolumes as I need.
Any help is appreciated.
Thank you.
^ permalink raw reply [flat|nested] 4+ messages in thread* BTRFS subvolume quota limits
2011-11-20 21:35 BTRFS subvolume quota limits Karol Šebesta
@ 2011-11-20 21:50 ` Karol Šebesta
2011-11-21 4:15 ` dima
0 siblings, 1 reply; 4+ messages in thread
From: Karol Šebesta @ 2011-11-20 21:50 UTC (permalink / raw)
To: linux-btrfs
Hello,
Is there any possibility to set quota limit for subvolume created in
BTRFS pool as in Solaris ZFS?
I'm currently testing btrfs and I have a pool /home with two
partitions (disks) and three subvolumes on it:
Label: none =A0uuid: b742c9c7-162b-40d1-9186-f1c84418ff53
=A0 =A0 =A0 =A0Total devices 2 FS bytes used 513.02MB
=A0 =A0 =A0 =A0devid =A0 =A02 size 20.00GB used 1.26GB path /dev/sdb
=A0 =A0 =A0 =A0devid =A0 =A01 size 5.00GB used 1.26GB path /dev/sda6
BTRFS:/ # btrfs subvolume list /home
ID 257 top level 5 path Download
ID 258 top level 5 path Test
ID 261 top level 5 path Test2
BTRFS:/ #
These subvolumes are mounted as /apps, /Test and /Test2
/dev/sda6 =A0 =A0 =A0 =A025G =A0514M =A09.0G =A0 6% /home
/dev/sdb =A0 =A0 =A0 =A0 25G =A0514M =A09.0G =A0 6% /apps
/dev/sdb =A0 =A0 =A0 =A0 25G =A0514M =A09.0G =A0 6% /Test
/dev/sdb =A0 =A0 =A0 =A0 25G =A0514M =A09.0G =A0 6% /Test2
In Solaris ZFS I can use:
Example:
zfs set quota=3D1G home/Download =A0 --> and /apps will be have 1GB siz=
e
zfs set quota=3D5G home/Test =A0 --> and /Test will be have 5GB size
zfs set quota=3D10G home/Test2 =A0 --> and /Test2 will be have 10GB siz=
e
And in pool /home will be still 9GB free space for future extends.
It is possible in BTRFS? I know there is "btrfs filesystem resize" but
this only resize/reduce the whole /home pool and not set quota on
subvolumes as I need.
Any help is appreciated.
Thank you.
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^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2011-11-21 5:18 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2011-11-20 21:35 BTRFS subvolume quota limits Karol Šebesta
2011-11-20 21:50 ` Karol Šebesta
2011-11-21 4:15 ` dima
2011-11-21 5:18 ` Arne Jansen
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