3.4. GFS2 配​​​​​​​额​​​​​​​管​​​​​​​理​​​​​​​

文​​​​​​​件​​​​​​​系​​​​​​​统​​​​​​​配​​​​​​​额​​​​​​​是​​​​​​​用​​​​​​​来​​​​​​​限​​​​​​​制​​​​​​​某​​​​​​​个​​​​​​​用​​​​​​​户​​​​​​​或​​​​​​​者​​​​​​​组​​​​​​​群​​​​​​​使​​​​​​​用​​​​​​​的​​​​​​​文​​​​​​​件​​​​​​​系​​​​​​​统​​​​​​​空​​​​​​​间​​​​​​​。​​​​​​​对​​​​​​​用​​​​​​​户​​​​​​​或​​​​​​​者​​​​​​​组​​​​​​​群​​​​​​​没​​​​​​​有​​​​​​​配​​​​​​​额​​​​​​​限​​​​​​​制​​​​​​​除​​​​​​​非​​​​​​​对​​​​​​​其​​​​​​​进​​​​​​​行​​​​​​​设​​​​​​​置​​​​​​​。​​​​​​​GFS2 会​​​​​​​不​​​​​​​断​​​​​​​跟​​​​​​​踪​​​​​​​每​​​​​​​个​​​​​​​用​​​​​​​户​​​​​​​或​​​​​​​者​​​​​​​组​​​​​​​群​​​​​​​使​​​​​​​用​​​​​​​的​​​​​​​空​​​​​​​间​​​​​​​，即​​​​​​​使​​​​​​​没​​​​​​​有​​​​​​​设​​​​​​​定​​​​​​​限​​​​​​​制​​​​​​​也​​​​​​​是​​​​​​​如​​​​​​​此​​​​​​​。​​​​​​​GFS2 以​​​​​​​互​​​​​​​动​​​​​​​的​​​​​​​方​​​​​​​式​​​​​​​更​​​​​​​新​​​​​​​配​​​​​​​额​​​​​​​信​​​​​​​息​​​​​​​，因​​​​​​​此​​​​​​​系​​​​​​​统​​​​​​​崩​​​​​​​溃​​​​​​​并​​​​​​​不​​​​​​​需​​​​​​​要​​​​​​​重​​​​​​​建​​​​​​​配​​​​​​​额​​​​​​​使​​​​​​​用​​​​​​​。​​​​​​​

To prevent a performance slowdown, a GFS2 node synchronizes updates to the quota file only periodically. The "fuzzy" quota accounting can allow users or groups to slightly exceed the set limit. To minimize this, GFS2 dynamically reduces the synchronization period as a "hard" quota limit is approached.

GFS2 使​​​​​​​用​​​​​​​其​​​​​​​ gfs2_quota 命​​​​​​​令​​​​​​​管​​​​​​​理​​​​​​​配​​​​​​​额​​​​​​​。​​​​​​​其​​​​​​​它​​​​​​​ Linux 配​​​​​​​额​​​​​​​工​​​​​​​具​​​​​​​在​​​​​​​ GFS2 中​​​​​​​无​​​​​​​法​​​​​​​使​​​​​​​用​​​​​​​。​​​​​​​

gfs2_quota limit -u User -l Size -f MountPoint

gfs2_quota limit -g Group -l Size -f MountPoint

gfs2_quota warn -u User -l Size -f MountPoint

gfs2_quota warn -g Group -l Size -f MountPoint

gfs2_quota limit -u Bert -l 1024 -f /mygfs2

gfs2_quota warn -g 21 -l 50 -k -f /mygfs2