Oracle – Linux – Network

quota, membatasi berapa banyak user menyimpan data ke sebuah folder

1. apakah sudah diinstall ?, jika belum diinstall
[root@wksvr ~]# rpm -ivh quota-3.13-1.2.3.2.el5.i386.rpm

2. edit /etc/fstab
[root@wksvr ~]# vi /etc/fstab
#/dev/hdb1 /u02 ext3 defaults 1 2
/dev/hdb1 /u02 ext3 defaults,grpquota,usrquota 1 2

3. remount
[root@wksvr ~]# mount -o remount /u02
[root@wksvr ~]# mount
/dev/hda2 on / type ext3 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
/dev/hda1 on /boot type ext3 (rw)
/dev/hda4 on /u01 type ext3 (rw)
/dev/hdb1 on /u02 type ext3 (rw,grpquota,usrquota)
tmpfs on /dev/shm type tmpfs (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)

4. bikin database [cepat / lambatnya proses tergantung besarnya kapasitas partisi]
[root@wksvr ~]# quotacheck -cugm /u02
[root@wksvr ~]# ls -l /u02/aquo*
-rw——- 1 root root 7168 Mar 14 10:31 /u02/aquota.group
-rw——- 1 root root 7168 Mar 14 10:31 /u02/aquota.user

5. setquota user
# setquota -u user bs bh is ih -a fs
user : username
bs : block soft limit
bh : block hard limit
is : inode soft limit
ih : inode hard limit
fs : filesystem

6. setquota group
# setquota -g group bs bh is ih -a fs
group : groupname
bs : block soft limit
bh : block hard limit
is : inode soft limit
ih : inode hard limit
fs : filesystem

7. test….test……[aku pilih group]
7a. setquota
misal ada group ws_matras dihatah 250 MB dalam server, maka setquota dapat di set sebagai berikut:
[root@wksvr ~]# setquota -g ws_matras 250000 250000 1000 1000 -a /u02/matras
nilai soft/hard block 250000
soft/hard inode 1000 [asumsi rata-rata 1 file berukuran 250 KB = 1000]

7b. Aktifkan quota
[root@wksvr ~]# quotaon -guva
/dev/hdb1 [/u02]: group quotas turned on
/dev/hdb1 [/u02]: user quotas turned on

7c. Cek quota group
[root@wksvr ~]# quota -g ws_matras
Disk quotas for group ws_matras (gid 1122):
Filesystem blocks quota limit grace files quota limit grace
/dev/hdb1 4 250000 250000 1 1000 1000

7d. report quota
7d.i. report quota setelah ditambahi file menjadi 29692
[root@wksvr ~]# repquota -a
*** Report for user quotas on device /dev/hdb1
Block grace time: 7days; Inode grace time: 7days
Block limits File limits
User used soft hard grace used soft hard grace
———————————————————————-
root — 202792 0 0 4 0 0
SUJO — 8 0 0 2 0 0
#3679 — 29692 0 0 2 0 0

7d.ii. report quota setelah ditambahi file menjadi 189120
[root@wksvr ~]# repquota -a
*** Report for user quotas on device /dev/hdb1
Block grace time: 7days; Inode grace time: 7days
Block limits File limits
User used soft hard grace used soft hard grace
———————————————————————-
root — 202792 0 0 4 0 0
SUJO — 8 0 0 2 0 0
#3679 — 189120 0 0 3 0 0

7d.iii. report quota setelah ditambahi file menjadi 189120
[root@wksvr ~]# repquota -a
*** Report for user quotas on device /dev/hdb1
Block grace time: 7days; Inode grace time: 7days
Block limits File limits
User used soft hard grace used soft hard grace
———————————————————————-
root — 202792 0 0 4 0 0
SUJO — 8 0 0 2 0 0
#3679 — 189120 0 0 3 0 0

7d.iv. saat ditambahi lebih dari 250MB, lewat samba – akses windows
muncul “error There is not enough free disk space”

8. edit quota [250 MB --> 25GB]
[root@wksvr u02]# edquota -g ws_matras
Disk quotas for group ws_matras (gid 1122):
Filesystem blocks soft hard inodes soft hard
/dev/hdb1 4 25000000 25000000 1 100000 100000