一：內核中支持QUOTA:

[root@localhost /]# grep CONFIG_QUOTA /boot/config-3.10.0-123.el7.x86_64CONFIG_QUOTA=yCONFIG_QUOTA_NETLINK_INTERFACE=y# CONFIG_QUOTA_DEBUG is not setCONFIG_QUOTA_TREE=yCONFIG_QUOTACTL=yCONFIG_QUOTACTL_COMPAT=y

如果有上列輸出，則表示當前內核已經支持quota。

二：修改/etc/fstab加入QUOTA支持：

[root@localhost /]# vim /etc/fstab
/dev/sdb1       /dvd    xfs     defaults,usrquota,grpquota    1      2

三：使用quotacheck初始化QUOTA數據庫：

因為quotacheck依據/etc/mtab搜索文件系統，所以要將剛剛修改的/dev/sdb1重新掛載

[root@localhost /]# mount /dvd -o remount    [root@localhost /]# mountproc on /proc type proc (rw,nosuid,nodev,noexec,relatime)sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime,seclabel)devtmpfs on /dev type devtmpfs (rw,nosuid,seclabel,size=926912k,nr_inodes=231728,mode=755)securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,seclabel)devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,seclabel,gid=5,mode=620,ptmxmode=000)tmpfs on /run type tmpfs (rw,nosuid,nodev,seclabel,mode=755)tmpfs on /sys/fs/cgroup type tmpfs (rw,nosuid,nodev,noexec,seclabel,mode=755)cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd)pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpuacct,cpu)cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)cgroup on /sys/fs/cgroup/net_cls type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls)cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)configfs on /sys/kernel/config type configfs (rw,relatime)/dev/sda3 on / type xfs (rw,relatime,seclabel,attr2,inode64,noquota)selinuxfs on /sys/fs/selinux type selinuxfs (rw,relatime)systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=32,pgrp=1,timeout=300,minproto=5,maxproto=5,direct)hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,seclabel)debugfs on /sys/kernel/debug type debugfs (rw,relatime)mqueue on /dev/mqueue type mqueue (rw,relatime,seclabel)sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw,relatime)sunrpc on /proc/fs/nfsd type nfsd (rw,relatime)/dev/sda1 on /boot type xfs (rw,relatime,seclabel,attr2,inode64,noquota)/dev/sdb1 on /dvd type ext2 (rw,relatime,seclabel,quota,usrquota,grpquota)[root@localhost /]# quotacheck -avugquotacheck: Quota for users is enabled on mountpoint /dvd so quotacheck might damage the file.Please turn quotas off or use -f to force checking.-a : 掃描所有在/etc/mtab中開啟quota的文件系統-v : 顯示掃描過程-u : 掃描所有user quotas  (usrquota)-g : 掃描所有group quotas (grpquota)