| 磁盘配额 n 功能 使用磁盘配额，系统管理员可以对磁盘空间进行管理，对不同 用户在文件和磁盘容量上加以限制，这样就能有效的利用磁盘 有限的容量。 n 磁盘配额的两种磁盘管理方式 1.基于文件inode的磁盘管理 2.基于磁盘存储块的磁盘管理 n 特点 磁盘配额是在每个用户，每个文件系统的基础上被处理的 磁盘配额的配置步骤 1、修改/etc/fstab文件，在对应的分区上加用户配额（usrquota）或组配额(grpquota)。 2、重新挂载分区，使其配额参数生效。 3、创建配额数据库文件。aquota.user,aquota.group 4、设置用户配额。edquota -u username 设置组配额。 edquota -g groupname 5、激活配额。 quotaon -a 禁用配额。 quotaoff -a 6、测试配额。 [root@client67 ~]# vi /etc/fstab [root@client67 ~]# head /etc/fstab # This file is edited by fstab-sync - see 'man fstab-sync' for details LABEL=/1 / ext3 defaults,usrquota,grpquo 1 1 LABEL=/boot1 /boot ext3 defaults 1 2 LABEL=/data /data ext3 defaults 1 2 none /dev/pts devpts gid=5,mode=620 0 0 none /dev/shm tmpfs defaults 0 0 none /proc proc defaults 0 0 none /sys sysfs defaults 0 0 LABEL=/u01 /u01 ext3 defaults 1 2 LABEL=SWAP-sda6 swap swap defaults 0 0 [root@client67 ~]# mount /dev/sda5 on / type ext3 (rw) none on /proc type proc (rw) none on /sys type sysfs (rw) none on /dev/pts type devpts (rw,gid=5,mode=620) usbfs on /proc/bus/usb type usbfs (rw) /dev/sda1 on /boot type ext3 (rw) /dev/sda3 on /data type ext3 (rw) none on /dev/shm type tmpfs (rw) /dev/sda2 on /u01 type ext3 (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw) /proc on /var/named/chroot/proc type none (rw,bind) /dev/sda7 on /media/sda7 type ext3 (rw) [root@client67 ~]# mount -o remount / [root@client67 ~]# mount |grep sda5 /dev/sda5 on / type ext3 (rw,usrquota,grpquota) [root@client67 ~]# quotacheck -mcvugf / quotacheck: Scanning /dev/sda5 [/] quotacheck: Cannot stat old user quota file: 没有那个文件或目录 quotacheck: Cannot stat old group quota file: 没有那个文件或目录 quotacheck: Cannot stat old user quota file: 没有那个文件或目录 quotacheck: Cannot stat old group quota file: 没有那个文件或目录 done quotacheck: Checked 15796 directories and 118640 files quotacheck: Old file not found. quotacheck: Old file not found. [root@client67 ~]# ls / aquota.group boot etc lib misc proc selinux tftpboot usr aquota.user data home lost found mnt root srv tmp var bin dev initrd media opt sbin sys u01 [root@client67 ~]# useradd abc useradd: user abc exists [root@client67 ~]# useradd xyz [root@client67 ~]# edquota -u xyz [root@client67 ~]# [root@client67 ~]# quotaon / [root@client67 ~]# quotastats Kernel quota version: 6.5.1 Number of dquot lookups: 81 Number of dquot drops: 1 Number of dquot reads: 6 Number of dquot writes: 0 Number of quotafile syncs: 20 Number of dquot cache hits: 75 Number of allocated dquots: 6 Number of free dquots: 0 Number of in use dquot entries (user/group): 6 [root@client67 ~]# su - xyz [xyz@client67 ~]$ whoami xyz [xyz@client67 ~]$ dd if=/dev/zero of=file1 bs=1024k count=1 sda5: warning, user block quota exceeded. 读入了 1 0 个块 输出了 1 0 个块 [xyz@client67 ~]$ quota Disk quotas for user xyz (uid 8893): Filesystem blocks quota limit grace files quota limit grace /dev/sda5 1032* 1000 1500 7days 1 5 8 [xyz@client67 ~]$ touch a b c d e sda5: warning, user file quota exceeded. [xyz@client67 ~]$ [xyz@client67 ~]$ quota Disk quotas for user xyz (uid 8893): Filesystem blocks quota limit grace files quota limit grace /dev/sda5 1052* 1000 1500 6days 6* 5 8 7days [xyz@client67 ~]$ touch f g h i sda5: write failed, user file limit reached. touch: cannot touch ‘h’: 超出磁盘限额 touch: cannot touch ‘i’: 超出磁盘限额 [xyz@client67 ~]$ quota Disk quotas for user xyz (uid 8893): Filesystem blocks quota limit grace files quota limit grace /dev/sda5 1060* 1000 1500 6days 8* 5 8 [xyz@client67 ~]$ ls a b c d e f file1 g [xyz@client67 ~]$ exit logout [root@client67 ~]# repquota Bad number of arguments. repquota: Utility for reporting quotas. Usage: repquota [-vugsi] [-c|C] [-t|n] [-F quotaformat] (-a | mntpoint) Bugs to mvw@planets.elm.net , jack@suse.cz [root@client67 ~]# repquota -a *** Report for user quotas on device /dev/sda5 Block grace time: 7days; Inode grace time: 7days Block limits File limits User used soft hard grace used soft hard grace ---------------------------------------------------------------------- root -- 3225436 0 0 134168 0 0 daemon -- 20 0 0 3 0 0 lp -- 8 0 0 1 0 0 rpm -- 42940 0 0 111 0 0 netdump -- 16 0 0 2 0 0 rpcuser -- 8 0 0 1 0 0 smmsp -- 16 0 0 2 0 0 apache -- 24 0 0 3 0 0 squid -- 16 0 0 2 0 0 webalizer -- 32 0 0 4 0 0 xfs -- 4 0 0 1 0 0 ntp -- 16 0 0 2 0 0 htt -- 28 0 0 4 0 0 quagga -- 40 0 0 5 0 0 amanda -- 1096 0 0 58 0 0 named -- 112 0 0 14 0 0 ldap -- 8 0 0 1 0 0 gdlc -- 104 0 0 13 0 0 hesx -- 12 0 0 2 0 0 test -- 96 0 0 12 0 0 test2 -- 96 0 0 12 0 0 xyz 1060 1000 1500 6days 8 5 8 6days #500 -- 476 0 0 14 0 0 |
|小黑屋|最新主题|手机版|微赢网络技术论坛
( 苏ICP备08020429号 )
GMT+8, 2024-9-30 11:35 , Processed in 0.118237 second(s), 12 queries , Gzip On, MemCache On.
Powered by Discuz! X3.5
© 2001-2023 Discuz! Team.
