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标题: 磁盘和文件系统管理3-磁盘配额 [打印本页]

作者: chinasll 时间: 2020-4-2 15:47
标题: 磁盘和文件系统管理3-磁盘配额

磁盘配额

[root@rhel ~]# rpm -qa | grep quota

quota-3.17-18.el6.i686

[root@rhel ~]# rpm -ql quota | grep sbin

/sbin/quotacheck

/sbin/quotaoff

/sbin/quotaon

/usr/sbin/convertquota

/usr/sbin/edquota

/usr/sbin/quota_nld

/usr/sbin/quotastats

/usr/sbin/repquota

/usr/sbin/rpc.rquotad

/usr/sbin/setquota

/usr/sbin/warnquota

[root@localhost ~]# mkfs -t ext4， /dev/mail_store/mail

此处格式化分区很重要，注格式化的分区系统和挂在点的文件系统要一致。

（如果分区已经挂载，修改了/etc/fstab文件以后，可以执行 mount -o remount /mailbox 进行重新挂载。

若不修改fstab文件，在挂载命令行中也可以手动添加磁盘配额支持，例如：

mount -o remount,usrquota,grpquota /dev/sdb1 /mailbox）

[root@rhel ~]# mount -o remount,usrquota,grpquota /dev/mail_store/mail /mailbox/

[root@rhel ~]# mount

/dev/sda3 on / type ext4 (rw)

proc on /proc type proc (rw)

sysfs on /sys type sysfs (rw)

devpts on /dev/pts type devpts (rw,gid=5,mode=620)

tmpfs on /dev/shm type tmpfs (rw,rootcontext="system_u

bject_r:tmpfs_t:s0")

/dev/sda1 on /boot type ext4 (rw)

none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)

sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)

gvfs-fuse-daemon on /root/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev)

/dev/sr0 on /media/RHEL_6.4 i386 Disc 1 type iso9660 (ro,nosuid,nodev,uhelper=udisks,uid=0,gid=0,iocharset=utf8,mode=0400,dmode=0500)

/dev/mapper/mail_store-mail on /mailbox type ext3 (rw,usrquota,grpquota)

[root@rhel ~]# chmod 777 /mailbox/

[root@rhel ~]# vi /etc/fstab

[root@rhel ~]# cat /etc/fstab

# /etc/fstab

# Created by anaconda on Fri Jun 7 00:57:58 2013

# Accessible filesystems, by reference, are maintained under '/dev/disk'

# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info

UUID=3eb0c7ea-31b0-460f-961a-414739c61207 / ext4 defaults 1 1

UUID=d6cdff6e-b69d-45f0-82a6-6d2062007bb1 /boot ext4 defaults 1 2

UUID=bf3e0ead-dd2f-4ecd-875d-c22270fe60b0 swap swap defaults 0 0

tmpfs /dev/shm tmpfs defaults 0 0

devpts /dev/pts devpts gid=5,mode=620 0 0

sysfs /sys sysfs defaults 0 0

proc /proc proc defaults 0 0

/dev/mapper/mail_store-mail /mailbox ext3 defaults,usrquota,grpquota 0 0

（出现上面的错误，提示不能创建/mailbox/aquota.user /mailbox/aquota.group 这2个文件，没有这个文件，没有权限操作。在home目录也没有发现这2个文件。

原因找到了，需要关闭selinux，然后就可以执行了。关闭selinux的命令是#setenforce 0 )

[root@rhel ~]# quotacheck –augcv

quotacheck: Your kernel probably supports journaled quota but you are not using it. Consider switching to journaled quota to avoid running quotacheck after an unclean shutdown.

quotacheck: Scanning /dev/mapper/mail_store-mail [/mailbox] done

quotacheck: Cannot stat old user quota file: \u6ca1\u6709\u90a3\u4e2a\u6587\u4ef6\u6216\u76ee\u5f55

quotacheck: Cannot stat old group quota file: \u6ca1\u6709\u90a3\u4e2a\u6587\u4ef6\u6216\u76ee\u5f55

quotacheck: Cannot stat old user quota file: \u6ca1\u6709\u90a3\u4e2a\u6587\u4ef6\u6216\u76ee\u5f55

quotacheck: Cannot stat old group quota file: \u6ca1\u6709\u90a3\u4e2a\u6587\u4ef6\u6216\u76ee\u5f55

quotacheck: Checked 3 directories and 2 files

quotacheck: Old file not found.

[root@rhel ~]# ls -l /mailbox/aquota.*

-rw-------. 1 root root 6144 6\u6708 7 04:51 /mailbox/aquota.group

-rw-------. 1 root root 6144 6\u6708 7 04:51 /mailbox/aquota.user

[root@rhel ~]# edquota -u zhangsan

Disk quotas for user zhangsan (uid 501):

Filesystem blocks soft hard inodes soft hard

/dev/mapper/mail_store-mail 0 80000 100000 0 40 50

[root@rhel ~]# edquota -g zhangsan

[root@rhel ~]# edquota -t

[root@rhel ~]# quotaon -ugv /mailbox/

/dev/mapper/mail_store-mail [/mailbox]: group quotas turned on

/dev/mapper/mail_store-mail [/mailbox]: user quotas turned on

[root@rhel ~]# quota -u zhangsan

Disk quotas for user zhangsan (uid 500): none

[root@rhel ~]# su - zhangsan

[zhangsan@rhel ~]$ su -

\u5bc6\u7801\uff1a

[root@rhel ~]# quota -u zhangsan

Disk quotas for user zhangsan (uid 500):

Filesystem blocks quota limit grace files quota limit grace

/dev/mapper/mail_store-mail

3012 80000 100000 49* 40 50 7days

[root@rhel ~]# quota -g zhangsan

Disk quotas for group zhangsan (gid 500): none

[root@rhel ~]#

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