It’s possible to limit Gluster volume usage or directory usage on a Gluster volume to set quota.

For example, Set quota to a Gluster Volume [vol_distributed] like an example of the link here .

Enable quota on taget GlusterFS volume you’d like to set.

[root@node01 ~]# gluster volume quota vol_distributed enable
volume quota : success
[root@node01 ~]# gluster volume info
Volume Name: vol_distributed
Type: Distribute
Volume ID: 31b69330-bf38-4540-8524-2c99184993a0
Status: Started
Snapshot Count: 0
Number of Bricks: 2
Transport-type: tcp
Bricks:
Brick1: node01:/glusterfs/distributed
Brick2: node02:/glusterfs/distributed
Options Reconfigured:
features.quota-deem-statfs: on
features.inode-quota: on
features.quota: on
storage.fips-mode-rchecksum: on
transport.address-family: inet
nfs.disable: on
cluster.enable-shared-storage: enable
# to disable, set like follows
[root@node01 ~]# gluster volume quota vol_distributed disable

Set quota to the entire volume.

# for example, set 1GB quota to the entire [vol_distributed] volume
# gluster volume quota [volume name] limit-usage [path of target directory] [hard_limit]
[root@node01 ~]# gluster volume quota vol_distributed limit-usage / 1GB
volume quota : success
[root@node01 ~]# gluster volume quota vol_distributed list
Path Hard-limit Soft-limit Used Available Soft-limit exceeded? Hard-limit exceeded?
-------------------------------------------------------------------------------------------------------------------------------
/ 1.0GB 80%(819.2MB) 512Bytes 1024.0MB No No
# on a client, quota size is displayed as whole filesystem size
[root@client ~]# df -h /mnt
Filesystem Size Used Avail Use% Mounted on
node01.srv.world:/vol_distributed 1.0G 0 1.0G 0% /mnt
# if you'd like to see whole disk size even on a client, not display quota size,
# turn off [quota-deem-statfs] parameter on a GlusterFS volume node
[root@node01 ~]# gluster volume set vol_distributed quota-deem-statfs off

Set quota to a directory on a volume.

# for example, set 1GB quota to [/dir01] directory on [vol_distributed] volume
[root@node01 ~]# gluster volume quota vol_distributed limit-usage /dir01 1GB
volume quota : success
[root@node01 ~]# gluster volume quota vol_distributed list
Path Hard-limit Soft-limit Used Available Soft-limit exceeded? Hard-limit exceeded?
-------------------------------------------------------------------------------------------------------------------------------
/dir01 1.0GB 80%(819.2MB) 0Bytes 1.0GB No No
# on a client, quota size is displayed as whole directory size
[root@client ~]# df -h /mnt/dir01
Filesystem Size Used Avail Use% Mounted on
node01.srv.world:/vol_distributed 1.0G 0 1.0G 0% /mnt

Set specific soft limit to a quota setting.

# for example, set 1GB quota to [/dir01] directory on [vol_distributed] volume and set 70% soft limit
# gluster volume quota [volume name] limit-usage [path of target directory] [hard_limit] [soft_limit]
[root@node01 ~]# gluster volume quota vol_distributed limit-usage /dir01 1GB 70
volume quota : success
[root@node01 ~]# gluster volume quota vol_distributed list
Path Hard-limit Soft-limit Used Available Soft-limit exceeded? Hard-limit exceeded?
-------------------------------------------------------------------------------------------------------------------------------
/dir01 1.0GB 70%(716.8MB) 0Bytes 1.0GB No No

To delete quota, run command like follows.

# for example, delete quota on [vol_distributed] volume
[root@node01 ~]# gluster volume quota vol_distributed remove /
volume quota : success
[root@node01 ~]# gluster volume quota vol_distributed list
quota: No quota configured on volume vol_distributed

摘自 GlusterFS 9 : Set Quota · Server World，版权归原作者所有，此处仅作个人学习整理。